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Dynamic magnetic information storage or retrieval April category listing, related patent applications 04/10

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
04/29/2010 > patent applications in patent subcategories.

20100103549 - Data archive system: In a virtual disk library device access of data stored in a tape can be conducted at a high speed with a high-speed archiving process from a disk to the tape in units of LUs maintained. The efficiency of update of the data stored in the tape can be improved.... Agent: Antonelli, Terry, Stout & Kraus, LLP

20100103550 - Magnetic transfer device: A magnetic transfer device enables precise positioning of both disks while preventing generation of dust by sliding of a holder, and also secures a space for transfer magnet arrangement. A master disk on which is formed a magnetic signal pattern and a magnetic disk which is to receive transfer are... Agent: Rossi, Kimms & Mcdowell LLP.

20100103551 - Data sector phase correction method and disk drive apparatus using the same: A method to correct a phase of a data sector due to rotational slip of a disk includes measuring a difference in the phase of a servo sector between a plurality of disks and adjusting an amount of cylinder skew of a logical data sector between the plurality of disks... Agent: Stanzione & Kim, LLP

20100103552 - Method for distinguishing unbalanced disc: A method for distinguishing unbalanced disc in an optical disc reproducing/recording apparatus, comprising following steps: moving an optical pickup head to a first position of an optical disc; rotating the optical disc to a predetermined rotating speed; transferring a focus error signal produced by the optical pickup head to a... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20100103553 - Surface plasmon antenna with propagation edge and near-field light generating element: Provided is a surface plasmon antenna that can be set so that the emitting position on the end surface of the plasmon antenna where near-field light is emitted is located sufficiently close to the end of a magnetic pole. The surface plasmon antenna comprises an edge having a portion for... Agent: Frommer Lawrence & Haug LLP

20100103554 - Media access method and magnetic storage apparatus: According to one embodiment, a media access method includes a head scanning each track of a magnetic recording medium while tilting with respect to a direction perpendicular to the track direction at all positions including a position with a skew angle of zero on the magnetic recording medium. The track... Agent: Greer, Burns & Crain

20100103555 - Self servo writing disk controller and methods for use therewith: A self servo writing disk controller detects a plurality of spiral sync marks and a plurality of spiral bursts corresponding to one of a plurality of servo spirals from a read signal from the read/write head. A timing reference signal is generated based on timing of at least one of... Agent: Garlick Harrison & Markison

20100103556 - Storage device: According to one embodiment, a storage device includes a storage medium, a head slider, and a heating element. The storage medium has a lubricating film on the surface. The head slider faces a surface of the storage medium on the medium facing surface. The heating element is embedded in the... Agent: Greer, Burns & Crain

20100103557 - Lubricant with non-terminal functional groups: Lubricant with non-terminal functional groups. The location of the functional groups minimizes free chain length and molecular weight of a lubricant while simultaneously maximizing evaporation temperature. The locations of the functional groups to the backbone of the molecule of the lubricant allows for shorter lengths of free backbone length between... Agent: Hitachi Global Storage Technologies, Inc.

20100103558 - Magnetic tape library device: The magnetic tape library device is configured, including: a front magazine and a rear magazine for housing a large number of magnetic tape cartridges; a device main body in which the both magazines are housed in a parallel state in a freely slidable manner; an accessor mechanism for transporting the... Agent: Mcginn Intellectual Property Law Group, PLLC

20100103559 - Magnetic recording medium and method of manufacturing same: A method of manufacturing a magnetic recording medium is disclosed, as well as a magnetic recording medium manufactured by the method. In the manufacturing method, the uneven pattern has magnetic recording elements in protruding portions formed above a substrate, and depressed portions between the recording elements are filled with a... Agent: Rossi, Kimms & Mcdowell LLP.

20100103560 - Head slider: According to one embodiment, a head slider includes a slider main body, an element embedded film, a head element, and a plurality of recesses. The head element is embedded in the element embedded film. The recesses are distributed in a predetermined area formed on the trailing end surface of the... Agent: Greer, Burns & Crain

20100103561 - Storage device, processor or storage device, and computer program product: According to one embodiment, a storage device includes: ahead actuator configured to move a head to an arbitrary position on a disk medium; a write/read module configured to write data to or read data from the disk medium using the head; an adjustment region selector configured to divide the disk... Agent: Knobbe Martens Olson & Bear LLP

20100103562 - Magnetoresistive element including a pair of ferromagnetic layers coupled to a pair of shield layers: A magnetoresistive element includes a pair of shield portions, and an MR stack and a bias magnetic field applying layer that are disposed between the pair of shield portions. The shield portions respectively include single magnetic domain portions. The MR stack includes a pair of ferromagnetic layers magnetically coupled to... Agent: Oliff & Berridge, PLC

20100103563 - Magnetoresistive element including a pair of ferromagnetic layers coupled to a pair of shield layers: A magnetoresistive element includes first and second shield portions and an MR stack. Each of the first and second shield portions includes a shield bias magnetic field applying layer, and a closed-magnetic-path-forming portion that forms a closed magnetic path in conjunction of the shield bias magnetic field applying layer. The... Agent: Oliff & Berridge, PLC

20100103564 - Tunnel junction type magneto-resistive head: As recording density of sensors is increased, it is desired to lower the areal resistivity (RA) of TMR sensors. Decreasing RA to 1.0 Ωμm2 or below badly influences the read signal since the interlayer coupling magnetic field (Hint) between the pinned layer and the free layer increases sharply and impedes... Agent: Zilka-kotab, PC- Hit

20100103565 - St-ram employing heusler alloys: A memory cell including a free magnetic layer, the magnetization of which is free to rotate under the influence of spin torque; an insulating layer; and a pinned magnetic layer, wherein at least one of the free magnetic layer or the pinned magnetic layer includes a Heusler alloy, and wherein... Agent: Campbell Nelson Whipps, LLC

04/22/2010 > patent applications in patent subcategories.

20100097714 - Generating pes using readback signal distortion: A data storage system includes a storage medium having a plurality of data sectors and a head that communicates with the data storage medium. The head produces a readback signal when reading information from the data storage medium. A computation unit extracts a distortion component of the readback signal and... Agent: Seagate Technology LLC C/o Westman, Champlin & Kelly, P.A.

20100097715 - Nanoimprinting resin composition: d

20100097716 - Head slider, head assembly, and magnetic disk device: Provided is a head slider that can heat a recording medium with a simple structure. In the head slider (10), a hole portion (14h) having an opening in a medium facing surface (10a) facing a disk-shaped recording medium (2) is formed, and a heating element (32) that is heated by... Agent: Antonelli, Terry, Stout & Kraus, LLP

20100097717 - Reducing the spectral energy of torque ripple: In BLDC motors driven via sensorless techniques, the BEMF signals in the motor coils may be used to detect the position of the motor such that speed of the motor may be accurately controlled. When detecting the BEMF signals, however, small perturbations occur which negatively impact the rotational torque of... Agent: Stmicroelectronics, Inc.

20100097718 - Library device and cartridge carrying method: A library device comprises a cell, a drive, and an accessor. The cell is capable of accommodating a plurality of cartridges. The drive performs a recording or reproduction of data between the cartridges and the drive. The accessor carries the cartridges between the cell and the drive. The cell is... Agent: Mcginn Intellectual Property Law Group, PLLC

20100097719 - Clamp of disk rotation driver: A disc can be supported stably and surely. The clamp (7) of a disc rotation driver (1) provided with an abutting portion (13) circularly at the outer circumferential part with the central part being secured and fixed to a rotary drivable hub (5), and supporting a magnetic disc (3) fixedly... Agent: Jordan And Hamburg LLP

20100097720 - Magnetic recording/reproducing apparatus and method of manufacturing the same: According to one embodiment, a magnetic recording/reproducing apparatus includes a magnetic head and a magnetic recording medium. The magnetic recording medium includes a recording layer formed of a hard magnetic layer and a soft magnetic layer. The hard magnetic layer has a bit width corresponding to a length of a... Agent: Greer, Burns & Crain

20100097721 - System for controlling contact location during tfc touchdown and methods thereof: A system according to one embodiment includes a thin film stack having a magnetic transducer and a contact pad; and a heater in the thin film stack for inducing thermal protrusion of a media-facing side of the thin film stack, wherein the thin film stack is characterized by the contact... Agent: Zilka-kotab, PC- Hit

20100097722 - Magnetoresistive device of the cpp type, and magnetic disk system: The semiconductor oxide layer that forms a part of the spacer layer in the inventive giant magnetoresistive device (CPP-GMR device) is composed of zinc oxide of wurtzite structure that is doped with a dopant given by at least one metal element selected from the group consisting of Zn, Ge, V,... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20100097723 - Thin-film piezoelectric device, production method thereof, head gimbals assembly using the thin-film piezoelectric device, and hard disk drive using the head gimbals assembly: A method includes a step of stacking a first electrode layer, a piezoelectric layer, and a second electrode layer on a first substrate to form a first laminate; a step of stacking a support layer on a second substrate to form a second laminate; a step of bonding the first... Agent: Oliff & Berridge, PLC

20100097724 - Head gimbal assembly for heat-assisted magnetic recording: Provided is an HGA with a radiation structure that can effectively get away the heat generated from a light source. The HGA comprises a suspension and a head comprising a slider and a light source unit. The suspension comprises an opening, and the light source unit projects through the opening... Agent: Oliff & Berridge, PLC

20100097725 - Carriage assembly and storage medium driving device: According to one embodiment, a carriage assembly includes a carriage block body, a carriage arm, a coil, a pair of support arms, and a frame body. The carriage block body is rotatably connected to a spindle. The carriage arm extends forward from the front of the carriage block body. The... Agent: Knobbe Martens Olson & Bear LLP

20100097726 - Cost reduced microactuator suspension: An improved microactuator suspension is provided for use with high density storage media. The number of microactuator elements is reduced to one and placed perpendicularly to the longitudinal axis of the suspension arm to maximize the windage and resonance performance and minimize the microactuator's contribution to bending stiffness and the... Agent: Kinney & Lange, P.A.

20100097728 - Head suspension assembly and storage medium drive apparatus: According to one embodiment, a head suspension assembly includes: a head slider; a fixed piece configured to be fixed to the head slider; a flexible long piece configured to extend from the fixed piece and to be connected to a head suspension; an arm piece configured to be connected to... Agent: Knobbe Martens Olson & Bear LLP

20100097727 - Recessed base plate for data transducer suspension: A suspension assembly with reduced total vertical thickness is provided for a data transducing system that includes a dual-stage actuation system for positioning a data transducer. A first structural element of the suspension assembly includes a plate portion and a boss tower that is connectable to a main actuator of... Agent: Kinney & Lange, P.A.

20100097729 - Cpp dual free layer magnetoresistive head for magnetic data storage: A magnetoresistive sensor having a scissor free layer design and no pinned layer. The sensor includes first and second free layers that have magnetizations that are oriented at 90 degrees to one another and has a third magnetic layer with a magnetization that is antiparallel coupled with one of the... Agent: Zilka-kotab, PC- Hit

20100097730 - Spin high-frequency mixer and method of manufacture thereof: A spin high-frequency mixer includes a spin current generator generating a spin current upon input of a local oscillator signal, a TMR device which inputs a high-frequency signal and the spin current and generates a mixed signal, and an output device outputting the generated mixed signal from the TMR device.... Agent: Oliff & Berridge, PLC

04/15/2010 > patent applications in patent subcategories.

20100091398 - Disk clock system with up-sampler to generate frequency offset: A system reads data from a magnetic storage media. A read head reads data from the magnetic storage media and produce an analog signal. A variable gain amplifier amplifies the analog signal. An offset adjust module substantially centers the amplified analog signal to a midscale. A Magneto Resistive Asymmetry (MRA)... Agent: Garlick Harrison & Markison

20100091399 - Architecture for data storage systems: A system includes N first-in first-out (FIFO) modules, a buffer manager module, and N input/output (I/O) modules, where N is an integer greater than 1. The buffer manager module retrieves a set of N data units from a buffer and outputs the set of N data units to the N... Agent: Harness, Dickey & Pierce P.L.C

20100091401 - Head slider and storage medium driving device: According to one embodiment, a head slider, includes: a slider body; an insulating nonmagnetic film configured to be laminated on an air outflow side end face of the slider body; a magnetoresistive effect film configured to be buried in the nonmagnetic film; first and second wiring patterns configured to be... Agent: Knobbe Martens Olson & Bear LLP

20100091400 - Magnetic disk apparatus and slider for magnetic recording: According to one embodiment, a magnetic disk apparatus includes a patterned disk, a slider, two read heads, a write head, and a drive circuit. The patterned disk has a magnetic recording surface on which bit patterns are arranged concentrically. The slider is located near the magnetic recording surface, and moves... Agent: Greer, Burns & Crain

20100091402 - Adhesion layer for thin film magnetic recording medium: The invention uses an adhesion layer of an amorphous alloy of aluminum. A first aluminum titanium embodiment of the amorphous adhesion layer preferably contains approximately equal amounts of aluminum and titanium (+/−5 at. %). A second embodiment of the amorphous adhesion layer preferably contains approximately equal amounts of aluminum and... Agent: Marlin Knight

20100091403 - Data storage device with maximum capacity increasable through consumption of advertisement material: A data storage device is disclosed. In one embodiment, the data storage device has a maximum storage capacity and is initially limited to providing access to a limited amount of data storage capacity that is less than the maximum data storage capacity. The size of the limited amount of data... Agent: Seagate Technology LLC C/o Westman, Champlin & Kelly, P.A.

20100091404 - Magnetic read/write head substrate: A substrate for a magnetic read/write head is disclosed. The substrate can reduce detachment of crystal grains when the substrate is machined. The substrate may be machined when the substrate is cut into strips or a flow path surface recess is formed to produce the magnetic read/write head. The reduced... Agent: Birch Stewart Kolasch & Birch

20100091407 - Perpendicular write head having a stepped flare structure and method of manufacture thereof: A magnetic write head for data recording having a magnetic write pole with a stepped magnetic shell structure that defines a secondary flare point. The secondary flare point defined by the magnetic shell portion can be more tightly controlled with respect to its distance from the air bearing surface (ABS)... Agent: Zilka-kotab, PC- Hit

20100091405 - Slider with an air bearing surface and related topography: A slider for use with disk drive data storage devices includes a topography that defines features of the slider. The features facilitate in controlling fly-height and/or inhibiting lubricant accumulation on the slider. For example, a trailing air bearing surface of the slider may be formed around a multi-stepped channel that... Agent: Patterson & Sheridan, L.L.P.

20100091406 - Slider with pockets in front of air bearing surface: A slider for use with disk drive data storage devices includes a topography that defines features of the slider. The features facilitate in controlling peak pressure, providing stiffness, and/or inhibiting lubricant accumulation on the slider. For example, the features include an air bearing surface and a cavity disposed in front... Agent: Patterson & Sheridan, L.L.P.

20100091408 - Hard disk drive with disk separator for creating axial gaps between disks for access by read/write heads: A hard disk drive (HDD) has a stack of disks mounted on a rotatable spindle with the disks being movable axially, i.e., in a direction parallel to the axis of rotation of the spindle. A disk separator is located inside the spindle and separates axially-adjacent disks in a pair to... Agent: Thomas R. Berthold

20100091409 - Head gimbal assembly and actuator having the same in hard disk drive: A gimbal head assembly and an actuator having the same, the gimbal head assembly and the actuator being included in a hard disk drive (HDD). The actuator can include a swing arm rotatably installed on a base member, the head gimbal assembly elastically biasing a read/write head towards a surface... Agent: Stanzione & Kim, LLP

20100091410 - Magnetic read/write head and magnetic read/write apparatus having same: A magnetic read/write head includes: a slider having an ABS, a surface at an leading edge, and a surface at an trailing edge; a piezoelectric device arranged on the surface at the trailing edge of the slider; and a magnetic read/write element arranged on the piezoelectric device. The piezoelectric device,... Agent: Edwards Angell Palmer & Dodge LLP

20100091411 - Non-radial bearing preload: A system and method for reducing resonance in a data transfer system are herein disclosed. A data transfer system comprises a bearing and a guide member. The bearing further comprises an outer ring. The guide member is arranged relative to the bearing so as to guide the outer ring for... Agent: Hewlett-packard Company Intellectual Property Administration

20100091412 - Method for manufacturing a magneto-resistance effect element and magnetic recording and reproducing apparatus: A method for manufacturing a magneto-resistance effect element is provided. The magneto-resistance effect element includes a first magnetic layer including a ferromagnetic material, a second magnetic layer including a ferromagnetic material and a spacer layer provided between the first magnetic layer and the second magnetic layer, the spacer layer having... Agent: Nixon & Vanderhye, P.C.

20100091413 - Magnetic recording head, method of manufacturing the same, and magnetic recording/reproducing device: According to one embodiment, a magnetic recording head includes a main pole having a throat height portion and a flare portion that is connected to the throat height portion, the flare portion gradually being expanded in width to an upper part in an element height direction. The head also includes... Agent: Zilka-kotab, PC- Hit

20100091414 - Method for manufacturing a magneto-resistance effect element and magnetic recording and reproducing apparatus: A method for manufacturing a magneto-resistance effect element is provided. The magneto-resistance effect element includes a first magnetic layer including a ferromagnetic material, a second magnetic layer including a ferromagnetic material and a spacer layer provided between the first magnetic layer and the second magnetic layer, the spacer layer having... Agent: Nixon & Vanderhye, P.C.

20100091415 - Method for manufacturing a magneto-resistance effect element and magnetic recording and reproducing apparatus: A method for manufacturing a magneto-resistance effect element is provided. The magneto-resistance effect element includes a first magnetic layer including a ferromagnetic material, a second magnetic layer including a ferromagnetic material and a spacer layer provided between the first magnetic layer and the second magnetic layer, the spacer layer having... Agent: Nixon & Vanderhye, PC

20100091416 - Magnetic read head: A magnetoresistive head which has a high head SNR by reducing generated mag-noise without deteriorating an output comprises, according to one embodiment, a magnetoresistive sensor having a laminated structure which includes an antiferromagnetic layer, a magnetization pinned layer, a non-magnetic intermediate layer, a magnetization free layer, and a magnetization stable... Agent: Zilka-kotab, PC- Hit

04/08/2010 > patent applications in patent subcategories.

20100085654 - Data transfer assembly performance characteristics testing: An apparatus is provided having a data transfer member, and a medium supported by a base adjacent the data transfer member. A medium tilting device supports the base and is selectively positionable to tilt the medium with respect to the data transfer member to simulate presenting the head to the... Agent: Mccarthy Law Group

20100085655 - Recording/reproducing system, recording/reproduction method, program, and recording medium: A recording/replaying system comprises a recording medium 15 on which a plurality of data pieces are recorded, write file managing means 11 which records on the recording medium 15 one or multiple lists which are for selecting predetermined data pieces from among the plurality of recorded data pieces and specifying... Agent: Smith, Gambrell & Russell

20100085656 - Apparatus, system, and method for automatic unthread and store of data storage device medium: An apparatus, system, and method for automatic unthreading and storage of storage media helps prevent damage to the media, which can otherwise occur when the storage media is left threaded in a storage media drive over an extended period or under adverse conditions. A sensing device may generate a signal... Agent: Kunzler Needham Massey & Thorpe

20100085657 - Control method for magnetic disk device, magnetic disk device, and magnetic disk: According to one embodiment, a control method for a magnetic disk device includes writing data by varying a phase of the array period of the plurality of magnetic elements or a phase of the time period of the recording signal in one section of the track from a corresponding phase... Agent: Zilka-kotab, PC- Hit

20100085658 - Storage device controlling device, storage device, storage device controlling program, and storage device controlling method: A storage device controlling device includes: a head sector generation section that creates predetermined information different from control information to be read out first from plural storage media; an input/output section that writes the control information into a head sector on the storage media; a reception section that receives an... Agent: Greer, Burns & Crain

20100085659 - Information storage devices using magnetic domain wall motion: An information storage device includes a magnetic track and a pinning element for pinning the magnetic domain wall. The magnetic track includes a plurality of magnetic domains and a magnetic domain wall arranged between each pair of adjacent magnetic domains. The pinning element is configured to apply a magnetic field... Agent: Harness, Dickey & Pierce, P.L.C

20100085660 - Tape library apparatus: A tape library apparatus includes a transporting rail extending in parallel with a vertical reference plane. A cell is configured to receive a tape cartridge in an upright attitude along an inclined reference plane. The inclined reference plane intersects with the vertical reference plane at an acute angle for establishment... Agent: Staas & Halsey LLP

20100085661 - Hydrodynamic bearing device and disk rotation apparatus: In a hydrodynamic bearing device in which a radial bearing face having a dynamic pressure generating groove on a shaft or an inner periphery of a sleeve is provided and a clearance between the shaft and the sleeve is filled with lubricant, an annular depression is provided on one end... Agent: Gregory A. Stobbs

20100085662 - Methods of manufacturing fluid-dynamic-pressure bearing and spindle motor incorporating the bearing, and spindle motor and recording-disk drive incorporating the bearing: In spindle motors journaled on fluid-dynamic-pressure bearings, especially in such spindle motors employed in recording-disk drives in implementations that subject the drives to vibration and shock, sealing performance of a capillary seal formed between motor rotor-side and stator-side bearing surfaces, cohesiveness of oil-repellant on rotor-side/stator-side dry-area surfaces adjoining the capillary... Agent: Volentine & Whitt PLLC

20100085663 - Head suspension and method of manufacturing head suspension:

20100085664 - Head gimbal assembly: [Means for Resolution] A head gimbal assembly 12 with a light guide structure that is included in a rotary member borne to be turnable on a pivot shaft disposed outside magnetic recording media which are rotated in a certain direction. The head gimbal assembly includes a support 40 borne by... Agent: Bruce L. Adams, Esq Adams & Wilks

20100085665 - Damping member for a moveable flex circuit: Method and apparatus for attenuating resonances in a flex circuit which interconnects a stationary element and a moveable element, such as a connector and a head stack assembly (HSA) in a data storage device. An intermediary portion of the flex circuit forms a dynamic loop between the stationary element and... Agent: Fellers, Snider, Blankenship, Bailey & Tippens, PC (seagate Technology LLC)

20100085666 - Low noise magneto-resistive sensor utilizing magnetic noise cancellation: A magnetic sensor, formed from a pair of magnetically free layers located on opposing sides of a non-magnetic layer, and method for its manufacture, are described. Biasing these free layers to be roughly orthogonal to one another causes them to be magnetostatically coupled in a weak antiferromagnetic mode. This enables... Agent: Saile Ackerman LLC

04/01/2010 > patent applications in patent subcategories.

20100079885 - System and method for providing performance-enhanced rebuild of a solid-state drive (ssd) in a solid-state drive hard disk drive (ssd hdd) redundant array of inexpensive disks 1 (raid 1) pair: The present invention is a method for implementing a storage system. The storage system may include a disk array having a disk drive pair which includes a solid-state disk drive and a hard disk drive. The method may include the step of copying a data subset of a data set... Agent: Lsi Corporation C/o Suiter Swantz PC Llo

20100079886 - Magnetic transfer master carrier, magnetic transfer method using the same, and magnetic recording medium: A magnetic transfer master carrier to be placed on a perpendicular magnetic recording medium, including: a concavo-convex pattern corresponding to magnetic information to be transferred to the medium by application of a magnetic field, wherein a length (La) of a convex portion in the concavo-convex pattern and a length (Sa)... Agent: Young & Thompson

20100079887 - Magnetic transfer method and magnetic recording medium: To provide a magnetic transfer method including: initially magnetizing a perpendicular magnetic recording medium in a perpendicular direction; closely attaching a magnetic transfer master carrier to the initially magnetized perpendicular magnetic recording medium; transferring magnetic information to the perpendicular magnetic recording medium by applying a perpendicular magnetic field which acts... Agent: Young & Thompson

20100079888 - Eccentricity determination for a disk: Monitoring of the eccentricity of a pre-formatted servo pattern on a disk.... Agent: Western Digital Technologies, Inc. Attn: Lesley Ning

20100079889 - Systems and methods for storing data to magnetic tape having damaged areas: A method for using magnetic tape having damaged areas is disclosed. The method may include writing data to streaming magnetic tape, determining if the data write was successful, and responding to an unsuccessful data write by interrupting the data writing and advancing the magnetic tape forward a predetermined distance. Additionally,... Agent: Baker Botts L.l.p

20100079890 - Method and apparatus for encoding positioning information on a magnetic tape media: Method and apparatus for magnetic tape recording where the magnetic tape has data and servo tracks, and address or other positioning information is encoded on the servo track. A servo track burst pattern is provided whereby certain of the bursts define a gap between the stripes of the first and... Agent: Morrison & Foerster LLP

20100079891 - Track-adapted data clocking: A method for writing data to a tape at multiple rates for simultaneously creating data tracks having differing linear data densities, according to one embodiment, includes passing a tape over a head, the head having an array of writers thereon; receiving incoming data; mapping the data to a two dimensional... Agent: Zilka-kotab, PC- Ibm

20100079894 - Magnetic transfer master carrier and magnetic transfer method using the same: To provide a magnetic transfer master carrier to be placed on a perpendicular magnetic recording medium so as to transfer magnetic information to the medium by application of a magnetic field, the magnetic transfer master carrier including: transfer portions that include a magnetic layer and correspond to the magnetic information;... Agent: Young & Thompson

20100079893 - Method for producing concavo-convex member, concavo-convex member, magnetic transfer method, and perpendicular magnetic recording medium: A method for producing a concaves-convex member having a concavo-convex pattern on a surface of a base material, including: forming a covering layer on surfaces of at least concave portions of an original master for producing a concavo-convex member, with a concavo-convex pattern provided on its surface; forming a barrier... Agent: Young & Thompson

20100079892 - Method for producing magnetic transfer master carrier, magnetic transfer master carrier and magnetic transfer method: To provide a method for producing a magnetic transfer master carrier, including: plating a patterned silicon substrate with nickel so as to form a base material on the silicon substrate; separating the base material from the silicon substrate; and etching a surface of the base material so as to obtain... Agent: Young & Thompson

20100079895 - Plasmon antenna and heat-assisted magnetic recording head: Provided is a plasmon antenna in which a near-field light having a sufficient intensity is generated only in a desired location. The plasmon antenna comprises an end surface on a side where a near-field light is generated; the end surface is flat and has a shape with at least three... Agent: Frommer Lawrence & Haug LLP

20100079896 - Error correction mapping: A method according to one embodiment includes receiving signals from multiple readers; and performing more error control processing on a signal from an outer reader than on a signal from an inner reader. A method according to one embodiment includes receiving signals from multiple readers; and performing different amounts of... Agent: Zilka-kotab, PC- Ibm

20100079897 - Storage device with pulsed motor torque: A system and method for overcoming adhesion between media and a surface of a storage device in contact with the media. A storage device comprises a media velocity detector and a media drive motor controller. The media velocity detector detects storage media velocity as torque is applied to a storage... Agent: Hewlett-packard Company Intellectual Property Administration

20100079902 - Controller and storage device: According to one embodiment, in a controller of a servo system that performs positioning control of a head by feedback control includes a generating module and a notch filter. The generating module compares a target position and position information decoded from data read by the head from a recording medium... Agent: Greer, Burns & Crain

20100079900 - Magnetic head-positioning servo system, magnetic head test system and magnetic disk test system: A magnetic head-positioning servo system is provided to accurately test a magnetic disk with a track written in advance, by providing two fine actuators. The second fine actuator, to which a magnetic head is attached, is mounted on the first fine actuator. The second fine actuator has a larger generating... Agent: Antonelli, Terry, Stout & Kraus, LLP

20100079898 - Magnetic storage apparatus and servo information reproducing method: A magnetic storage apparatus includes a recording medium having a first area in which servo information for controlling a magnetic head is stored, and a second area in which correction information for correcting the servo information is stored, an amplifying part configured to amplify a reproduced signal obtained by reproducing... Agent: Greer, Burns & Crain

20100079901 - Production method for magnetic recording media and magnetic recording and reproducing apparatus: A production method for a magnetic recording medium on which a stable lubricant layer can be formed even if unevenness remains on the surface, and the thickness of the lubricant layer is not reduced over time is provided. The method includes forming a lubricant layer (12) on a surface of... Agent: Sughrue Mion, PLLC

20100079899 - Storage apparatus and method of adjusting the same: A storage apparatus includes a controller circuit controlling the operation of a head actuator for moving a head relative to a storage medium. The storage apparatus further includes an acceleration sensor detecting acceleration. A notch filter outputs the result of detection of the acceleration sensor to the controller circuit. A... Agent: Greer, Burns & Crain

20100079903 - Adaptive data recovery procedure based on radial positioning: Data recovery information characterizes data recovery procedure (DRP) steps to be performed within a hard disk drive (HDD) in response to a miss. Particular data recovery information corresponds to a radial position of the actuator and, therefore, the position of the magnetic recording read/write head relative to the associated storage... Agent: Hitachi C/o Wagner Blecher LLP

20100079904 - Storage control method, storage control unit and storage apparatus: A control method includes determining whether a size of write data specified by a command supplied from a host is smaller than a size of a physical sector of a recording medium, lowering priority of the write data when the size of the write data is smaller than the size... Agent: Greer, Burns & Crain

20100079905 - Method and apparatus for determining position of a storage medium: A system and method for determining the value of a longitudinal position (“LPOS”) bit of a storage medium. A system comprises a selector that selects a value for a longitudinal position (“LPOS”) bit from a plurality of possible values derived from LPOS information read from a storage medium. A quality... Agent: Hewlett-packard Company Intellectual Property Administration

20100079906 - Adaptive feed forward rotational vibration compensation during a seek operation: A disk drive assembly includes a disk drive, one or more accelerometers, a control circuit, and an adaptive feed forward circuit. The one or more accelerometers generate acceleration signals that are used to detect rotational vibration (RV) events on the disk drive. The control circuit is configured to: generate one... Agent: Morgan, Lewis & Bockius, LLP. (pa)

20100079907 - Tape drive with variable wrap reversal location: A system and method for reducing tape wear in a magnetic tape system. A tape drive comprises a wrap reverse location controller. The wrap reverse location controller determines a magnetic tape reversal location. The tape drive reverses the direction of the magnetic tape at the reversal location. The wrap reverse... Agent: Hewlett-packard Company Intellectual Property Administration

20100079908 - Determining a magnetic sample characteristic using a magnetic field from a domain wall: A magnetic field generator that is formed from a magnetic thin film, e.g., of ferrimagnetic garnet with a two magnetic domains with a domain wall between the two magnetic domains, is provided. A localized magnetic field is produced by the domain wall and is used as a magnetic field source... Agent: Silicon Valley Patent Group LLP

20100079910 - Magnetic disk apparatus and information reproducing method: A magnetic disk apparatus includes a magnetic disk that includes a plurality of zones in which a plurality of tracks are arranged for each of circumferences of a spiral, and gaps that are arranged between the zones to have a width a predetermined number of times larger than a track... Agent: Turocy & Watson, LLP

20100079911 - Magnetic recording medium, process for producing same, and magnetic recording reproducing apparatus using the magnetic recording medium: A perpendicular magnetic recording medium is provided, which has a backing layer, a primer layer, an intermediate layer and at least one perpendicular magnetic recording layer, and is characterized in that the perpendicular magnetic recording layer contains Co and Cr, and at least one of the perpendicular magnetic recording layer... Agent: Sughrue Mion, PLLC

20100079909 - Method for unloading head without calibration in hard disk drives: A hard disk drive with a voice coil motor coupled to a head. The disk drive includes a circuit that provides a drive current with a sinusoidal waveform to the voice coil motor during an unload routine. The back emf of the voice coil motor can be determined during a... Agent: Irell & Manella LLP

20100079912 - Magnetic recording device and magnetic recording method: A magnetic recording device includes a write head, a perpendicular magnetic recording medium, a recording-current generating circuit, and a setting circuit. The perpendicular magnetic recording medium includes a plurality of tracks that includes a recording track. The recording-current generating circuit generates a recording electric current. The write head supplied with... Agent: Greer, Burns & Crain

20100079913 - Magnetic disk device includes a sensor in a case: A magnetic disk device includes a magnetic head assembly, which includes magnetic heads, support plates, and a flexible wiring substrate that are integrally formed. The magnetic heads include heating elements for making head element parts protrude toward magnetic disks by thermal expansion, the support plate supports the magnetic head, the... Agent: Brinks Hofer Gilson & Lione

20100079914 - Slider and suspension composite fiber solder joints: Systems and methods for a slider and suspension assembly are discussed. The slider and suspension assembly comprises a slider, a suspension, and composite fiber solder. The composite fiber solder is coupled to the suspension and coupled to the slider. The composite fiber solder comprises a fiber, wherein the fiber is... Agent: Hitachi C/o Wagner Blecher LLP

20100079915 - Magnetic head assembly and magnetic disk device: According to one embodiment, a magnetic head assembly includes a magnetic head, a tang portion, a pair of arm portions, a connecting portion, a flexure, a load beam, and a damper. The tang portion supports the magnetic head. The arm portions support the tang portion, and are connected to the... Agent: Greer, Burns & Crain

20100079916 - Low power voice coil motor with a guiding magnet shell: A low power voice coil motor (VCM) with a guiding magnet shell comprises a magnetic device, a lens carrier, a base, a plurality of guide posts, an electromagnetic driving apparatus and a shell enclosing the lens carrier, the magnetic device and the electromagnetic driving apparatus. The shell and the magnetic... Agent: CovenantIPConsulting Co.

20100079917 - Magnetoresistive element including a pair of free layers coupled to a pair of shield layers: A first shield portion located below an MR stack includes a first main shield layer, a first antiferromagnetic layer, and a first magnetization controlling layer including a first ferromagnetic layer exchange-coupled to the first antiferromagnetic layer. A second shield portion located on the MR stack includes a second main shield... Agent: Oliff & Berridge, PLC

20100079918 - Method of manufacturing magnetoresistive element, magnetoresistive element, magnetic head assembly and magnetic recording apparatus: A method of manufacturing a magnetoresistive element includes forming a metal layer on a first ferromagnetic layer, oxidizing the metal layer to form an oxide layer in which unoxidized metal is remained and a magnetic conduction column penetrating the oxide layer in a thickness direction and including at least a... Agent: Nixon & Vanderhye, PC

20100079919 - Spin-torque oscillator, a magnetic sensor and a magnetic recording system: In a spin-torque oscillator, a first ferromagnetic layer, a non-magnetic layer and a second ferromagnetic layer are stacked. A pair of electrodes perpendicularly applies a current onto each plane of the first ferromagnetic layer, the non-magnetic layer and the second ferromagnetic layer. The current induces a precession of a magnetization... Agent: Ohlandt, Greeley, Ruggiero & Perle, LLP

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