Dynamic magnetic information storage or retrieval inventions 11/08

20080291562 - Recording method for recording data on a recording medium: To solve the above problems, the present invention can record data in a management area in units smaller than ordinary units for recorded data to suitably record information in a limited management area and thereby efficiently use the user data area. At that time, the present invention simplifies interleave processing... Agent: Mcdermott Will & Emery LLP

20080291565 - Control apparatus, storage apparatus, and writing control method: A control apparatus detects positional information of a head performing writing processing every predetermined time interval, and computes next-sample projected positional information of the head based on the difference between the positional information detected the previous time and the positional information detected the current time, and the current detected positional... Agent: Greer, Burns & Crain

20080291564 - Detecting head-disk contact during off-track operations: A disk drive that can detect contact between a head and a disk during an off-track operation such as a seek routine, a ramp load or a head take-off. The disk drive includes a circuit that causes the head to move across the disk in a seek routine. A head... Agent: Irell & Manella LLP

20080291566 - Device select system for multi-device electronic system: In one general embodiment, a system includes a first device on a first substrate; a second device on a second substrate; and a device select system coupled to the first and second devices. The device select system includes: a first portion having an array of first electrical contacts; a second... Agent: Zilka-kotab, PC- Ibm

20080291563 - Torsion compensation coil for voice coil motor of disk drive device, and method of making the same: Certain example embodiments relate to torsion compensation coils that cooperate with primary coils in voice coil motors of disk drive devices, and methods of making the same. In certain example embodiments, a voice coil motor is provided which may include a single external magnet. A primary coil may be located... Agent: Nixon & Vanderhye, PC

20080291567 - Post-assembly head/disk offset adjuster: A post-assembly head/disk offset adjuster is disclosed. One embodiment provides a housing and at least one disk coupled with the housing. In addition, an adjustable pivot plate is coupled with the housing such that access to at least one adjustment point of the adjustable pivot plate is provided regardless of... Agent: Hitachi C/o Wagner Blecher LLP

20080291568 - Magnetic disk apparatus and method for controlling magnetic head: A magnetic disk apparatus includes: a driving unit; a position error feedback control system; and a velocity control system. The driving unit is configured to move a magnetic head operative for magnetic recording/reproduction of information on a magnetic disk. The position error feedback control system is configured to perform feedback... Agent: Amin, Turocy & Calvin, LLP

20080291569 - Base dam in a data storage system to reduce or eliminate motor leakage: A base for a data storage system is provided having an inner facing surface and an outer facing surface. The base includes a motor well. Formed with inner surface of facing surface of the base includes a medium region, an actuator region and a dam. The medium region is defined... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20080291570 - High performance computer hard disk drive and method: A high performance hard disk drive is disclosed in which a flying read/write head runs in contact or in near contact with a rotating platter. In this design there is no wear of the hard disk platter or flying head due to both head and platter being coated with an... Agent: Alex Rhodes Unit No. 9

20080291571 - Magnetic head and information storage device: A magnetic head of the present invention includes a magnetic pole that faces a surface of a recording medium, moves relative to the surface in a direction along the surface, and produces a line of magnetic force intersecting the surface of the recording medium; and a coil that excites the... Agent: Greer, Burns & Crain

20080291572 - Magnetic recording medium and method for manufacturing the same: According to one embodiment, a magnetic recording medium includes recording areas forming protrusions corresponding to servo signals and recording tracks and includes a crystalline magnetic layer, and non-recording areas comprising an amorphous damaged layer left in bottoms of recesses between the recording areas.... Agent: Patterson & Sheridan, L.L.P.

20080291573 - Magnetic recording medium, and manufacturing method, manufacturing apparatus, recording and reproduction method, and recording and reproduction apparatus for the same: With a magnetic recording medium, servo pits have to be recorded one disk at a time, which is a problem in that it takes more time and is more expensive. In view of this, with the present invention, at least one signal region whose surface roughness is different from that... Agent: Wenderoth, Lind & Ponack L.L.P.

20080291574 - Fluid dynamic pressure bearing, spindle motor using the fluid dynamic pressure bearing and recording disk drive unit using the spindle motor: A shaft body 2 of a fluid dynamic bearing having a flange portion 4 at one end is supported rotatably via radial direction micro clearances by the sleeve 5 having a dynamic pressure generating groove 11 on the inner peripheral portion. A flange portion 4 is inserted between the lower... Agent: Schulte Roth & Zabel LLP Attn: Joel E. Lutzker

20080291575 - Flexure, method of manufacturing flexure, and head suspension with flexure: A flexure has a substrate made of a thin conductive metal plate, a base insulating layer made of flexible resin formed on the substrate, wiring patterns formed on the base insulating layer and connected to a slider mount, and a cover insulating layer formed over the wiring patterns. The flexure... Agent: Jordan And Hamburg LLP

20080291576 - Controller, storage apparatus and control method: A controller controls movement of a head mounted in a storage apparatus based on a signal output from an acceleration sensor. A head movement control section which controls movement of the head to a target position on a storage medium and a head unload control section unloads the head to... Agent: Greer, Burns & Crain

20080291577 - Method and apparatus for testing magnetic head with tmr element: A magnetic head testing apparatus having the function of evaluating pin holes in a tunnel barrier layer of a TMR element by a non destructive inspection is disclosed. The testing apparatus comprises a temperature control unit which sets a circumferential temperature of a TMR element, a bias electric current control... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20080291578 - Substrate, magnetic recording medium and manufacturing method thereof, and magnetic storage apparatus: This perpendicular magnetic recording medium has a nonmagnetic substrate and a magnetic recording structure formed above the substrate. The magnetic recording structure has at least a soft magnetic underlayer, an intermediate layer and a magnetic layer. The substrate has a surface profile curve whose angle of inclination is 2.0 degree... Agent: Greer, Burns & Crain

20080291579 - Method for testing noise of thin-film magnetic head, and magnetic disk drive apparatus with noise testing function: A noise-testing method for a thin-film magnetic head with an MR read head element and a heating unit capable of applying a heat and a stress to the MR read head element, includes a step of applying alternately and discontinuously with each other an electrical power having a first level... Agent: Frommer Lawrence & Haug

20080291580 - Perpendicular magnetic recording head: In a perpendicular magnetic recording head having a main magnetic pole layer and a return yoke layer which are laminated with a magnetic gap layer interposed therebetween on a medium-opposing surface, a pair of side coils constituting respective electrically closed circuits on a surface parallel to the medium-opposing surface are... Agent: Oliff & Berridge, PLC

20080291581 - Magnetic recording and reading device: A magnetic recording and reading device includes a magnetic recording medium having at least one magnetic recording layer, a magnetic head enabling a data transfer rate of more than 50 MB/s and a recording density of more than 5 Gb/in2 on the magnetic recording medium, and a R/W-IC. The magnetic... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080291583 - Thin film magnetic head comprising metal layer and method of producing the same: m

20080291582 - Thin film magnetic head, head gimbal assembly, head arm assembly and magnetic disk device: Provided is a thin film magnetic head capable of suppressing an occurrence of a track erase, decreasing an influence on a magnetoresistive element caused by a magnetic flux generated from a thin film coil, and further decreasing the parasitic capacity. The thin film magnetic head has, in order in a... Agent: Oliff & Berridge, PLC

20080291585 - Magnetoresistive effect element and magnetoresistive random access memory: It is made possible to provide a magnetoresistive effect element that can reverse magnetization direction with a low current, having low areal resistance (RA) and a high TMR ratio. A magnetoresistive effect element includes: a film stack that includes a magnetization free layer including a magnetic layer in which magnetization... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080291586 - Tunneling magnetic sensor including platinum layer and method for producing the same: A tunneling magnetic sensor includes a platinum layer between a pinned magnetic layer and an insulating barrier layer. The platinum layer can probably vary the barrier height (potential height) and barrier width (potential width) of the insulating barrier layer to reduce the absolute value of VCR, thus providing higher operating... Agent: Brinks Hofer Gilson & Lione

20080291584 - Magnetic tunnel junctions including crystalline and amorphous tunnel barrier materials: Magnetic tunnel junctions are disclosed that include ferromagnetic (or ferrimagnetic) materials and a bilayer tunnel barrier structure. The bilayer includes a crystalline material, such as MgO or Mg—ZnO, and Al2O3, which may be amorphous. If MgO is used, then it is preferably (100) oriented. The magnetic tunnel junctions so formed... Agent: Daniel E. Johnson IBM Corporation, Almaden Research Center

20080285166 - Method for controlling drive of recording medium: A method of controlling a drive of a recording medium according to one embodiment includes receiving data from a host, and writing the data to the recording medium. A difference in volume between the data at the time of being received from the host and the data at the time... Agent: Shimokaji & Associates, P.C.

20080285167 - Method for reading data using multi-format magnetic head: A method for reading data using a magnetic head having a first array of elements associated with a first data format, and a second array of elements associated with a second data format, the elements being selected from a group consisting of readers, writers, and combinations thereof, wherein the first... Agent: Zilka-kotab, PC- Ibm

20080285168 - Methods and apparatus to perform hard-disk drive head proximity detection in a preamplifier: Methods and apparatus to perform hard-disk drive head proximity detection in a preamplifier are described. One example method of detecting head position in a hard-disk drive includes obtaining a read signal from a head reading information from a disk; determining a signal envelope of the read signal; comparing the signal... Agent: Texas Instruments Incorporated

20080285169 - Magnetic disk drive: In a magnetic disk drive having a magnetic circuit for moving a magnetic head by driving an actuator having the magnetic head mounted thereon, to a target track, and a base having a height criterion member for carrying out positioning in a height direction of the magnetic circuit as a... Agent: Greer, Burns & Crain

20080285170 - Magnetic disk drive and method of controlling the same: Embodiments of the present invention provide a magnetic disk drive, in which a disturbance component contained in an output signal from a rotational vibration detector, can be appropriately suppressed irrespective of frequency of the component, and a method of controlling the drive. According to one embodiment, in a magnetic disk... Agent: Townsend And Townsend And Crew LLP

20080285171 - Servo signal recording apparatus, servo signal recording method, and magnetic tape: A servo signal recording apparatus and servo-signal recording method for recording a servo signal on a magnetic tape that includes a magnetic layer having a data area capable of storing data and a servo area capable of storing a servo signal, the apparatus including a transportation unit for transporting the... Agent: Birch Stewart Kolasch & Birch

20080285172 - Method for transporting a tape cartridge within a tape library storage system: An apparatus for transporting a storage media cartridge in a data storage library is disclosed. The apparatus includes an accessor, a pinion and a rack having a straight section and a curved section. The curved section includes multiple rack teeth that are capable of rotating independently from each other to... Agent: Dillon & Yudell, LLP

20080285173 - Hybrid coating for magnetic heads: A system and method for providing corrosion protection for a magnetic read/write head is disclosed. A monolayer surface coating is applied to cover those portions of the under layer of a magnetic read/write head not already covered by a previously applied diamond-like coating. This allows for a thinner diamond like... Agent: Kenyon & Kenyon

20080285174 - Magnetic recording medium and magnetic storage device: A magnetic recording medium includes: a substrate; a recording layer that is formed on the substrate to have a grooved pattern; and a protection layer formed on the recording layer to fill in the grooved pattern, wherein the recording layer is defined to have a servo portion that retains servo... Agent: Nixon & Vanderhye, PC

20080285175 - Disk device: According to one embodiment, a magnetic disk device includes a case provided with a base and a top cover. On the base in the case are arranged a motor, a disk-shaped recording medium rotatably supported on the motor, a head, a head actuator which supports the head for movement with... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20080285176 - Storage device: A storage device includes a head configured to record information in or reproduce the information from a recording medium, a suspension configured to support the head, a lift tab provided onto the suspension, a ramp, which the lift tab elastically contacts, the lift tab being configured to slide on the... Agent: Greer, Burns & Crain

20080285177 - Magnetic recording medium, method for manufacturing the same, and magnetic recording apparatus: According to an aspect of an embodiment, a magnetic recording medium includes a substrate, and a first granular layer formed over the substrate, the first granular layer having a plurality of first magnetic particles and Si oxide separating the plurality of first magnetic particles. The magnetic recording medium further includes... Agent: Greer, Burns & Crain

20080285179 - Magnetic head device including heat-conducting layer for transferring heat to slider body: A magnetic head device includes a TMR sensor or a CPP GMR sensor. Shield layers are disposed in contact with the top and bottom of a sensor body. A sensing current is supplied to the sensor body through the shield layers. Lead layers are connected to the shield layers and... Agent: Brinks Hofer Gilson & Lione

20080285180 - Magnetic sensing element and method for manufacturing the same: An underlying layer is composed of Co—Fe—B that is an amorphous magnetic material. Thus, the upper surface of the underlying layer can be taken as a lower shield layer-side reference position for obtaining a gap length (GL) between upper and lower shields, resulting in a narrower gap than before. In... Agent: Brinks Hofer Gilson & Lione

20080285178 - Thin film magnetic head characterized in bias-applying layer: A thin film magnetic head comprises a lower magnetic shield layer and an upper magnetic shield layer which are mutually opposed in the layering direction, a magnetoresistance effect element having a free layer, and a bias-applying layer which applies a bias magnetic field to the magnetoresistance effect element. The free... Agent: Oliff & Berridge, PLC

20080285182 - Enhanced anti-parallel-pinned sensor using thin ruthenium spacer and high magnetic field annealing: An anti-parallel pinned sensor is provided with a spacer that increases the anti-parallel coupling strength of the sensor. The anti-parallel pinned sensor is a GMR or TMR sensor having a pure ruthenium or ruthenium alloy spacer. The thickness of the spacer is less than 0.8 nm, preferably between 0.1 and... Agent: Zilka-kotab, PC- Hit

20080285183 - Magneto-resistance effect element and magnetic memory: An area of an element can be made small and fluctuation in area can be reduced. A magneto-resistance effect element is provided with a first electrode with an end face; a magneto-resistance effect film which is formed such that a surface thereof comes in contact with the end face of... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080285181 - Method for protecting against corrosion in a gmr sensor by providing a protective coating over an end of a copper layer spaced apart from a detection surface by a specified dimension: A method for providing a giant magneto-resistive (GMR) sensor for use in sensing magnetic flux is provided. The method comprises positioning a layer of Cu material between first and second layers of a specified ferromagnetic material. The respective end surfaces of the Cu layer and the first and second layers... Agent: Brooks Kushman P.C. / Sun / Stk

20080278835 - Monitoring transducer potential to detect an operating condition: The disclosure is related to detecting a fault condition of a transducer for reading and writing data to a data storage medium. The fault condition can be detected based on a potential difference between a reference voltage and a common mode of the transducer.... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20080278836 - Testing data transfer time of disk drives in consumer electronics devices: Systems, apparatus and methods are disclosed for testing performance of a disk drive in a digital home communications terminal. One such method comprises: downloading a disk drive performance test application from a server over a communication channel; executing the test application to measure at least one time for data transfer... Agent: Thomas, Kayden, Horstemeyer & Risley Scientific Atlanta, A Cisco Company

20080278837 - Frequency, phase, and gain estimation technique for use in a read channel receiver of a hard disk drive: One or more methods and systems are presented for performing gain and timing acquisition of data read from one or more data sectors of a hard disk drive. The gain and timing information may be used to synchronize a read channel receiver of the hard disk drive to the data... Agent: Mcandrews Held & Malloy, Ltd

20080278838 - Thermal asperity detector and methods for use therewith: A thermal asperity detector for use in a hard disk drive includes a magnitude detector that produces a magnitude signal from a read head signal. A filter module filters the magnitude signal to produce a amplitude signal. A comparator compares the amplitude signal to an amplitude thermal asperity threshold and... Agent: Garlick Harrison & Markison

20080278839 - Multi-dimensional transport method and apparatus for cartridge library: A cartridge library (30) comprises at least one drive (60); a cartridge magazine (52); and, a transport mechanism (54) configured to transport the cartridge between the magazine and the drive. The transport mechanism (54) is configured to transport the cartridge between, e.g., cells of the magazine (52) and/or between the... Agent: Nixon & Vanderhye, PC

20080278840 - Position control method of inertial drive actuator and inertial drive actuator: A position control method of inertial drive actuator includes a movement-amount setting step of setting an amount of movement, a target-position setting step of setting a target position of a moving body, a position detection step of detecting a relative position of the moving body, a comparison step of comparing... Agent: Scully Scott Murphy & Presser, PC

20080278841 - Selectively inhibiting transducer output responsive to detected jerk: A related apparatus can include a circuit that detects the rate of change of an acceleration signal and generates a transducer output inhibit signal in response to the detected rate of change of the acceleration signal. Another related apparatus can include a transducer, an accelerometer, and a circuit. The transducer... Agent: Myers Bigel Sibley & Sajovec, P.A.

20080278842 - Corrected read/write offset compensation: A read trajectory and/or a write trajectory of a read/write head of a rotatable disk drive is adjusted using a compensation signal that compensates for a time-varying difference between the read trajectory and the write trajectory.... Agent: Myers Bigel Sibley & Sajovec, P.A.

20080278843 - Apparatus, system, and method for repeatable runout cancellation using ring of integrators: An apparatus, system, and method are disclosed to cancel repeatable runout signals. A linear causal system having an impulse response receives a cancellation signal and outputs a position error signal. An inverse matrix module multiplies the position error signal by an inverse matrix and outputs an intermediate cancellation signal. One... Agent: Powell And Associates

20080278844 - Servo controlling method, recording/reproducing apparatus, magnetic tape, and magnetic tape cartridge: A servo controlling method of the present invention is a servo controlling method for controlling a position of a magnetic head against a magnetic tape that is accommodated in a cartridge and has at least a data track and a servo track, and the method includes the steps of: reading... Agent: Birch Stewart Kolasch & Birch

20080278845 - Magnetic recording/reproducing apparatus: A magnetic recording/reproducing apparatus includes a rotating drum unit for recording data to a magnetic tape of a tape cassette or reproducing data recorded to the magnetic tape, a tape guiding member for pulling the magnetic tape out from the tape cassette for forming a tape path, a tape loading... Agent: Ipusa, P.l.l.c

20080278846 - High friction rotating guide and magnetic tape system: A magnetic tape system comprises a magnetic tape, a magnetic head, a set of guides arranged to guide the magnetic tape along a tape path over the magnetic head, a first resistance mechanism, and a second resistance mechanism. The set of guides comprises a first rotatable guide positioned before the... Agent: Attention: Eric D. Levinson Imation Corp.

20080278847 - Method and apparatus for positioning drives in cartridge library: A cartridge drive library (30) comprises a drive bay (50); a magazine (52) which accommodates at least one cartridge of information storage media; a transport mechanism (54) which transports a cartridge between the magazine and one or more plural drive units (60) accommodated in the drive bay; and plural drive... Agent: Nixon & Vanderhye, PC

20080278848 - Magnetic recording/reproducing device: In a magnetic recording/reproducing device, a tape guide member draws out a magnetic tape from a tape cassette to form a tape path in a vicinity of a magnetic head, and a tape guide moving mechanism moves the tape guide member. The tape guide moving mechanism includes a driving force... Agent: Ipusa, P.l.l.c

20080278849 - Flow balancer for track misregistration improvement: Disclosed is a hard disk drive that includes at least one disk enclosed by a cover and a disk. A damper is separated from the disk by an air gap about 1.0 mm. The damper and air gap reduce the velocity of the air flow and any vibration associated with... Agent: Irell & Manella LLP

20080278850 - Motor: When a sleeve of a fluid dynamic bearing is manufactured, its inner peripheral surface is formed by cutting. On the inner peripheral surface, first and second inclined surfaces are formed by a first cutting process such that a distance between the sleeve and a central axis is increased toward an... Agent: Volentine & Whitt PLLC

20080278851 - Systems and methods for selectively controlling a state of hydration of a magnetic data storage medium: A magnetic storage system according to one embodiment includes a magnetic head adapted for at least one of reading from a magnetic medium and writing to the medium; a drive mechanism for directing the medium over the head; and a first element for selectively altering a voltage of the medium... Agent: Zilka-kotab, PC- Ibm

20080278853 - Perpendicular magnetic recording head: In a perpendicular magnetic recording head comprising a main magnetic pole layer and a return yoke layer which are laminated with a magnetic gap layer interposed therebetween on a medium-opposing surface, and a pair of side shield layers positioned on both sides in the track width direction of the main... Agent: Oliff & Berridge, PLC

20080278852 - Perpendicular magnetic recording head and method of manufacturing the same: A perpendicular magnetic recording head and a method of manufacturing said perpendicular magnetic recording head are provided. The perpendicular magnetic recording head has a main pole, a coil, which applies a magnetic field to the main pole, and a return pole constituting a magnetic circuit together with the main pole.... Agent: Sughrue Mion, PLLC

20080278854 - Magnetic head with wear resistant portion near overcoat: A magnetic head according to one embodiment includes a substrate; at least one transducer formed above the substrate, the at least one transducer being selected from a group consisting of a reader and a writer; an overcoat portion formed above the at least one transducer; and a wear resistant portion... Agent: Zilka-kotab, PC- Ibm

20080278855 - Perpendicular magnetic recording write head with trailing shield having notch and throat height defined by nonmagnetic pad layer: A perpendicular magnetic recording write head supported on an air-bearing slider has a magnetic write pole (WP) with a WP end at the air-bearing surface (ABS) having a width generally equal to the data track width and a trailing shield (TS) with a TS end generally coplanar with the WP... Agent: Thomas R. Berthold

20080278856 - Fixing apparatus for hard disk drive: An exemplary fixing apparatus is for mounting a hard disk drive having a plurality of holes in sidewalls thereof. The fixing apparatus includes a first fixing plate, a bracket, and a transverse bar. The bracket includes a second fixing plate, and a bezel assembly attached to a first end of... Agent: PCe Industry, Inc. Att. Cheng-ju Chiang

20080278857 - Flexible circuit board, motor equipped with the flexible circuit board, and hard disc drive apparatus: By providing a flexible circuit board of a laminated structure capable of preventing contamination such as fluff, miniscule pieces of iron, or textile scraps from becoming affixed to an outer peripheral cross-sectional surface of the flexible circuit board. It is possible to prevent contamination from becoming affixed to an outer... Agent: Wenderoth, Lind & Ponack L.L.P.

20080278858 - Wired circuit board: The wired circuit board includes a metal supporting board, a metal foil formed on the metal supporting board, a first insulating layer formed on the metal supporting board so as to cover the metal foil, and a conductive pattern formed on the first insulating layer and having a plurality of... Agent: Akerman Senterfitt

20080278859 - Resistivity sense bias circuits and methods of operating the same: Resistivity sense bias circuits are described herein. An example resistivity sense bias circuit for use with a magnetoresistive read head includes a current biasing portion configured to provide a bias current across the magnetoresistive read head thereby establishing a bias voltage across the magnetoresistive read head, a resistivity sensing portion... Agent: Texas Instruments Incorporated

20080278860 - Extraordinary magnetoresistive (emr) device with novel lead structure: An extraordinary magnetoresistive sensor (EMR sensor) having reduced size and increased resolution is described. The sensor includes a plurality of electrically conductive leads contacting a magnetically active layer and also includes an electrically conductive shunt structure. The electrically conductive leads of the sensor and the shunt structure can be formed... Agent: Zilka-kotab, PC- Hit

20080278862 - Perpendicular magnetic recording head: In a perpendicular magnetic recording head comprising a main magnetic pole layer and a return yoke layer which are laminated with a magnetic gap layer interposed therebetween on a medium-opposing surface, and a pair of side shield layers positioned on both sides in the track width direction of the main... Agent: Oliff & Berridge, PLC

20080278861 - Stitched wrap around shield fabrication for perpendicular magnetic recording write heads: A wrap around shield of a write head is fabricated in multiple processes, with side shields fabricated in one process, and a trailing shield formed in another process. These multiple processes form a stitched wrap around shield, resulting in more flexible and accurate placement of the trailing shield and side... Agent: Duft Bornsen & Fishman, LLP

20080278863 - Tunneling magnetic sensing element and method for manufacturing the same: A tunneling magnetic sensing element includes: a pinned magnetic layer whose direction of magnetization is pinned in one direction; an insulating barrier layer; and a free magnetic layer whose direction of magnetization changes in response to an external magnetic field. The pinned magnetic layer, the insulating barrier layer and the... Agent: Brinks Hofer Gilson & Lione

20080278866 - Magnetic sensing element: At both sides of an element portion, a first hard bias layer having a higher residual magnetization Mr and a second hard bias layer having a higher coercive force Hc are deposited in that order from the bottom with one end of the first hard bias layer being closed close... Agent: Brinks Hofer Gilson & Lione

20080278867 - Magnetoresistance device with a diffusion barrier between a conductor and a magnetoresistance element and method of fabricating the same: A magnetoresistance device is provided for improving thermal stability of a magnetoresistance element by preventing inter-diffusion between a conductor (such as a via and an interconnection) for connecting the magnetoresistance element to another element and layers constituting the magnetoresistance element. A magnetoresistance device is composed of a magnetoresistance element, a... Agent: Sughrue Mion, PLLC

20080278865 - Magnetroresistive element, method of manufacturing the same, and magnetic multilayered film manufacturing apparatus: A magnetoresistive element includes an antiferromagnetic layer formed from a layer containing manganese, a layered magnetization fixed layer which includes a first magnetization fixed layer located over a side of the antiferromagnetic layer and formed from a layer containing a ferromagnetic material and a platinum group metal, a second magnetization... Agent: Fitzpatrick Cella Harper & Scinto

20080278864 - Novel cpp device with an enhanced dr/r ratio: A CPP-GMR spin valve having a composite spacer layer comprised of at least one metal (M) layer and at least one semiconductor or semi-metal (S) layer is disclosed. The composite spacer may have a M/S, S/M, M/S/M, S/M/S, M/S/M/S/M, or a multilayer (M/S/M)n configuration where n is an integer ≧1.... Agent: Stephen B. Ackerman

20080273258 - System and method for deconvolution of multiple data tracks: A method for reading a magnetic medium having a data band thereon, the data band comprising a plurality of simultaneously written tracks. The method includes receiving signals from a plurality of adjacent readers simultaneously reading data tracks, wherein at least some of the readers that are currently reading overlie adjacent... Agent: Zilka-kotab, PC- Ibm

20080273259 - Magnetic tape cartridge and magnetic recording and reproducing apparatus: A magnetic tape cartridge includes a cartridge case, a pair of cylindrical hubs rotatably provided in the cartridge case, and a magnetic tape laid between the hubs and wound around outer peripheries of the hubs. Each of the hubs has an inner diameter portion provided with a height-position determining member.... Agent: Bell, Boyd & Lloyd, LLP

20080273260 - Method and apparatus for detecting proximity contact between a transducer and a medium: A method and apparatus are provided for positioning a transducer relative to a track of a data storage medium and inducing lateral modulation of transducer the relative to the track. An element of the transducer is actuated toward the storage medium during the lateral modulation, and atomic interaction is detected... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20080273261 - Media cartridge storage device for an autoloading data storage and retrieval system: A cartridge storage device for a data storage and retrieval system according to one embodiment comprises a housing having a front and a back positioned on opposite ends of the housing; a plurality of cells in the housing, each cell adapted for receiving a media cartridge; and a drive mechanism... Agent: Zilka-kotab, PC- Ibm

20080273262 - Magnetic disk drive, preamplifier for magnetic disk drive, flexible printed cable assembly for magnetic disk drive: Embodiments of the present invention help to improve the cost, mountability, and reliability of a magnetic disk drive that regulates a fly height of a magnetic head slider correspondingly to the operating altitude of the drive by using an air pressure sensor and a heater. According to one embodiment, a... Agent: Townsend And Townsend And Crew LLP

20080273263 - Lubricated limiter for fluid dynamic bearing motor: In one example, a FDB motor having a top-cover attached, EM biased bearing system is provided. The motor includes a shaft and rotor disposed for relative rotation, and an axial limiter for restricting axial movement of the rotor with respect to the shaft, wherein the axial limiter is wet or... Agent: Seagate Technology LLC C/o Novak Druce & Quigg LLP

20080273264 - Planar servo write head: A servo write head that provides fast servo pattern writing and improved tape manufacturing speed is provided. The write head may be fabricated using thin-film fabrication techniques. A coil is formed on a bottom pole of the write head. The coil has a plurality of turns that enable the write... Agent: International Business Machines Corporation

20080273265 - Determining smear of a hard disk drive slider: A disk drive head slider for a magnetic disk drive is provided. The head slider includes a tunnel magnetic resistance device for reading data on a magnetic disk and a dedicated sensor for measuring resistance wherein the resistance corresponds to a level of smear associated with the head slider.... Agent: Hitachi C/o Wagner Blecher LLP

20080273266 - Integrated lead head suspension with tapered trace spacing: An integrated lead flexure for a disk drive head suspension, comprising two or more spaced-apart traces extending between terminal connector pads and head connector pads, wherein the spacing between the traces substantially continuously decreases along at least a portion of the length of the traces.... Agent: Faegre & Benson LLP Patent Docketing

20080273267 - Slider with improved structure for adjusting flying height thereof and hard disk drive with the same: A slider has a slider substrate, a read sensor, a top shield and a bottom shield sandwiching the read sensor, and a write shield. The slider substrate is electrically connected to a substrate electrical connection which is adapted to provide a flying height control voltage to the slider substrate for... Agent: Nixon & Vanderhye, PC

20080273269 - Disk drive head suspension flexures having alternating width stacked leads: An integrated lead flexure for a disk drive head suspension of the type having a plurality of stacked leads disposed on separate layers, the plurality of stacked leads extending between terminal connector pads and head connector pads, comprising stacked lead pairs having opposing and regularly alternating wider and narrower portions,... Agent: Faegre & Benson LLP Patent Docketing

20080273268 - Perpendicular magnetic recording write head with coplanar main pole and return poles and magnetic recording system: A perpendicular magnetic recording write head has a main pole and return poles that are substantially coplanar. The write head includes a main pole, two return poles and a connecting stud that are all formed as a single layer in a single deposition and patterning step. The coplanar main and... Agent: Thomas R. Berthold

20080273270 - Forming a planarized surface for at least one bar of sliders: A method for forming a planarized surface for at least one bar of sliders for utilization in a hard disk drive is disclosed. In general, at least one bar of sliders is placed on an adhesive layer. A single thermoplastic layer is then provided above the at least one bar... Agent: Hitachi C/o Wagner Blecher LLP

20080273271 - Reducing the height of a defect associated with an air bearing surface: A method for reducing the height of a defect associated with an air bearing surface of a hard disk drive slider is disclosed. The technology initially ion mills for a first period of time at a first angle relative to an air bearing surface of a disk drive slider to... Agent: Hitachi C/o Wagner Blecher LLP

20080273272 - Micro-actuator, hga equipped with the micro-actuator and method for manufacturing the hga: A micro-actuator used in HGA of the disk drive unit is provided. The micro-actuator comprises a metal frame which includes a base piece and two opposite arms extending from the base piece, in which at least two pieces of thin film PZT are attached to the side surface(s) of each... Agent: Courtney Staniford & Gregory LLP

20080273273 - Thin-film magnetic head including two magnetic layers and flat spiral coil, and method of manufacturing same: A thin-film magnetic head includes a first magnetic layer, a flat, spiral-shaped coil, a toroidal-shaped insulating layer covering the coil, and a second magnetic layer touching the insulating layer and disposed to sandwich part of the coil between itself and the first magnetic layer. The second magnetic layer has a... Agent: Oliff & Berridge, PLC

20080273274 - Magnetic detection element and manufacturing method thereof: Embodiments of the present invention help to suppress etching damage to a non-magnetic intermediate layer in manufacturing steps of a reproducing head. In one embodiment, a reproducing head has two junction insulating films between side ends of magnetoresistive sensor and hard bias films at both left and right of a... Agent: Townsend And Townsend And Crew LLP

20080273277 - Composite shield structure of pmr writer for high track density: Improved writability and a substantial reduction in adjacent track erasure are achieved by incorporating a composite shield structure in a PMR writer. There is a trailing shield formed a certain distance above the top surface of a write pole, a leading shield formed a certain distance below the bottom surface... Agent: Stephen B. Ackerman

20080273275 - Fabricating a write head with multiple electronic lapping guides: Write heads and corresponding methods of fabrication are provided using multiple electronic lapping guides to collect information regarding multiple distances of a write head, such as a throat height and a flare point distance of a write pole. A method of fabricating a write head includes fabricating a write pole... Agent: Duft Bornsen & Fishman, LLP

20080273276 - Optimized write pole flare angle for side shield or semi side shield pmr writer application: Improved writability and a reduction in adjacent track erasure are achieved in a PMR writer with a large flare angle of 45 and 90 degrees in the main write pole and a full side shield or partial side shield configuration around the narrow write pole section and write pole tip.... Agent: Stephen B. Ackerman

20080273278 - Multi-port cable for removable esd/eod protection for electronic devices: A protective device for protecting an electronic device, e.g., MR head, from ESD/EOS damage includes a cable having leads coupled to the electronic device and a first port providing access to the leads. A second port with one-to-one electrical connection to each lead in the cable provides a second electrical... Agent: Zilka-kotab, PC- Ibm

20080273279 - Reorientation of magnetic layers and structures having reoriented magnetic layers: A magnetoresistive assembly includes at least a first and a second magnetoresistive element formed on a common substrate, the at least first magnetoresistive element comprising a first pinned ferromagnetic layer being magnetized in a first direction, the at least second magnetoresistive element comprising a second pinned ferromagnetic layer being magnetized... Agent: Zilka-kotab, PC- Ibm