Dynamic magnetic information storage or retrieval inventions 08/07

20070201154 - Recording-medium inspection apparatus and method: A recording-medium inspection apparatus checks whether a protrusion provided on a recording medium to be inspected has a height larger than a predetermined height by detecting a contact between the protrusion and a head slider by a sensor while the head slider is flying above the rotating recording medium. The... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP Kratz, Quintos & Hanson, LLP

20070201156 - Substrate processing apparatus, parameter management system for substrate processing apparatus, parameter management method for substrate processing apparatus, program, and storage medium: A substrate processing apparatus which enables parameters for carrying out processing on substrates to be changed easily by a user. A storage device stores parameters that are for controlling the processing and are categorized into a plurality of categories. A control device carries out the processing on the substrate based... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070201162 - Tamper evident tape with integrated emi shielding: The present invention provides a multilayer tape for simultaneously providing shielding of electromagnetic interference (EMI) and evidence of tampering with an electronic device to which it is applied. The multilayer tape can be attached to an electronic device to cover a seam or other opening in the electronic device. An... Agent: H. Sanders Gwin, Jr. Shumaker & Sieffert, P.A.

20070201163 - Disk device: A case of a disk device has an open-topped rectangular base and a top cover in the form of a rectangular plate screwed to the base. A label is pasted on the top cover. Provided in the case are a disk-shaped recording medium, a head for recording and reproducing information... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20070201155 - Disk device and method of controlling the disk device: A disk device, in which information is written by a magnetic head at an arbitrary position on a magnetic recording surface of a disk and the information written at the arbitrary position is read out, includes a control unit for controlling an operation of writing information at the arbitrary position... Agent: Greer, Burns & Crain

20070201157 - Discrete track recording method, storage apparatus and method of producing storage apparatus: A discrete track recording method records information on a magnetic recording medium having mutually adjacent tracks that are separated in advance by a groove. The discrete track recording method carries out a recording using a recording head having a core width in a range greater than or equal to a... Agent: Greer, Burns & Crain

20070201158 - Fly on demand in situ clearance measurement concept in hard disk drive: A method for determining a flying height of a head of a hard disk drive. The disk drive includes a pre-amplifier and an automatic gain control (“AGC”) circuit that are connected to the head. The method includes determining a first automatic gain control value based on AGC values at two... Agent: Irell & Manella LLP

20070201159 - Method to detect the touch down of the flying head on disk: A disk drive that contains a fly on demand head (FOD) and a process for determining contact between the FOD head and a disk. The head includes a heating coil that can receive various levels of power. The process includes using a routine to obtain head position estimate error data.... Agent: Irell & Manella LLP

20070201160 - Positioning of a magnetic head in a magnetic data recording device using a multiple sensor array: A system method and apparatus for determining a position error signal (PES) for servo tracking in a data recording system using a data track. The PES is determined using a sensor array that includes a plurality of sensors offset from one another by certain predetermined distances in a direction perpendicular... Agent: Zilka-kotab, PC

20070201161 - Method and a system for inserting elements in the ground, a data recording medium for the method: A method of inserting a preceding element and then a following element in the ground, along a calculated path, in order to construct a work, the method including: a step of determining an absolute positioning error of a preceding element relative to the nominal position at which the preceding element... Agent: Davidson, Davidson & Kappel, LLC

20070201164 - Data storage device with hard drive and interchangeable data storage disks: A data storage device is provided having a drive hub that may be utilized with a plurality of individual data storage disks that are selectively engageable with the drive hub. In such an arrangement, a plurality of data storage disks may be stored in an inactive state at a storage... Agent: Marsh, Fischmann & Breyfogle LLP

20070201165 - Magnetic head slider: Embodiments in accordance with the present invention provide a magnetic head slider which includes a magnetic recording/reproducing element and a heater which are formed in an air outflow end surface of a slider. The heater includes a heating portion, terminal portions extending from both ends of the heating portion, and... Agent: Townsend And Townsend And Crew LLP

20070201166 - Lead/shield structure for read head sensors: One embodiment of the present invention is directed to a read head for a data storage device including a sensor for reading data from a data storage medium, a first shield disposed adjacent to the sensor and characterized as moment-compensated, and a second shield disposed adjacent to the sensor, the... Agent: Wagner, Murabito & Hao LLP

20070201167 - Method and apparatus providing a stabilized top shield in read head for magnetic recording: A method and apparatus providing a stabilized top shield in a read head used for the longitudinal or perpendicular magnetic recording is disclosed. The top shield includes a laminate structure including at least three layers of ferromagnetic and antiferromagnetic films in a frame. Unidirectional anisotropy induced at the interface of... Agent: David W. Lynch Chambliss, Bahner & Stophel

20070201168 - Magnetization direction control method and application thereof to mram: There is provided a magnetization direction control method for controlling magnetization directions of first to third ferromagnetic layers (11-13) within a synthetic antiferromagnet structure (10A) having the first to the third ferromagnetic layers (11-13) and first and second non-magnetic layers (21, 22) interposed therebetween, without coupling antiferromagnetic material. The magnetization... Agent: Sughrue Mion, PLLC

20070201169 - Magnetoresistance element employing heusler alloy as magnetic layer: An advantage of the application is to provide a magnetoresistance element capable of increasing a plateau magnetic field Hp1 while maintaining high ΔRA. A magnetic layer 4c1 adjacent to a non-magnetic material layer 5 in a second fixed magnetic layer 4c constituting the fixed magnetic layer 4 is formed of... Agent: Brinks Hofer Gilson & Lione

20070195446 - Method and apparatus for controlling write parameter according to voltage variation: Provided is a method and an apparatus for controlling a write parameter according to a voltage variation. The method for controlling the write parameter includes monitoring a voltage supplied to a pre-amplifier before performing a write operation and adjusting the write parameter supplied to the pre-amplifier based on the monitoring... Agent: Volentine & Whitt PLLC

20070195450 - Method for improved insitu spiral writing: A system includes a self-servo-write (SSW) module and a control module. The SSW module generates servo signals and a control signal. The control module generates a first current to bias an actuator arm against a spring when the control signal is received and discontinues the first current to release the... Agent: Harness, Dickey & Pierce P.L.C

20070195443 - Disk-device correcting system, information managing device, master-disk producing device, and master-disk producing method: A master-disk producing device produces a master disk with master-disk identification information added. A disk producing device produces a first disk with the master-disk identification information added, using the master disk with the master-disk identification information added. A first disk device obtains, after the first disk with the master-disk identification... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070195444 - Method and apparatus for improving threshold detection of servo data in the presence of signal asymmetry: An adaptive asymmetry control circuit is described. Such a circuit may be used in magnetic recording applications, for example. The adaptive asymmetry control circuit uses a peak detector which supplies at regular intervals positive or negative signal peak values of an equalized sampled data stream. An asymmetry learning function generates... Agent: Priest & Goldstein, PLLC

20070195445 - Self-servo writing using reference patterns with timing correction: Methods for writing servo fields on a rotatable data storage disk using reference patterns on the data storage disk include generating a clock signal, reading a reference pattern signal from a surface of the disk, generating a phase error signal in response to a phase offset between the clock signal... Agent: Myers Bigel Sibley & Sajovec

20070195447 - Optional data encryption by partition for a partitionable data storage library: Disclosed are a method and apparatus for a data storage library comprising a first and second drive, a first and second mobile medium, a first and second partition wherein the first partition comprises the first drive and the first mobile medium and the second partition comprises the second drive and... Agent: Spectra Logic C/o Hiscock & Barclay, LLP

20070195448 - Random number generation using back electromotive force (bemf) values: Method and apparatus for generating a random number, such as for use in a security protocol to control access to a data processing system. A processor generates the random number in relation to a back electromotive force (BEMF) value. The BEMF value is preferably obtained in response to application of... Agent: Fellers, Snider, Blankenship, Bailey & Tippens

20070195449 - Transducer-data storage medium spacing adjustment: A data storage device, e.g., a disc drive, includes one or more heads including a transducer. Each head also includes a deformable material that allows the spacing adjustments between the transducer and a data storage medium, e.g., a data storage disc, according to each of a plurality of settings. The... Agent: Shumaker & Sieffert, P. A.

20070195451 - Motor drive semiconductor integrated circuit and magnetic disk storage apparatus: The invention provides a motor drive semiconductor integrated circuit for driving and controlling a voice coil motor that can conduct a seek operation, a track follow operation and a settling operation through PWM control, has desired control accuracy and can be produced by a CMOS process. In a voice coil... Agent: Mattingly, Stanger, Malur & Brundidge, P.C.

20070195452 - Magnetic field sensor based on the extraordinary hall effect: A magnetic field sensor includes a metallic bar coupled to a substrate. Current leads are adapted to provide current to the ferromagnetic bar. Voltage leads are coupled to the ferromagnetic bar to sense an induced Hall voltage therein.... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20070195453 - Thin-film magnetic head in which perpendicular magnetic record head overlaps on reproducing head: A thin-film magnetic head is provided. The thin-film magnetic head includes a return-yoke layer formed on an opposed surface such that a maximum length of the return-yoke layer is shorter than a longer length of the length of the upper shield layer and the lower shield layer. The length sets... Agent: Brinks Hofer Gilson & Lione

20070195457 - Magnetic device, perpendicular magnetic recording head, magnetic recording system, method of forming magnetic layer pattern, and method of manufacturing perpendicular magnetic recording head: Provided is a method of manufacturing a perpendicular magnetic recording head which can enhance accuracy and simplify the manufacturing process. The method includes: forming a photoresist pattern having an opening part (the inclination of an inner wall); forming a non-magnetic layer (the inclination of another inner wall) so as to... Agent: Oliff & Berridge, PLC

20070195455 - Perpendicular magnetic recording head capable of suppressing problem such as erasure of magnetic data: A perpendicular magnetic recording head is provided. The perpendicular magnetic recording head includes a main magnetic pole layer overlapped with a sub-yoke layer. The sub-yoke layer having a multiple-magnetic domain includes a magnetic domain having dominant track-widthwise component in contact with a front end face of the sub-yoke layer. A... Agent: Brinks Hofer Gilson & Lione

20070195456 - Perpendicular magnetic recording head capable of suppressing ptp and obtaining stabilized recording medium and method of manufacturing the same: Particularly, there is provided a perpendicular magnetic recording head capable of suppressing PTP and obtaining a stabilized recording ability by improving the shape of the opposed surface of a return yoke layer and a method of manufacturing the same. The shape of the return yoke layer on the opposed surface... Agent: Brinks Hofer Gilson & Lione

20070195454 - Magnetic head and method of manufacturing the same: If the length of a track-defining section from an air bearing surface varies due to tolerance during a head manufacturing process, the recording magnetic field changes, which involves the variation of the track width to be recorded on the medium. In accordance with an embodiment of the present invention, the... Agent: Townsend And Townsend And Crew LLP

20070195458 - Recording medium and apparatus for holding the same: An apparatus for holding a recording medium that contains an engagement member backwards with respect to an insert direction thereof has a main body containing an insert portion through which the recording medium is inserted on one end thereof and an eject portion on the other end thereof. The inserted... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070195459 - Method for manufacturing magnetic recording medium: A method for manufacturing magnetic recording media is provided, by which a magnetic recording medium that has a recording layer formed in a concavo-convex pattern, a sufficiently flat surface, and good recording/reproducing properties can be manufactured. The method includes the steps of: depositing a first filling material over a workpiece... Agent: Oliff & Berridge, PLC

20070195460 - Recording medium, recording method, recording apparatus, reproduction apparatus, data transmission method, and server device: A recording medium is applicable to information service system for receiving and transmitting information when a terminal device on the user's side accesses an administrative server, which is a server device, using a communication line such as the Internet. This recording medium (10a) comprises a lead-in region (16a), a data... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070195461 - Head apparatus and disc drive having the same: A head apparatus includes a head that records information into and reproduces the information from a disc, a slider that supports the head, and flies above a surface of the disc when the disc rotates, the slider having a medium opposing surface that opposes to the disc, a positive pressure... Agent: Greer, Burns & Crain

20070195462 - Method of fabricating a suspension load beam with a composite damping core: A suspension load beam used for attachment to a slider assembly and an actuation arm in a disc drive for data storage has a rigid middle beam section comprising a rigid bottom layer, a rigid top layer and a composite core layer sandwiched between the bottom layer and the top... Agent: Kinney & Lange, P.A.

20070195464 - Downward type mems switch and method for fabricating the same: A downward type micro electro mechanical system (EMS) switch and a method of fabricating the same is provided. The downward type MEMS switch includes first and second cavities formed in a substrate, first and second actuators formed on upper portions of the first and second cavities, first and second fixing... Agent: Sughrue Mion, PLLC

20070195463 - System and method for low profile termination with robust alignment for wireless suspension in hard disk drive: In a hard disk drive, suspension termination pads meet the flex cable termination pads at an intersecting angle. The width of these pads is approximately the same width as the conductor widths. Alignment robustness is attained by choosing an intersection angle that coincides to the arc that the wireless suspension... Agent: Rogitz & Associates

20070195465 - Actuator apparatus of a hard disk drive: An actuator apparatus used with a hard disk drive. The actuator apparatus includes a pivotable actuator arm, a magnetic head mounted onto a first end of the actuator arm, an overmold connected to a second end of the actuator arm and including a metal piece, a voice coil motor (VCM)... Agent: Stanzione & Kim, LLP

20070195466 - Shock resistance disc drive: A carriage supports and drives a suspension that supports a head. The head records information into and reproduces the information from a disc. The carriage includes a stopper that restricts a fluctuation of the disc.... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP

20070195467 - Shield stabilization for magnetoresistive sensors: Apparatus and method for providing a magnetic head that includes a magnetoresistive read sensor disposed between first and second magnetic shields. The shields are configured to reduce protrusion of the shields from a polished flat air bearing surface of the magnetic head upon increases in temperature. This configuration for the... Agent: Patterson & Sheridan, L.L.P.

20070195468 - Self-pinned spin valve sensor having its first ap pinned layer thicker than its second ap pinned layer to reduce the likelihood of amplitude flip: In one illustrative example, a spin valve (SV) sensor of the self-pinned type includes a free layer; an antiparallel (AP) self-pinned layer structure; and a non-magnetic electrically conductive spacer layer in between the free layer and the AP self-pinned layer structure. The AP self-pinned layer structure includes a first AP... Agent: John J. Oskorep, Esq. One Magnificent Mile Center

20070195469 - Magnetoresistive effect element, magnetic head, magnetic reproducing apparatus, and manufacturing method of magnetoresistive effect element: A magnetoresistive effect element includes: a magnetoresistive effect film including a magnetization free layer, a magnetization fixed layer, and an intermediate layer placed between them; a magnetic coupling layer; a ferromagnetic layer; an antiferromagnetic layer; a bias mechanism portion applying a bias magnetic field to the magnetization free layer in... Agent: Nixon & Vanderhye, PC

20070188908 - Disk drive: Embodiments in accordance with the present invention allow a magnetic disk drive to achieve noise reduction and low power consumption through rotation at a low speed and a high transfer rate through rotation at a high speed while allowing reliability to be maintained and achieving an improved recording density. An... Agent: Townsend And Townsend And Crew LLP

20070188907 - Media drive and control method for the same: Embodiments in accordance with the present invention relate to improving error recovery process performance. A head slider in an embodiment of this invention includes a heater for adjusting a clearance between a head element section and a magnetic disk. During an error recovery process (ERP) for a reading error, if... Agent: Townsend And Townsend And Crew LLP

20070188909 - Acceleration feed-forward correction enabled or disabled based on track follow loop signals: Disturbances to actuator control caused by external vibrations are corrected using feed-forward techniques that are selectively enabled or disabled based on signal values within a track follow loop. An increase in data integrity and reliability may be achieved by reducing off-track reads and writes caused by physical disturbances to disk... Agent: Foley & Lardner

20070188912 - Method of controlling movement of a transducer and disk drive using same: A method and apparatus for controlling movement of a transducer to limit its stopping time at a certain position of a disk regardless of whether the disk drive performs a read/write operation, an etching or clustering effect of a lube layer coated on the disk is prevented, thereby preventing performance... Agent: Volentine & Whitt PLLC

20070188911 - Off track write protection using filtered position error signal: Methods of filtering a position error signal (PES) indicative of a position of a transducer of a disk drive include obtaining sample position data for the transducer, eliminating selected data of the sample position data to provide a subset of the sample position data, obtaining a plurality of sets of... Agent: David C. Hall Myers Bigel Sibley & Sajovec, P.A.

20070188901 - Personal audio-video recorder for live meetings: A unique recording system and method that facilitates recording live meetings, discussions or conversations whereby such recordings are available for immediate or near immediate playback is provided. As a result, a user who has momentarily become distracted or inattentive during the meeting can quickly re-listen to what was missed or... Agent: Amin. Turocy & Calvin, LLP

20070188902 - Delivering capacity alerts: Systems and methods to alert content subscribers that content recording space is running low are described. The subscriber is provided a chance to remotely manage their system to accommodate the storage requirements for future, planned recordings. Embodiments can include any type of content recording device, including but not limited to... Agent: Schwegman, Lundberg, Woessner & Kluth, P.A.

20070188903 - Method for measuring track width of hard disk drive: In a method of measuring track widths in a hard disk drive a plurality of estimation values are calculated based on differences in intensity between a plurality first measurement signals produced in relation to a head of the hard disk drive based on a plurality of burst signals stored in... Agent: Volentine & Whitt PLLC

20070188904 - Output control device and recording-medium-driver control device: A determining unit determines whether a clock signal is oscillated with an oscillation amplitude equal to or greater than a predetermined value. An output control unit outputs the clock signal to an output destination when the determining unit determines that the clock signal is oscillated with the oscillation amplitude equal... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070188905 - Recording disk drive and method of managing defective regions in the same: Embodiments in accordance with the present invention relate to identifying an address of user data to be registered as a defective user data address in disk defect inspection. In an embodiment of the present invention, in the state where a write element is positioned to a target position to execute... Agent: Townsend And Townsend And Crew LLP

20070188906 - Disk drive with adaptive actuator braking upon unexpected power loss: A magnetic recording hard disk drive (HDD) uses adaptive braking of the voice coil motor (VCM) actuator upon unexpected loss of power during a track seek. An adaptive braking controller applies a preselected value of brake voltage to the VCM to reverse the motion of the freely-moving actuator. The value... Agent: Thomas R. Berthold

20070188910 - Track following servo actuator offset calibration for tape drive: A magnetic tape drive, having a compound servo actuator, reduces the possibility of overshoots of servo elements when a tape cartridge is loaded, thereby reducing servo failures. The coarse motor is activated, then deactivated when the servo elements locate a servo pattern on the tape. After initialization of a DAC... Agent: Law Office Of Dan Shifrin, PC - Ibm

20070188913 - Recording medium drive including electrostatic actuator between head slider and recording medium: A slider body of a head slider has a medium-opposed surface opposed to a recording medium in a recording medium drive. A head element is mounted on the slider body. A charge region is established on the slider body for holding an electric charge at a local area in the... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP

20070188914 - Multi-purpose flow control device: A device includes a first partial, circular shroud which includes an upstream shroud portion and a downstream shroud portion; an upstream slot panel, defining an upstream bypass slot, disposed on the upstream shroud portion; and a downstream slot panel, defining a downstream reentry slot, disposed on the downstream shroud portion.... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20070188921 - Magnetic head and magnetic disk storage apparatus mounting the head: Embodiments in accordance with the present invention provide a magnetic head in which broadening of the effective track width can be decreased without reducing the write-field intensity and a variation of the track width can be decreased. A main pole consists of a pole tip having a part which provides... Agent: Townsend And Townsend And Crew LLP

20070188920 - Microinductor and fabrication method thereof: A microinductor comprises a magnetic core and a coil which winds around the magnetic core. The magnetic core used in the microinductor is formed of FeCuNbCrSiB.... Agent: Sughrue Mion, PLLC

20070188918 - Perpendicular magnetic recording head and method of manufacturing the same: A perpendicular magnetic recording head and method of manufacturing the same are provided. The perpendicular magnetic recording head records or reads information on or from a perpendicular magnetic recording medium. The perpendicular magnetic recoding head includes a coil, a main pole, and a return pole. The coil serves as a... Agent: Sughrue Mion, PLLC

20070188919 - Thin-film magnetic head having controlled levitation amount by locally projecting an element portion toward recording medium using thermal expansion: There is provided a thin-film magnetic head capable of locally projecting an element portion to a recording medium. A thin-film magnetic head includes an element portion including at least one of a reproducing element and a recording element; and a heat generating element projecting an element portion toward a recording... Agent: Brinks Hofer Gilson & Lione

20070188917 - Layered magnetic film and magnetic head: The layered magnetic film has high saturation magnetic flux density and superior soft magnetic characteristics and can be used as a material of a write-head of a magnetic head capable of recording data with high recording density. The layered magnetic film comprises: at least one magnetic layer mainly made of... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070188916 - Soft magnetic thin film, method of producing the same, and magnetic head: The soft magnetic thin film has high saturation magnetic flux density and superior soft magnetic characteristics, and it can be suitably used as a magnetic film of a magnetic head of a magnetic disk drive unit. The soft magnetic thin film, which is made of an alloy including two or... Agent: Greer, Burns & Crain

20070188915 - Thin film magnetic head including helical coil: A magnetic coil of a thin film magnetic head includes uniform upper and lower coil pattern pieces extending in the direction parallel to the medium-opposed surface at a constant width. A magnetic pole has the front end exposed at the medium-opposed surface. The magnetic pole extends backward from the front... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP

20070188922 - Magnetic head and information storage apparatus: There is provided a magnetic head and an information storage apparatus capable of applying light to a position close to a position to which a magnetic field is applied, without reducing the intensity of the magnetic field. The magnetic head includes a magnetic pole which emits a magnetic flux from... Agent: Greer, Burns & Crain

20070188924 - Perpendicular magnetic recording medium and magnetic storage apparatus using the same: Embodiments in accordance with the present invention provide a perpendicular recording medium with low noise and high recording density by reducing the effects from noise generated from the vicinity of the interface with the intermediate layer of the recording layer, in a perpendicular recording medium utilizing a granular recording layer... Agent: Townsend And Townsend And Crew LLP

20070188923 - Vertical magnetic recording medium: The magnetic recording medium comprises a first recording layer 16, a second recording layer 20 forming ferromagnetic coupling with the first recording layer, and an intermediate layer 18 formed between the first recording layer 16 and the second recording layer 20 and including non-magnetic layers 18a, 18b formed between the... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20070188925 - Flying head slider having depression surrounded by air bearing surface: A recording disk drive includes a head actuator member supporting a flying head slider at its tip end. The head actuator member takes off form a ramp member outside the recording disk when the rotation of the recording disk has entered a steady condition. The flying head slider thus receives... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP

20070188926 - Head suspension assembly and recording medium drive: A head suspension assembly includes a plate member located at a position distanced from the base. A head slider is supported at the front end of the plate member. A leaf spring connects the rear end of the plate member to the front end of the base. A rib extends... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP

20070188927 - Flexure for minimizing fly height modulation of near-contact recording sliders in a disk drive: A flexure mounted slider and its method of fabrication is described, wherein the slider is affixed to a pair of highly compliant, transverse (to the longitudinal axis of a load beam) crossbars whose common axis passes directly above the center of percussion of the slider. The location of the center... Agent: Stephen B. Ackerman

20070188928 - Balancer, head stack assembly with the same, and method for manufacturing the balancer and overmold of the head stack assembly: A balancer installed on an overmold of an head stack assembly to adjust balance of the head stack assembly is formed of stainless steel and demagnetized through a thermal treatment after the stainless steel is processed to have a balancer shape. A method for manufacturing a balancer includes processing stainless... Agent: Staas & Halsey LLP

20070188929 - Actuator load/unload ramp: An actuator assembly is provided having a ramp for unloading a transducing head from a storage medium. The actuator assembly includes an actuator arm rotatable about a pivot point and configured to access data on a storage medium. The actuator arm has a base end coupled to a lift tab... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20070188930 - Symmetric voice coil motor design, assembly methods of constructing same, and hard disk micro drive storage systems including same: A symmetric voice coil motor assembly having a central axis and including: a bearing assembly for rotation about the central axis; a coil assembly that is positioned radially outwardly from the bearing assembly and that has at least two pairs of coils and an inner yoke; a permanent magnet set... Agent: Nixon & Vanderhye, PC

20070188932 - Magnetic head positioning mechanism: A magnetic head positioning mechanism is provided which is excellent in shock-resistance and can achieve high positioning accuracy. By constructing the magnetic head positioning mechanism so that a fine actuator section is composed of an actuator spring made from a thin steel plate, a base plate made from a thick... Agent: Paul-j. Esatto, Jr. Scully, Scott, Murphy & Presser

20070188931 - Rotational micro-actuator integrated with suspension of head gimbal assembly, and disk drive unit with the same: A micro-actuator for a head gimbal assembly includes a metal frame including a bottom support integrated with a suspension flexure of the head gimbal assembly, a top support adapted to support a slider of the head gimbal assembly, and a pair of side arms that interconnect the top support and... Agent: Nixon & Vanderhye, PC

20070188933 - Emr magnetic head having a magnetic flux guide and a body formed at a tail end of a slider: A magnetic head of the present application has a sensor which employs the extraordinary magnetoresistance (EMR) effect. The magnetic head includes a body of semiconductor material positioned over a tail end of a carrying mechanism; a field receiving surface of the body oriented perpendicular to a sensing plane of the... Agent: John J. Oskorep, Esq. One Magnificent Mile Center

20070188934 - Magneto-resistive head having a stable response property without longitudinal biasing and method for manufacturing the same: Embodiments in accordance with the present invention provide a method of manufacturing a magneto-resistive head which can realize high sensitivity and good linear response characteristics with low noise even if a track width becomes narrower. A uniaxial anisotropy unaffected by annealing which is due to the orientation of the crystal... Agent: Townsend And Townsend And Crew LLP

20070188935 - Seedlayer for high hard bias layer coercivity: A seedlayer structure for a high coercivity hard bias layer is disclosed, having at least one bi-layer seedlayer, including a CrMo layer, and a W layer fabricated on the CrMo layer. A hard bias layer is fabricated on the bi-layer seedlayer. Preferably, the seedlayer structure includes two bi-layer seedlayers, which... Agent: Intellectual Property Law Offices

20070188936 - Current confining layer for gmr device: Concerns about inadequate electromigration robustness in CCP CPP GMR devices have been overcome by adding magnesium to the current confining structures that are presently in use. In one embodiment the alumina layer, in which the current carrying copper regions are embedded, is fully replaced by a magnesia layer. In other... Agent: Stephen B. Ackerman

20070188937 - Current-perpendicular-to-the-plane (cpp) magnetoresistive sensor with high-resistivity amorphous ferromagnetic layers: A current-perpendicular-to-the-plane spin-valve (CPP-SV) magnetoresistive sensor has a high-resistivity amorphous ferromagnetic alloy in the free layer and/or the pinned layer. The sensor may have an antiparallel (AP)-pinned structure, in which case the AP2 layer may be formed of the high-resistivity amorphous ferromagnetic alloy. The amorphous alloy is an alloy of... Agent: Thomas R. Berthold

20070188946 - Magnetic sensor and current sensor: A current sensor capable of detecting current magnetic fields generated by a current to be detected with high precision and stability while realizing a compact configuration is provided. The current sensor includes: a conductor generating a current magnetic field in accordance with supplied current to be detected; a magnetoresistive element... Agent: Oliff & Berridge, PLC

20070188945 - Magnetoresistive effect element, magnetic head and magnetic recording/reproducing apparatus: A magnetoresistive effect element includes a fixed magnetization layer; a free magnetization layer; a nonmagnetic spacer layer between the fixed magnetization layer and the free magnetization layer; and an insertion layer disposed on an opposite side of the free magnetization layer from the nonmagnetic spacer layer, wherein the first insulating... Agent: Nixon & Vanderhye, PC

20070188944 - Magnetoresistive head and magnetic storage apparatus: Embodiments in accordance with the present invention provide a Current Perpendicular to the Plane-Giant Magnetoresistive (CPP-GMR) head exhibiting a high magnetoresistance (MR) ratio with a low area-resistance product. A lower shield is made up of a first shield layer/a crystalline reset layer/a second shield layer, and an amorphous material is... Agent: Townsend And Townsend And Crew LLP

20070188943 - Magnetoresistance effect element, method of manufacturing same and magnetic head utilizing same: A magnetoresistance effect element is manufactured in the steps in which a first ferromagnetic layer is formed on a substrate, the first ferromagnetic layer is patterned to form a pinned layer, in shape of strip, having both end portions to which electrode pads are formed, the pinned layer is etched,... Agent: Kenyon & Kenyon LLP

20070188938 - Method and apparatus for providing improved pinning structure for tunneling magnetoresistive sensor: A method and apparatus for providing improved pinning structure for tunneling magnetoresistive sensor is disclosed. A three layer pinned structure is used, wherein the second pinned layer is designed to balance the effects of the first and third pinned layers.... Agent: David W. Lynch Chambliss, Bahner & Stophel

20070188941 - Tunnel mr head formed with partial milled stack: In a magnetic tunnel junction (MTJ) device having a pinned layer and upper and lower free sublayers, to avoid loss in tunnel magnetoresistance, etching or milling of the free sublayer materials is stopped in the lower free sublayer. The upper free sublayer may be softer and thicker than the lower... Agent: Rogitz & Associates

20070188942 - Tunnel mr head with closed-edge laminated free layer: In a tunnel magnetoresistive (TMR) device, free sublayers are separated by an intermediate spacer layer that serves to ensure a uniform circumferential magnetization in the free stack, counterbalancing orange-peel coupling by antiferromagnetic exchange coupling. Thus, a CPP MR device may have a seed stack, a pinned stack on the seed... Agent: Rogitz & Associates

20070188939 - Tunnel mr head with long stripe height sensor stabilized through the shield: In a CPP MR device such as a tunnel magnetoresistive (TMR) device, shoulders that have a magnetic moment that is matched to the magnetic moments of the free layer extend between the free layer and the S2 shield to provide an electrical path from one shoulder, through the shield, to... Agent: Rogitz & Associates

20070188940 - Tunnel mr head with long stripe height stabilized through side-extended bias layer: In a tunnelmagneto resistive (TMR) device, free stack sublayers are separated by an intermediate spacer layer that serves to ensure a uniform circumferential magnetization in the free stack, counterbalancing orange-peel coupling by anti ferromagnetic exchange coupling. On top of the upper free stack sublayer a thin upper anti ferromagnetic layer... Agent: Rogitz & Associates

20070183072 - High-density recording method for hard disk drives and a pre-amplifier circuit suitable for use with same: A magnetic recording method is provided where ternary data is recorded on a magnetic recording medium by forming a first area that corresponds to a first value of the data and in which a first magnetization state is continued at least during the minimum write width. A second area that... Agent: Volentine & Whitt PLLC

20070183080 - Portable electronic device: A memory to store a state identifier showing whether or not to permit reading out an occurrence number of times of disk shifts from a disk storage unit is newly provided so as to intermittently change the identifier from a first state to a second state. When access requests to... Agent: Frishauf, Holtz, Goodman & Chick, PC

20070183082 - Method, apparatus, and storage medium for controlling track seek servo in disk drive, and disk drive using same: Provided are a method, apparatus, and storage medium for controlling a track seek servo in a disk drive. Thus, a transducer is moved to a target track using a transformed Proximate-Time Optimal Servo (PTOS) velocity trajectory in which an acceleration duration is symmetrical to a deceleration duration in a track... Agent: Volentine & Whitt PLLC

20070183070 - Coding method and device for determining absolute angular position: Method for coding at least one datum using three digital signals A, B, C delivered on respectively one channel, in which the third signal C is delivered by a combination of the first two signals A, B in order to form m binary triplets, where m<8. The method provides for... Agent: Bachman & Lapointe, P.C.

20070183071 - Track allocation method of disk drive: Embodiments in accordance with the present invention relate to methods wherein a capacity of a disk drive is increased by partially overwriting adjacent tracks to shorten the track width and collectively updating a data update unit made up of a plurality of tracks, wherein the capacity reduction caused by a... Agent: Townsend And Townsend And Crew LLP

20070183073 - Timing recovery for data storage channels with buffered sectors: A storage channel, e.g., for a disk drive system, may asynchronously sample and buffer an entire sector, and then process the buffered sector to recover timing information. The storage channel may operate in an open-loop and utilize an exhaustive search to determine timing parameters. Alternatively, the storage channel may operative... Agent: Fish & Richardson P.C.

20070183074 - Disk drive defect map encoding scheme: A method for encoding defect locations on a storage medium into compact defect map is described. The method comprises creating a first list which defines a sequence of retrievable portions and non-retrievable portions of the disk or storage medium, compressing this first list of retrievable/non-retrievable portions into a second list... Agent: Powell And Associates

20070183075 - Variable mobile media storage system: Disclosed is a method and apparatus for a variable media tape based storage system for storing, retrieving, and communicating data. The system includes at least one media element having a compatible relationship with one of a plurality of drives for storing and receiving data. The at least one media element... Agent: Spectra Logic C/o Hiscock & Barclay, LLP

20070183078 - Apparatus for controlling space between head and medium: A voltage applying unit applies a voltage to a plurality of capacitors respectively formed in series by the recording medium and a plurality of electrode plates arranged on the head. A space control unit controls a space between the recording medium and the head based on a response of the... Agent: Greer, Burns & Crain

20070183077 - Disc device, disk formatting method, and disk formatting apparatus: A disk device includes a plurality of recording surfaces each of which having a recording area for recording data. An area or a width in a radial direction of an effective area set to be capable of recording the data in the recording area on at least one of the... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070183076 - Disk drive using a disturbance sensor for disturbance frequency-identification and suppression: A magnetic recording disk drive has a disturbance sensor and a disturbance frequency identifier that are used to adjust the frequency of a peak filter as the disturbance frequency changes. The sensor and the frequency identifier are separate from the servo control loop and thus do not rely on the... Agent: Thomas R. Berthold

20070183079 - Method, system, and program for storing data in a storage medium: Provided are a method, system, and article of manufacture for writing data in a tape medium having wraps. A layout of the tape is provided including at least one segment within a full length of first set of wraps for writing user data and at least one segment within a... Agent: Konrad Raynes & Victor, LLP. Attn: Ibm37

20070183081 - Data storage device and defective area management method therefor: Embodiments in accordance with the present invention increase the possibility that a servo track in which servo data is defective may be detected, greatly decreasing the possibility that a write error may occur during use by a user. According to one embodiment of the present invention, a defective area management... Agent: Townsend And Townsend And Crew LLP

20070183083 - Pivoting vertical mast of an accessor in an automated data storage library: A cartridge accessor employs an accessor base, a vertical mast and a gripper mechanism. The accessor base is operable to translate the cartridge accessor in a horizontal direction within the automated data storage library. The vertical mast is pivotally coupled to the accessor base and the a gripper mechanism is... Agent: Frank C. Nicholas Cardinal Law Group

20070183084 - Removable disk media including holographic optical disk stacked in a tape cartridge shell: An automated data storage library employing a media accessor, an optical disk drive and a removable disk media. The media accessor includes a cartridge shell gripper. The optical disk drive includes a tape cartridge slot. The removable disk media includes a tape cartridge shell having a structural configuration operable to... Agent: Frank C. Nicholas Cardinal Law Group

20070183085 - Hermetically sealed head disk assembly and method of sealing with soldering material: A sealed head disk assembly having a base casting that provides attachment points for the major components of the head disk assembly and a cover for enclosing the major components of the head disk assembly. The base casting has a hermetic seal encompassing an outer perimeter of the base casting.... Agent: Wagner, Murabito & Hao LLP

20070183086 - Hermetically sealed head disk assembly and method of sealing with soldering material: A sealed head disk assembly has a base casting for providing attachment points for the major components of the head disk assembly. The base casting has a semi-hermetic seal encompassing an outer perimeter of the base casting and allows the semi-hermetic seal to be juxtaposed to at least one complementary... Agent: Hitachi C/o Wagner Blecher LLP

20070183087 - Hermetically sealed head disk assembly and method of sealing with soldering material: A sealed head disk assembly has a base casting for providing attachment points for the major components of the head disk assembly. The base casting has a hermetic seal encompassing an outer perimeter of the base casting and a semi-hermetic seal inside a perimeter of the hermetic seal, thus allowing... Agent: Wagner, Murabito & Hao LLP

20070183088 - Hermetically sealed head disk assembly and method of sealing with soldering material: A sealed head disk assembly has a cover for enclosing major components of the head disk assembly. The cover has a hermetic seal encompassing an outer perimeter of the cover and a semi-hermetic seal inside a perimeter of the hermetic seal. The hermetic seal and semi-hermetic seal are juxtaposed to... Agent: Wagner, Murabito & Hao LLP

20070183089 - Electrostatic discharge apparatus for hub and spindle assemblies: An electrostatic discharge apparatus for use with a hub and spindle assembly for a disc drive storage system comprising a spindle; a hub rotatably mounted on the spindle; a capsule formed at least in part from an electrically conductive material that can be placed in electrical communication with the hub... Agent: Seagate Technology C/o Mofo Sf

20070183090 - Rotor hub, motor, and recording disk driving device: A rotor hub for use in a motor installed into a recording disk driving device to spin a recording disk includes a convex portion, a disk placing portion around the convex portion, and the relief portion which is a substantially circular concave portion disposed between the convex portion and the... Agent: Nidec Corporation C/o Keating & Bennett, LLP

20070183091 - Read/write head having varying wear regions and methods of manufacture: An exemplary magnetic head structure and method of manufacture is described. In one example, the method includes forming a support surface having a longitudinal width associated with at least one data transducer and a reduced longitudinal width region offset along a lateral direction from the at least one data transducer.... Agent: Morrison & Foerster LLP

20070183092 - Magnetic head having notched first magnetic pole: A multi-step process for notching the P1 pole of the write head element of a magnetic head. In a first step following the fabrication of the P2 pole tip, a layer of protective material is deposited on the approximately vertical side surfaces of the P2 pole tip. Thereafter, a first... Agent: Intellectual Property Law Offices

20070183093 - Protective layer for cmp assisted lift-off process and method of fabrication: A magnetic head is disclosed having a write head with an encapsulated protected pole structure, which includes a P3 pole tip. A protective layer surrounds at least a portion of the P3 pole tip, and an encapsulating material layer surrounds a portion of the protective layer. Also disclosed is a... Agent: Intellectual Property Law Offices

20070183094 - Information recording medium: An information recording medium which is capable of holding a front cover in its closed state even if a large external force is applied. The information recording medium includes a casing body which has tape reels mounted for winding the magnetic tape, a front wall and a lower wall having... Agent: Greenblum & Bernstein, P.L.C

20070183095 - Slider air bearing for mobile drives: Embodiments of the present invention include a head slider for a magnetic disk drive. The head slider comprises a first recess on the air bearing surface of the head slider. The head slider further comprises a second recess on the air bearing surface, wherein the first recess is deeper than... Agent: Hitachi C/o Wagner Blecher LLP

20070183096 - Suspension for magnetic head slider characteristic test: Embodiments in accordance with the present invention provide a magnetic head slider to be easily mounted on or dismounted from a suspension and can hold a magnetic head slider so as not to be removed due to a shock resultant from handling during a characteristic test and a manufacturing process.... Agent: Townsend And Townsend And Crew LLP

20070183097 - Method and apparatus for connecting a micro-actuator to driver arm suspension: A system and method for connecting an actuator to a suspension element is disclosed. The actuator is electrically coupled using a silver paste. The silver paste is further covered by a coating application to provide structural support. A step, attached to either the actuator base or the suspension tongue, provides... Agent: Kenyon & Kenyon LLP

20070183098 - Magneto-resistance effect element and thin-film magnetic head: An MR element has a pinned layer, a spacer layer, and a free layer successively stacked in the order named. The free layer includes a Heusler alloy layer in at least a region thereof adjacent to the spacer layer. An oxide is distributed as sea-islands in the interface between the... Agent: Knobbe Martens Olson & Bear LLP

20070183099 - Methods and apparatus for improved read sensors of the cpp type using a multi-layered seed layer structure having a nitrogenated nickel-tantalum layer: A magnetic head with improved hard magnet properties includes a sensor stack structure of current-perpendicular-to-the-planes (CPP) type formed in a central region between first and second shield layers, and a multi-layered seed layer structure formed in side regions adjacent the central region. The multi-layered structure has a first layer including... Agent: John J. Oskorep, Esq. One Magnificent Mile Center

20070183101 - Magnetoresistance device including diffusion barrier layer: A magnetoresistance device that has a substrate, an underlayer, a magnetoresistance structure, and a diffusion barrier layer is provided. The underlayer is formed on top of the substrate. The magnetoresistance structure is formed on top of the underlayer. The diffusion barrier layer is formed between the underlayer and the magnetoresistance... Agent: Sughrue Mion, PLLC

20070183100 - Magnetic tunnel transistor with thin read gap for head applications: A magnetic tunnel transistor (MTT) for a disk drive read head includes a barrier of TiO disposed between a ferromagnetic collector and a ferromagnetic base for preferentially selecting only “hot” electrons for propagation to the collector.... Agent: Rogitz & Associates

20070177291 - Method of initializing perpendicular magnetic recording medium, perpendicular magnetic recording medium and magnetic recording apparatus: The present invention provides a method of initializing a perpendicular magnetic recording medium in which a magnetic field having a magnetic field strength Hex is applied to a perpendicular magnetic recording medium having a magnetic layer having a coercive force Hc to initialize the magnetic layer, the method comprising the... Agent: Sughrue Mion, PLLC

20070177296 - Servo writer and servo signal writing method: A servo writer for writing a servo signal in a running tape memory medium comprises: a head which is arranged in a vicinity of a running path of the running tape memory medium; and a pair of guides which are disposed adjacent to the head in an upstream and downstream... Agent: Sughrue Mion, PLLC

20070177297 - Apparatus and method for multiple disks stacking and destacking: The present invention provides a disk stack assembly for processing a plurality of disks in a servowriter. The present invention further provides a servowriter system for processing multiple disks.... Agent: Lawrence Y.d. Ho & Associates Pte Ltd

20070177290 - Magnetic transferring apparatus: A magnetic transferring apparatus allows attachment of a first magnet to a first holder. A second magnet is attached to a second holder. The first and second holders are located in a space between first and second magnets. A magnetic disk and a master member are located in a space... Agent: Patrick G. Burns Greer Burns & Crain, Ltd.

20070177292 - Using at least one servo channel to provide timing recovery and timing information to data channels: Provided is a read channel, storage drive, and method to process signals read from a storage medium. At least one data channel including an interpolator and equalizer and a servo channel includes an interpolator. A timing recovery function processes a timing error from the interpolator in the servo channel to... Agent: Konrad Raynes & Victor, LLP. Attn: Ibm37

20070177293 - Method for recording data freshness degrees by tape drive: A method for recording data freshness degrees by a tape drive is disclosed. During the recording of a set of data and a data freshness degree associated with the set of data a tape recording medium, a determination is made as to whether or not a fault occurs during the... Agent: Dillon & Yudell, LLP

20070177294 - Method for solving heat dissipation problems of computer system and modularized computer system for performing the method: A modularized computer system includes multiple independent devices including a mini computer host, a power supply, an optical disk drive, a hard disk drive, and a television signal processor connected mutually. Thus, the heat produced by the mini computer host is easily dissipated by the cooling fan, so that the... Agent: Rosenberg, Klein & Lee

20070177295 - Information processing apparatus having built-in hard disk drive and head retraction processing method of built-in hard disk drive: An information processing apparatus includes a hard disk drive, an acceleration sensor, and a determination section. The hard disk drive is capable of moving a head of the hard disk drive to a data-free landing zone. The acceleration sensor detects acceleration. The determination section obtains a low frequency component from... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20070177298 - Connector mechanism: The invention relates to a connector mechanism, a connector, an electronic device, a garment and a physiological sensor. The connector mechanism comprises a first connector part, which includes a first electrically conductive layer and a first magnetic layer, and a second connector part, which includes a second electrically conductive layer... Agent: Hoffmann & Baron, LLP

20070177299 - Magnetic head and method for production therefor: At least one of lower and upper magnetic cores is composed of magnetic films each of which contains two or more elements of Co, Ni, and Fe, which are formed by electroplating in a plating bath with pH 2 or less, and which have a saturation magnetic flux density of... Agent: Townsend And Townsend And Crew, LLP

20070177302 - Thin-film magnetic head having near-field-light-generating portion with trapezoidal end: A thin-film magnetic head for a heat-assisted magnetic recording which can perform a reliable writing immediately only on a desired track by applying a near-field light to a desired position and range is provided. The head comprises: an electromagnetic coil element for writing data signals, having a pole end reaching... Agent: Buchanan, Ingersoll & Rooney PC

20070177301 - Method to make a perpendicular magnetic recording head with a side write shield: A perpendicular magnetic recording (PMR) head is fabricated with a pole tip shielded laterally by a separated pair of side shields and shielded from above by an upper shield. The side shields are formed by a RIE process using specific gases applied to a shield layer through a masking layer... Agent: Stephen B. Ackerman

20070177300 - Transducer including an element of a transducer and a sidewall in an electrically conductive magnetic layer: A transducer includes a first layer that is selectively deposited in a contact region to form a core, and selectively deposited in a transducer region to form a first element of the transducer. The transducer includes an electrically conductive magnetic deposit. The electrically conductive magnetic deposit forms a sidewall on... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20070177303 - Head cleaning mechanism: A cleaning apparatus for cleaning a media drive transducer head is provided. In one example, the apparatus includes a cleaning member (e.g., a brush having a plurality of bristles) and an actuator assembly operable to move the cleaning member from a position vertically offset from a drive head to a... Agent: Morrison & Foerster LLP

20070177304 - Recording medium cartridge: The recording medium cartridge accommodates a recording medium such as a magnetic tape, a optical and/or magnetic disk, or the like in a cartridge body having an upper half and a lower half. A non-contact type memory device storing information, for example, given when producing the cartridge is provided in... Agent: Sughrue, Mion, Zinn, Macpeak & Seas, PLLC

20070177306 - Flying head slider and recording medium drive: A flying head slider includes a write head element and a read head element mounted on the slider body. A first transformable actuator serves to protrude the write head element toward a recording medium. A second transformable actuator serves to protrude the read head element toward the recording medium. The... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP

20070177305 - Pad slider design for on-slider elgs: One embodiment of the present invention provides a slider including a slider body, a magnetic reader disposed on the slider body, a magnetic writer disposed on the slider body, and an electronic lapping guide disposed on the slider body. The slider also includes a first row of contact pads disposed... Agent: Patterson & Sheridan, L.L.P.

20070177307 - Magnetic head suspension: A magnetic head suspension of the present invention includes a flexure having a magnetic head mounting region, a load beam connected to the flexure and having a dimple at a portion corresponding to the magnetic head mounting region a load-bent portion generating a load for pressing a magnetic head to... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20070177308 - Disk device: According to one embodiment, a disk device includes a box-shaped case, which contains a disk-shaped recording medium, a drive motor which supports and rotates the recording medium, a head which performs information processing for the recording medium, and a head actuator which moves the head with respect to the recording... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20070177309 - Disk device and manufacturing method therefor: According to one embodiment, a disk device includes a case having a bottom wall, a disk-shaped recording medium located in the case, a drive motor which is located in the case and supports and rotates the recording medium, a head which performs information processing for the recording medium, a head... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20070177310 - Magnetoresistive effect element, magnetic head and magnetic reproducing apparatus: A spin valve type magnetoresistive effect element for vertical electric conduction includes a magnetoresistive effect film in which a resistance adjustment layer made of a material containing conductive carriers not more than 1022/cm3 is inserted. Thus the resistance value of a portion in change of spin-relied conduction is raised to... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.