Dynamic magnetic information storage or retrieval inventions 07/07

20070171567 - Hard disk drive: A hard disk drive includes a disk pack having at least one disk for recording and/or storing data and a spindle motor that support and rotates the disk, a base to which the disk pack is mounted, a cover that covers an upper surface of the base, and a respective... Agent: Volentine & Whitt PLLC

20070171559 - Information storage medium, information reproducing apparatus, and information reproducing method: According to one embodiment, an information storage medium, and the program comprises referring to a manifest from a playlist that manages playback presentation of a playback presentation object, referring to one of a markup and a script from the manifest, monitoring defining of a name corresponding to an event in... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070171560 - Magnetic disk devices with data recording areas set separately for each device: The present invention relates to a magnetic disk device and provides a magnetic disk device in which data recording areas are separately set based on the inner recording boundary or outer recording boundary of the head measured for each magnetic disk device. When the recording linear (angular) density that has... Agent: Greer, Burns & Crain

20070171561 - Data storage cartridge with worm write-protection: A data storage cartridge is equipped with write-once-read-many (WORM) write-protection. The cartridge is compatible with an existing cartridge docking station with a modification to the control logic of the docking station's control module. Specifically, the control logic is altered to recognize that sensing magnets with both sensors requires the docking... Agent: Attention: Eric D. Levinson Imation Corp.

20070171562 - Disk array apparatus and disk-array control method: A failure predicting unit predicts a failure in a hard disk device that forms a disk array. A data transferring unit transfers data from a failure-predicted hard disk device for which the failure is predicted by the failure predicting unit to a spare disk. A data deleting unit deletes the... Agent: Staas & Halsey LLP

20070171563 - System and method for adjusting pressure sensitivity in sealed disk drive to account for temperature-induced changes in fly height: The pressure sensitivity of an ABS in a sealed drive is established such that a change in head-disk clearance due to temperature changes inside the drive housing is balanced by clearance changes due to the resulting pressure change. In this manner, the clearance between the head and disk is made... Agent: Rogitz & Associates

20070171564 - Disk drive servo: A disk drive includes a disk having a first servo burst written with advancing phase as a radial distance on the disk increases, and a second servo burst written with decreasing phase as a radial distance on the disk increases, and a transducing head, and a read channel. The disk... Agent: Schwegman, Lundberg, Woessner & Kluth, P.A.

20070171565 - Synchronous servo channel for longitudinal position detection and position error signal generation in tape drive systems: A fully synchronous longitudinal position (LPOS) detection system is provided for improving the reliability of servo channels in tape systems. The system is based on the interpolation of the servo channel output signal, which is sampled by an analog-to-digital converter (ADC) at a fixed sampling rate, using a clock at... Agent: Law Office Of Dan Shifrin, PC - Ibm

20070171566 - Signal reproducing method and storage apparatus: A signal reproducing method reproduces servo information recorded on a recording medium by use of a head. A current calculation related to a current and an observer calculation related to a position and a velocity of the head are made based on reproduced servo information, and a current value for... Agent: Greer, Burns & Crain

20070171568 - Damped disc drive assembly, and method for damping disc drive assembly: A disc drive assembly is provided including a head disc assembly, a housing having a base and a cover cooperating with one another to form a chamber in which the head disc assembly is housed, and a damper structure in operative association with the housing for dampening noise and/or vibration... Agent: Berenato, White & Stavish, LLC

20070171569 - System and method for reducing corrosion in a fluid dynamic bearing: A system and method for reducing corrosion in a fluid dynamic bearing is disclosed. In one embodiment, a fluid dynamic bearing comprising a rotor portion and a stator portion is formed. In addition, a corrosion inhibitor containing lubricating fluid is provided between the rotor portion and the stator portion of... Agent: Wagner, Murabito & Hao LLP

20070171570 - Mtj device with partially milled anti-parallel coupled bottom free layer: In a magnetic tunnel junction (MTJ) device having a pinned layer and upper and lower antiparallel-coupled free sublayers, to avoid loss in tunnel magnetoresistance, etching or milling of the free sublayer layer materials is stopped in the lower free sublayer. The total thickness of the free sublayers may be large... Agent: Rogitz & Associates

20070171571 - Side reading reduced gmr for high track density: As track density requirements for disk drives have grown more aggressive, GMR devices have been pushed to narrower track widths to match the track pitch of the drive width. Narrower track widths degrade stability, cause amplitude loss, due to the field originating from the hard bias structure, and side reading.... Agent: Saile Ackerman LLC

20070171572 - Side reading reduced gmr for high track density: As track density requirements for disk drives have grown more aggressive, GMR devices have been pushed to narrower track widths to match the track pitch of the drive width. Narrower track widths degrade stability, cause amplitude loss, due to the field originating from the hard bias structure, and side reading.... Agent: Saile Ackerman LLC

20070171573 - Magnetic recording medium: Provided is a magnetic recording medium affording both reduced head abrasion and good durability in high-density magnetic recording and reproduction systems employing MR heads as reproduction heads. The magnetic recording medium comprises a nonmagnetic layer comprising a nonmagnetic powder and a binder and a magnetic layer comprising a ferromagnetic powder,... Agent: Sughrue Mion, PLLC

20070171575 - Perpendicular magnetic recording medium with controlled damping property of soft magnetic underlayer: A perpendicular magnetic recording medium is provided. The perpendicular magnetic recording medium includes a soft magnetic underlayer, a recording layer formed on the soft magnetic underlayer, and a damping control layer which controls a damping constant of the soft magnetic underlayer.... Agent: Sughrue Mion, PLLC

20070171574 - Data storage diskette housing having recessed area: A data storage diskette is disclosed. The diskette includes a housing and a media disk enclosed within the housing. The housing includes a base and a cover mated to the base. In this regard, the base defines an exterior surface that includes a base shutter zone that defines a base... Agent: Attention: Eric D. Levinson Imation Corp.

20070171576 - Suspension and prober designs for recording head testing: In testing HGAs used in a hard disk drive, to facilitate contact between a test prober and a HGA termination pad, read head termination pads may be provided with extensions along the tail of the HGA, and/or a sawtooth-shaped prober may be used.... Agent: Rogitz & Associates

20070171577 - Tape drive actuator using a four-bar flexure and planar coil system: A high-frequency tape head actuator has a positioning coil mounted close to a tape read/write head and between two thin flexures, which are flexible in a plane of flexion but stiff in other planes. One end of each flexure is attached to a fine positioner that holds the coil and... Agent: Morrison & Foerster LLP

20070171578 - Head stack assembly, manufacturing method thereof, and disk drive unit: A HSA for a disk drive unit includes at least one drive arms, each of which has a mounting hole formed thereon; at least one HGAs, each of which connecting with one of the at least one drive arms; a fantail spacer having a mounting hole; and a bearing assembly;... Agent: Nixon & Vanderhye, PC

20070171581 - System, method, and apparatus for magnetic sensor formed by multiple depositions and sensor layers of varying geometry: Formation of the magnetic sensor layers of a magnetic sensor are separated into at least two depositions to reduce the dimension of the sensor. The free layer portion of the sensor is deposited at a different process step than the pinned layer portion. The top of the free layer stack... Agent: Bracewell & Giuliani LLP

20070171579 - Tunnel type magnetic detection element in which crystal orientation of magnetic layer and barrier layer is selected and manufacturing method thereof: Described herein is a tunnel type magnetic detection element and a manufacturing method thereof. In the tunnel type magnetic detection element, an enhance layer included in a free magnetic layer disposed on an insulating barrier layer contacts the insulating barrier layer, which may be made of an oxide such as... Agent: Brinks Hofer Gilson & Lione

20070171580 - Tunnel type magnetic detection element in which fe composition of top/bottom surface of insulating barrier layer is adjusted and manufacturing method thereof: Described herein is a tunnel type magnetic detection element and a manufacturing method thereof. In the tunnel type magnetic detection element, an enhance layer included in a free magnetic layer (upper magnetic layer) disposed on an insulating barrier layer contacts the insulating barrier layer, which may be made of an... Agent: Brinks Hofer Gilson & Lione

20070165319 - Address mark detection with error threshold that varies with timing jitter: An apparatus includes an address mark detector having an address mark output. The address mark output is indicated as erroneous if errors in a detected address mark exceed an error threshold function. The error function has a variation as a function of a difference between a detected address mark time... Agent: Westman Champlin & Kelly, P.A.

20070165321 - Library apparatus, cartridge type sensor, and method for positioning cartridge type sensor: A library apparatus includes a cartridge type sensor and a robot. The cartridge type sensor includes a cartridge having the same shape as that of each recording medium stored in a cell, an optical reader for reading a medium identification code, and a medium detector for detecting the presence or... Agent: Staas & Halsey LLP

20070165322 - Method and apparatus regulating saturation water vapor pressure in a hard disk drive: Method operating hard disk drive (HDD) by receiving temperature and pressure readings from sensors, determining condensation danger from reading and asserting heat-up control to stimulate a thermoelectric device to move heat from exterior to interior thermal zone of HDD. Apparatus implementing method including embedded circuit, embedded processor in embedded circuit,... Agent: Gregory Smith & Associates

20070165325 - Servo positioning adjustment: An apparatus and associated method for observing an analog position signal of a control object in relation to positional indicia, recalling a previously stored runout correction value associated with the positional indicia, and calculating a corrected position signal for the control object in relation to the position signal and the... Agent: Fellers, Snider, Blankenship, Bailey &tippens

20070165318 - Testing storage system electronics using loopback: A system includes a hard disk controller (HDC) module that controls a hard disk and a read channel (RC) device that communicates with the HDC module via a read bus and a write bus. The RC device includes a loopback circuit that selectively loops back the write bus to the... Agent: Harness, Dickey & Pierce P.L.C

20070165320 - Reverse write current preshoot: Methods of generating a write current in response to a write command include generating a reverse preshoot write current having a polarity opposite to a polarity for generating a magnetic transition corresponding to the write command, and then generating a write current to effect the magnetic transition corresponding to the... Agent: Myers Bigel Sibley & Sajovec

20070165323 - Method and apparatus for estimating and controlling the flying height of a read-write head in a hard disk drive: Method estimating flying height of read-write head in slider near rotating disk surface. Sensing leakage current between slider and spindle motor to create potential difference measurement. Converting potential difference measurement to create estimate of flying height. Method controlling flying height using method for estimating by adjusting vertical actuation signal to... Agent: Gregory Smith & Associates

20070165324 - Method and apparatus for sensing and controlling the flying height of a read-write head in a hard disk drive: A slider, flexure finger, head suspension assembly, head gimbal assembly, main flex circuit, actuator assembly, spindle motor, embedded circuit, and hard disk drive using and/or supporting method of estimating flying height of read-write head near rotating disk surface. Method senses leakage current between slider and spindle motor to create potential... Agent: Gregory Smith & Associates

20070165326 - System and method for deconvolution of multiple data tracks: A system and method for reading a magnetic medium having a data band thereon, the data band comprising a plurality of written data tracks and in some embodiments at least one alignment band. The system in one embodiment includes a plurality of adjacent readers for simultaneously reading the data tracks,... Agent: Zilka-kotab, PC

20070165327 - Apparatus to fix a disk and a method thereof: A disk fixing apparatus to fix a disk onto a spindle motor in a hard disk drive (HDD). The apparatus includes a coupling hole, in which a coupling portion to fix the disk fixing apparatus onto the spindle motor is inserted, on a center portion of the disk fixing apparatus,... Agent: Stanzione & Kim, LLP

20070165328 - Acoustic damping pad that reduces deflection of a circuit board: A acoustic damping pad is provided. The acoustic damping pad includes a first surface and an opposing second surface that are defined by a periphery. A first set of perforations extend between the first surface and the second surface of the acoustic damping pad. Each adjacent perforation in the first... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20070165329 - Magnetic head structure with enlarged insulating layer: A magnetic head structure has a coil and a magnetic pole allowing a magnetic flux generated by the coil to be transmitted therethrough and forming a magnetic gap. An insulating layer surrounds the coil, and a protective layer covers the insulating layer and the magnetic pole. The insulating layer has... Agent: Greer, Burns & Crain

20070165330 - Soft magnetic film and method of manufacturing same, thin-film magnetic head and method of manufacturing same, head arm assembly and magnetic disk drive: A pole layer of a magnetic head incorporates a soft magnetic film made of an iron-cobalt-nickel-base alloy. When the total of the iron, cobalt and nickel contents of the soft magnetic film is assumed as 100 weight percent, the iron content of the soft magnetic film is within a range... Agent: Oliff & Berridge, PLC

20070165331 - Method and apparatus for increasing storage capacity: Transducers are oriented differently to address the skew phenomenon. This enables a greater area of the medium to be utilized for data storage, thereby increasing the storage capacity of the device implementing embodiments of the present invention.... Agent: Nixon & Vanderhye, PC

20070165332 - Actuation device and method for high density hard disk drive head: A disk drive apparatus. The apparatus has a first drive device and a support member coupled to the first drive device. The support member has a tongue portion and a gimbal portion. The tongue portion is coupled the gimbal portion. A fixed drive device is formed within a first portion... Agent: Townsend And Townsend And Crew, LLP

20070165333 - Method and apparatus using embedded sensor in a piezoelectric micro-actuator in a hard disk drive: A piezoelectric sensor-actuator, including a piezoelectric sensor bonded through non-conductive adhesive to a piezoelectric actuator to determine the pressure and/or temperature near the coupled slider. The piezoelectric actuator contributes to slider positioning. The piezoelectric sensor determines the experienced stress-strain. The hard disk drive uses the piezoelectric sensor-actuator creates a stress-strain... Agent: Gregory Smith & Associates

20070165334 - Magnetic field detector, current detector, position detector and rotation detector employing it: A magnetic field detector having a reference magnetoresistive element and a magnetic field detecting magnetoresistive element. The reference magnetoresistive element and the magnetic field detecting magnetoresistive element each has a stack structure including an antiferromagnetic layer, a fixed layer of a ferromagnetic material with the direction of magnetization fixed by... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070165335 - Gmr head design that suppresses tribocharge during its assembly: A method for preventing electrostatic discharge (ESD) damage in the head-suspension assembly (HSA) construction process. The method includes the use of a novel GMR magnetic recording head on a conductive slider substrate, the GMR head being electrically connected to the substrate and its conducting leads having balanced resistances between the... Agent: Saile Ackerman LLC

20070165336 - Magnetic detecting device having laminated seed layer: A magnetic detecting device is provided. The magnetic detecting device includes a magnetoresistive effect part having a fixed magnetic layer, and a free magnetic layer which faces the fixed magnetic layer with a nonmagnetic material layer therebetween and which varies in magnetization by an external magnetic field. A seed layer... Agent: Brinks Hofer Gilson & Lione

20070165339 - Control and manipulation of pinned layer remanence of a platinum manganese based bottom spin valve: Methods and apparatus provide a magnetic head that includes a magnetoresistive read sensor. A remanence of a pinned layer within the read sensor can be improved without substantially altering other physical or magnetic properties of the read sensor. Changing a sputtering gas flow rate during deposition of an antiferromagnetic layer... Agent: Patterson & Sheridan, L.L.P.

20070165338 - Tunnel-type magnetic detecting device having laminated seed layer: A tunnel-type magnetic detecting device is provided. The tunnel-type magnetic detecting device is capable of stably reducing the surface roughness of an insulating barrier layer, and capable of properly improving an MR effect typified by a resistance changing rate. A seed layer is formed in a laminated structure of an... Agent: Brinks Hofer Gilson & Lione

20070165337 - Tunnel-type magnetic detecting element and method of manufacturing the same: A tunnel-type magnetic detecting element is provided. The tunnel-type magnetic detecting element includes a first ferromagnetic layer; an insulating barrier layer; and a second ferromagnetic layer. The first ferromagnetic layer, the second ferromagnetic layer, or both have a Heusler alloy layer contacting the insulating barrier layer. Equivalent planes represented by... Agent: Brinks Hofer Gilson & Lione

20070159709 - Apparatus and method compensating mechanical tolerance of brushless direct current motor and related disk drive: Provided are an apparatus and method for controlling a motor which compensates for a mechanical tolerance of the motor in a case where a feedback sampling frequency increases in order to more precisely control a brushless DC motor. The apparatus for compensating the mechanical tolerance of the brushless DC motor... Agent: Volentine Francos, & Whitt PLLC

20070159708 - Method for preventing data loss in a hard disk drive by projecting reduction in helium concentration using insitu non-repeatable runout: A method for preventing data loss in a hard disk drive by projecting reduction in gas concentration using insitu non-repeatable runout is disclosed. The method includes using servo tracking error to obtain a measured value of insitu non-repeatable runout (NRRO) for the hard disk drive, the hard disk drive having... Agent: Wagner, Murabito & Hao LLP

20070159712 - Electronic drop protection system of external hard-disk box: The present invention discloses an electronic drop protection system of external hard-disk box that comprises a first tilt sensor for sensing tilt in a first direction, a second tilt sensor for sensing tilt in a second direction, a external interface for connecting external system, a hard-disk, and a hard-disk bridge... Agent: Wpat, PC

20070159710 - Hard disk drive with external sensor interface, system for use thereof and method: A hard disk drive, its use and production are described. A read/write disk stores digital data. A spindle motor supports the read/write disk for controlled rotation thereof. A head arrangement moves to selectively access the read/write disk in a data access mode and moves to a parked position. A dedicated... Agent: Pritzkau Patent Group, LLC

20070159711 - Method and apparatus for increasing storage capacity of a hard disk drive: A method and apparatus for improving the capacity of a hard disk drive is provided. In one embodiment, a portion of timing information is written to a first disk prior to coupling the first disk with a hard disk drive. The first disk is then coupled with the hard disk... Agent: Wagner, Murabito & Hao LLP Third Floor

20070159713 - Preconditioning an elastomeric stop member for use as a reference position: An apparatus and associated method for preconditioning an elastomeric stop member to create a stabilized reference position for a moveable member by repetitively biasing the moveable member against the stop member and using the stabilized reference position to initiate a writing of servo data by the moveable member to a... Agent: Fellers, Snider, Blankenship, Bailey & Tippens

20070159714 - Storage apparatus with protection function and protection system of storage apparatus: A storage apparatus having protection function and a protection system of the storage apparatus are disclosed. The storage apparatus having protection function comprises a storage apparatus main body, a read/write component, an acceleration sensor and a controller. The read/write component can perform data read/write action to the storage apparatus main... Agent: Rosenberg, Klein & Lee

20070159715 - Device for handling data media in a storage device: A robotic unit with a picker (18) serves for handling data media in a storage device. The robotic unit can be traversed with a base plate (24) on a guide bar (16). On the base plate (24) a rotary plate (28) is disposed which can be turned about a vertical... Agent: Baker Botts L.L.P. Patent Department

20070159716 - Method and system for reduction of off-track write errors in disk drives: In an embodiment of the present invention, at least one mechanical fastener is used to mount a voice coil magnet assembly of a hard disk drive on a housing of the hard disk drive. A layer of a material having a low friction coefficient is disposed between the housing and... Agent: Wagner, Murabito & Hao LLP

20070159717 - Hard-disk drive device: In a low-profile disk drive device, the hard-disk carrying face of the spindle motor hub is finished to leave a spiral-patterned cutting track. Leaving the spiral-patterned cutting track increases the roughness of the carrying face, but seen in terms of the cutting-track hill portions themselves the surface unevenness is reduced.... Agent: Judge & MurakamiIPAssociates

20070159718 - Heat-assisted magnetic recording head and method of manufacturing the same: A heat-assisted magnetic recording head (HAMR) head includes a magnetic recording head including a recording pole for applying a magnetic recording field on a magnetic recording medium and a return pole magnetically connected to the recording pole to form a magnetic path, a light source for emitting light, and an... Agent: Sughrue Mion, PLLC

20070159719 - Thin film magnetic head and method for manufacturing the same: A magnetic head has an opposite face opposite to a magnetic disk, a main pole having a distal end face and an inclined face exposed to the opposite face, and a shield yoke extended substantially facing the opposite face. An end face on which the shield yoke is opposite to... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070159720 - Heat assisted magnetic recording head and method of manufacturing the same: A heat assisted magnetic recording (HAMR) head and manufacturing method are provided. The HAMR head is mounted on a slider having an air-bearing surface (ABS) and includes a substrate; a recording unit formed on the substrate and having a stepped end; a waveguide located in a space formed by the... Agent: Sughrue Mion, PLLC

20070159721 - Method of designing patterned magnetic recording medium and patterned magnetic recording medium: A method of designing a patterned magnetic recording medium including a magnetic film with perpendicular magnetic anisotropy which is patterned into dots form includes steps of setting values to dot pattern periods Px and Py, a thickness “t”, a thermal stability factor Kn, a minimum inter-dot spacing S0, and a... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070159722 - Magnetic recording medium and magnetic recording cassette: A magnetic recording medium comprising a non-magnetic support, at least one primer layer formed on one surface of the non-magnetic support, comprising a non-magnetic powder and a binder resin, at least one magnetic layer formed on the primer layer, comprising a magnetic powder and a binder resin, and a back... Agent: Birch Stewart Kolasch & Birch

20070159723 - Assembly, apparatus and method for fabricating a structural element of a hard disk drive air bearing: An assembly, apparatus and method for fabricating a structural element of a hard disk drive air bearing. The method and apparatus provide an improved protective layer, an improved structural element consisting of a single layer of structural material, and a method consisting of applying the improved protective layer, applying a... Agent: Wagner, Murabito & Hao LLP

20070159724 - Air bearing surface with shallow center channel: An air bearing surface (ABS) for a head assembly for a data storage device is described. The ABS includes a member, comprising a first extended region and a second extended region, wherein these two regions define a channel. This channel is open to the leading edge (LE) of the ABS,... Agent: Wagner, Murabito & Hao LLP Third Floor

20070159725 - Thermally insulated suspension load beam: A suspension load beam for use in supporting a transducer head in a data storage system includes a front beam section, a rear beam section, and a middle beam section. The front beam section is configured to connect to a slider assembly carrying a transducer head. The rear beam section... Agent: David K. Lucente Seagate Technology LLC

20070159726 - Hard disk drive, suspension assembly of actuator of hard disk drive, and method of operation of hard disk drive: A suspension assembly of an actuator of a hard disk drive prevents collisions with a data storage disk of the drive. The suspension assembly includes a load beam, a bracket having a rear end at which the bracket is coupled to the load beam and a flexure, a slider that... Agent: Volentine Francos, & Whitt PLLC

20070159727 - Method and system for utilizing flexible members in a head gimbal assembly to reduce impact of operational disturbances of slider flying height: A method and system for utilizing flexible members to reduce an operational disturbance between a slider and a flexure nose portion of a head gimbal assembly is disclosed. The method provides a slider coupled with a gimbal structure of the head gimbal assembly, the slider having a read/write head element... Agent: Wagner, Murabito & Hao LLP

20070159728 - Rotary actuator motor for disk drive: A rotary actuator motor is provided including a stationary coil section and a rotating magnet. The magnet is incorporated with the pivot bearing assembly, and the coil section is aligned with the magnet along an axis of rotation of the actuator. The magnet fully encircles the axis of rotation. The... Agent: Sheridan Ross PC

20070159729 - Head slider for hard disk drive: A head slider for a hard disk drive is disclosed. The slider includes an operation device associated with a read/write head and adapted to change the flying height between the read/write head and a disk in relation to temperature. The operation device may be formed from a material that expands... Agent: Volentine Francos, & Whitt PLLC

20070159730 - Gmr head design that suppresses tribocharge during its assembly: A method for preventing electrostatic discharge (ESD) damage in the head-suspension assembly (HSA) construction process. The method includes the use of a novel GMR magnetic recording head on a conductive slider substrate, the GMR head being electrically connected to the substrate and its conducting leads having balanced resistances between the... Agent: Saile Ackerman LLC

20070159731 - Gmr head design that suppresses tribocharge during its assembly: A method for preventing electrostatic discharge (ESD) damage in the head-suspension assembly (HSA) construction process. The method uses a novel GMR magnetic recording head on a conductive slider substrate, the GMR head being electrically connected to the substrate and its conducting leads having balanced resistances between the leads and the... Agent: Saile Ackerman LLC

20070159732 - Spin valve head for ultra-high recording density application: A bottom spin-valve GMR sensor has been fabricated that has ultra-thin layers of high density and smoothness. In addition, these layers are inherently furnished with sub-monolayer thick oxygen surfactant layers. The sensor is fabricated using a method in which the layers are sputtered in a mixture of Ar and O2.... Agent: Saile Ackerman LLC

20070159733 - Magnetoresistive effect element and manufacturing method thereof, and magnetic head, magnetic reproducing apparatus, and magnetic memory using the same: A magnetoresistive effect element includes a magnetoresistive effect film including a magnetization pinned layer, a magnetization free layer, and an intermediate layer interposed therebetween and having a magnetic region and a nonmagnetic region whose electrical resistance is higher than the magnetic region. A sense current is passed to the magnetoresistive... Agent: Nixon & Vanderhye, PC

20070159734 - Spin transfer magnetic element having low saturation magnetization free layers: A method and system for providing a magnetic element that can be used in a magnetic memory is disclosed. The magnetic element includes pinned, nonmagnetic spacer, and free layers. The spacer layer resides between the pinned and free layers. The free layer can be switched using spin transfer when a... Agent: Strategic Patent Group, P.C.

20070159735 - Magnetic tunnel junction sensor with moveable cladding: Methods (300, 400) and apparatus (46, 416, 470) are provided for sensing physical parameters. The apparatus (46, 416, 470) comprises a magnetic tunnel junction (MTJ) (32, 432), a magnetic field source (MFS) (34, 445, 476) whose magnetic field (35) overlaps the MTJ (32, 432) and a moveable magnetic cladding element... Agent: Ingrassia, Fisher & Lorenz, P.C.

20070153409 - Magnetic head for recording/reproduction, magnetic recording medium, and recording/reproduction apparatus: A magnetic recording medium constructed as a discrete track-type medium. The magnetic recording medium is constructed so that a track width of data recording tracks is equal to or smaller than a width produced by subtracting twice an off-track width of a magnetic head with respect to the data recording... Agent: Greenblum & Bernstein, P.L.C

20070153410 - Degaussing for write head: A write head degaussing circuit and methodology configured to end the degaussing signal a selectable percentage short of the tapered degaussing waveform, starting the degaussing of the write head current Iw at a percentage less than Iw, removing any overshoot of the degaussing signal, and any combination of the above.... Agent: Texas Instruments Incorporated

20070153411 - System and method for worm magnetic recording: WORM safeguards are provided in a magnetic disk drive in which the disks are pre-magnetized or pre-recorded such that all magnetic domains on each recording surface are completely aligned pointing in the same direction. A special write head which can magnetically write only in the direction opposite to the pre-magnetization... Agent: Rogitz & Associates

20070153412 - Disk storage device and control method for the same: Embodiments in accordance with the present invention provide a disk storage device and a control method for the disk storage device, which are capable of precluding an off-track write resulted from stick-slip caused by thermal distortion. A magnetic disk device is provided with a magnetic disk, a head that makes... Agent: Townsend And Townsend And Crew LLP

20070153413 - Active head fault detection scheme: A system and method of the companion chip monitoring the active head chip over the conventional 4 wire structure, including when the active head chip goes into a sleep state. Advantageously, the companion chip remains operational and detects changes of the voltage on the DX and DY line, even when... Agent: Texas Instruments Incorporated

20070153415 - Constrained-damped boundary apparatus for reduction of hdd flex cable induced settle dynamics: A flex cable assembly has a flex cable with at least one distal end. At least one clamping device is coupled to at least one distal end, wherein at least one of the clamping device allows coupling to an actuator assembly and/or a base casting.... Agent: Wagner, Murabito & Hao LLP

20070153414 - External cover for controlling the temperature of an internal thermal zone of a hard disk drive: External cover for hard disk drive with internal thermal zone, including transfer interface to internal thermal zone. Disk cover and/or disk base serving as external cover. Thermoelectric device providing heat transfers across transfer interface to exterior, to warm and cool internal thermal zone. Thermal controller providing driving signal to thermoelectric... Agent: Gregory Smith & Associates

20070153416 - Aerodynamic diverter integrated with a diffuser and a contraction in a bypass channel for a disk storage device: A device streamlines air flow inside a hard disk drive with a stationary afterbody that is located adjacent to each of the disks. A diverter portion of the device enhances the volumetric flow of air through a diffuser and a contraction. The overall function of the device effectively expands the... Agent: Bracewell & Giuliani LLP

20070153417 - Heat-assisted magnetic recording head: A heat-assisted magnetic recording head mounted on an end of a slider having an Air Bearing Surface (“ABS”) for recording data on a recording medium. The heat-assisted magnetic recording head includes a magnetic path forming unit that generates a magnetic field for recording the data, a light source that emits... Agent: Sughrue Mion, PLLC

20070153418 - Magnetic recording head and fabrication process: Disclosed are a thin-film magnetic recording head suitable for high density recording and its fabrication method elaborated to avoid corrosion of the main pole section of the head. A non-magnetic metal layer is formed on the top of the main pole.... Agent: Stanley P. Fisher Reed Smith LLP

20070153419 - Perpendicular magnetic record medium and magnetic storage system: Embodiments in accordance with the invention realize a perpendicular magnetic record medium with a high media S/N and excellent corrosion resistance. In a perpendicular magnetic record medium in accordance with an embodiment of the present invention prepared by forming an adhesion layer, an underlayer, a seed layer, an intermediate layer,... Agent: Townsend And Townsend And Crew LLP

20070153420 - Magnetic head unit capable of suppressing variation in floating distance from recording medium due to variation in air density of environment: A magnetic head unit is provided. The magnetic head unit includes a slider with a portion opposed to a recording medium. A pressing portion applies a pressing force on a recording medium and a magnetic function part installed in the trailing side of the slider. A first negative pressure generating... Agent: Brinks Hofer Gilson & Lione

20070153421 - Magnetic head slider material, magnetic head slider, and method of manufacturing magnetic head slider material: The magnetic head slider material of the present invention is a magnetic head slider material made of a sintered body containing alumina, titanium carbide, and carbon; wherein a titanium carbide crystal grain has an average crystal grain size greater than that of an alumina crystal grain in the sintered body.... Agent: Oliff & Berridge, PLC

20070153422 - Head slider, hard disk drive including the same, and method of floating the same: A head slider and a hard disk drive (HDD) including the head slider, the head slider including an air bearing surface (ABS) protruding from a disk facing surface of the head slider toward the disk, a shallow recess (SR) retreated behind the ABS, and a cavity recess (CR) retreated behind... Agent: Stanzione & Kim, LLP

20070153423 - Substrate material for an hdd suspension: There is provided a substrate material, for an HDD suspension, which has excellent adhesion between a stainless steel foil and an insulating resin layer and maintains high etching performance by preventing metal components in the stainless steel from diffusing into the insulating resin layer. The substrate material for an HDD... Agent: Kenyon & Kenyon LLP

20070153424 - Method and apparatus controlling dual heat transfers for internal thermal zone of a hard disk drive: Method and apparatus (thermal controller) for controlling a thermoelectric device to affect the temperature of an internal thermal zone in a hard disk drive to enable a first heat transfer from an internal heat transfer interface included in a thermal interface to an exterior heat transfer interface thermally coupling to... Agent: Gregory Smith & Associates

20070153425 - Thermoelectric device providing dual heat transfers for internal thermal zone in a hard disk drive: The invention includes a thermoelectric device, preferably including an electrical contact pair providing enabling power for a first heat transfer from an internal heat transfer interface to the exterior heat transfer interface, and a second heat transfer from the exterior heat transfer interface to the internal heat transfer interface. The... Agent: Gregory Smith & Associates

20070153426 - Recording disk drive capable of suppressing vibration of flexible printed circuit board: A fixing member is spaced from a head actuator by a predetermined distance. A flexible printed circuit board extends at least from the head actuator to the fixing member. The flexible printed circuit board is superposed on the surface of the fixing member. A viscoelastic layer and a protecting layer... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP

20070153427 - Recording disk drive capable of suppressing vibration of flexible printed circuit board: A fixing member is spaced from a head actuator by a predetermined distance. A flexible printed circuit board extends at least from the head actuator to the fixing member. The flexible printed circuit board is superposed on the surface of the fixing member. A viscoelastic layer and a protecting layer... Agent: Armstrong, Kratz, Quintos, Hanson & Brooks, LLP

20070153430 - Micro actuator and data storage apparatus employing the same: A micro actuator having separated stages and a data storage apparatus employing the same are provided. The micro actuator includes: a supporting unit; stages that are elastically supported by the supporting unit, each stage having a mounting surface where a target driven body is mounted thereon, and arranged adjacent to... Agent: Sughrue Mion, PLLC

20070153429 - Head gimbal assembly and disk drive unit with the same: A HGA of the present invention includes a slider; a micro-actuator comprising two thin film PZT pieces to define a notch; a suspension to load the slider and the micro-actuator. The suspension comprises: a flexure having an actuator loading portion with a slot corresponding to the notch of the micro-actuator,... Agent: Nixon & Vanderhye, PC

20070153428 - Rotational micro-actuator and manufacturing method thereof: A head gimbal assembly includes a micro-actuator, a slider, and a suspension that supports the micro-actuator and the slider. The micro-actuator includes a metal frame including a top support to support the slider, a bottom support to connect to the suspension, and a pair of side arms that interconnect the... Agent: Nixon & Vanderhye, PC

20070153431 - Thin film magnetic head: A wire gap film is formed on a flat coplanar surface formed on a bottom pole by a bottom track pole and a thin film coil, first and second magnetic material films constituting a top pole are formed on a flat surface of the thin film coil, and the first... Agent: Oliff & Berridge, PLC

20070153432 - Magnetic head: A magnetic head is provided, which includes a magnetoresistive effect element having a pinned layer and a free layer and can sufficiently suppress noise induced by spin transfer even for high current density. The magnetic head includes the magnetoresistive effect element which comprises: a first pinned layer; a first spacer... Agent: Oliff & Berridge, PLC