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Dynamic magnetic information storage or retrieval September class, title,number 09/10

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.
  
09/30/2010 > patent applications in patent subcategories. class, title,number

20100246042 - Device of evaluating magnetic read head and method of evaluating magnetic read head: P

20100246044 - Magnetic head-positioning system, magnetic head test system and magnetic disk test system: A magnetic head-positioning system to accurately test a magnetic disk and a magnetic head, comprises a plurality of hinges attached on an end portion of a linear driving element and disposed on both sides of a center line of the linear driving element, which is in parallel with an extension-shrinkage... Agent: Antonelli, Terry, Stout & Kraus, LLP

20100246043 - Measuring reader/writer offset in a tape drive head: In a method of electronically measuring reader/writer offset in a tape drive head, a plurality of sequentially adjacent data tracks are written on a tape with a write head. Error rate information is measured while reading a data track of the plurality of sequentially adjacent data tracks with a read... Agent: Quantum C/o Wagner Blecher LLP

20100246045 - Magnetic recording medium, magnetic recording method, and magnetic recording apparatus: Disclosed is a magnetic recording medium comprising a substrate, a magnetic recording layer formed on the substrate to record magnetic information, and a piezoelectric material disposed adjacent to the magnetic recording layer and capable of contracting and expanding. Preferably, piezoelectric members made of the piezoelectric material are formed in such... Agent: Sughrue Mion, PLLC

20100246046 - Magnetic transfer method and magnetic transfer master carrier: Applying a magnetic field that varies like a single pulse from a start magnetic field to a maximum transfer magnetic field and then to an end magnetic field to a stacked body of a magnetic transfer master carrier and a perpendicular magnetic recording medium such that the time from the... Agent: Young & Thompson

20100246047 - Magnetic head and information storage device: According to one embodiment, a magnetic head includes a magnetic pole layer including a magnetic pole extending along a layer, a coil layer configured to adjoin the magnetic pole layer and including a plurality of conductor patterns constituting a part of a coil wound around the magnetic pole and a... Agent: Knobbe Martens Olson & Bear LLP

20100246048 - Preamplifier and method for synchronization with bit patterned media: A preamplifier and method writes data synchronized with the passing of a write head in a magnetic storage device over bit islands in discrete patterned recording media. The preamplifier contains a write pre-driver that conditions write data, a synchronization circuit that accepts a delay offset value and a write clock... Agent: Texas Instruments Incorporated

20100246049 - Computer having function for displaying status of operation and floppy module: A floppy module includes a floppy disk controller (FDC), a control circuit, and a display. The FDC has a first control terminal, a second control terminal, and a plurality of third control terminals. Wherein, the first control terminal and the second control terminal may respectively output a first control signal... Agent: Jianq Chyun Intellectual Property Office

20100246050 - Storage device: According to one embodiment, a storage device includes a base, a drive section on the base, configured to rotate a disk storage medium, an actuator mounted with a head for processing data in the storage medium and configured to move the head along a surface of the storage medium, a... Agent: Knobbe Martens Olson & Bear LLP

20100246051 - Stopping method for a spindle motor and related device: A method and circuit to stop a spindle motor in the absence of the external supply voltage in which the spindle motor is structured to move a hard disk provided with at least one reading or writing head moved by a voice coil motor, the spindle motor provided with a... Agent: Seed Intellectual Property Law Group PLLC

20100246054 - Magnetic recording and reading device: A magnetic recording and reading device includes a perpendicular magnetic recording medium, a perpendicular magnetic head having a recording head width having a heat-generating portion and a reading head, a fine adjustment portion, and a R/W-IC. The perpendicular magnetic head is configured to perform magnetic recording on the recording medium... Agent: Antonelli, Terry, Stout & Kraus, LLP

20100246052 - Method and apparatus for adaptive gain balancing of at least one of two rotational sensors in a hard disk drive: A hard disk drive and its circuit board and an integrated circuit are disclosed using two piezoelectric devices each having one terminal used to generate signal. The first signal goes to one input of a differential amplifier. The second signal goes to an amplifier whose gain is controlled to create... Agent: Gss Law Group

20100246053 - Storage device and ramp mechanism: According to one embodiment, a storage device has a head configured to read or write data with respect to a storage medium above the storage medium; a head suspension configured to support the head; a lift tab extending from an end on a head side of the head suspension; and... Agent: Knobbe Martens Olson & Bear LLP

20100246055 - Storage device: A magnetic disk device includes a head that reads position information, a position-information correction value for correcting the position information, and an error correcting code for the position-information correction value from a storage medium; an MCU and an ECC circuit for correcting an error in the position-information correction value based... Agent: Greer, Burns & Crain

20100246056 - Determination of wedge offset correction values for a disk drive: In a disk drive, a wedge-based scheme is used to determine wedge offset correction values for a track of the disk drive. Correction values for the offset of each servo wedge are calculated wedge-by-wedge, based on the position error signal (PES) of the most recently measured servo wedge in combination... Agent: Patterson & Sheridan, L.L.P.

20100246057 - Servo writer providing a pre-writing, longitudinal magnetic bias in a magnetically unoriented tape supply: A servo writing method is provided for use with unoriented magnetic tape media. A biasing zone is formed, such as between a pair of permanent block or disk magnets, with a strong DC magnetic field that is substantially free of perpendicular components. The method includes feeding the tape through the... Agent: Marsh Fischmann & Breyfogle LLP (oracle Formerly D/b/a Sun Microsystems)

20100246059 - Storage device: According to an embodiment, a storage device includes a housing configured to contain a magnetic disk storage medium, a drive section configured to rotate the storage medium to store information into the storage medium, an air passage which is defined along an outer peripheral edge of the storage medium between... Agent: Knobbe Martens Olson & Bear LLP

20100246058 - Storage system controlling power supply module and fan: When a disk device corresponding to a logical volume is started, a disk system determines and starts a disk device and a fan to be started, while comprehensively considering heat quantity generated by the disk device to be started, the cooling capacity of the fan, and the electric power consumption... Agent: Antonelli, Terry, Stout & Kraus, LLP

20100246060 - Perpendicular magnetic recording medium and magnetic recording and reproducing apparatus: The present invention relates to a perpendicular magnetic recording medium including a nonmagnetic substrate, and at least a soft magnetic layer (SUL), an alignment control layer, a magnetic recording layer and a protective layer formed on the nonmagnetic substrate, wherein the magnetic recording layer is constituted of two or more... Agent: Sughrue Mion, PLLC

20100246061 - Shielded perpendicular magnetic recording head: A magnetic recording head for perpendicular magnetic recording includes energizing means, a recording pole, and a return pole. The recording pole narrows to a tip region with leading and trailing write edges separated by first and second side edges. The tip region provides a low reluctance path for magnetic flux... Agent: Guerin & Rodriguez, LLP

20100246063 - Method of manufacturing hexagonal ferrite magnetic powder, magnetic recording medium and method of manufacturing the same: An aspect of the present invention relates to a method of manufacturing a hexagonal ferrite magnetic powder comprising preparing a melt by melting a starting material mixture comprising a hexagonal ferrite-forming component and a glass-forming component; rapidly cooling the melt to obtain an amorphous material comprising 0.3 to 2.0 weight... Agent: Sughrue Mion, PLLC

20100246062 - Patterned-media perpendicular magnetic recording disk with servo regions having magnetized servo pillars and oppositely-magnetized servo trenches: A patterned perpendicular magnetic recording disk has a pre-patterned disk substrate with pillars and trenches arranged in data regions and servo regions. In the data regions, the height of the data pillars is equal to or greater than the spacing between the data pillars, while in the servo regions the... Agent: Thomas R. Berthold

20100246064 - Lubricant compound for a magnetic disk, magnetic disk, and method of manufacturing the same: In a magnetic disk has at least a magnetic layer, a carbon-based protective layer, and a lubricating layer formed in this order over a substrate, the lubricating layer contains a lubricant compound including a compound which has a perfluoropolyether main chain in a structure thereof, an aromatic group located at... Agent: Sughrue Mion, PLLC

20100246065 - Suspension with additional bonding pads, head gimbal assembly and disk drive unit with the same: A suspension for a head gimbal assembly comprises a flexure having a plurality of electrical traces formed thereon, a plurality of first bonding pads formed on a first surface of the flexure and at least one second bonding pad formed on a second surface of the flexure opposite the first... Agent: Nixon & Vanderhye, PC

20100246066 - Head slider, storage device, and method of manufacturing head slider: According to one embodiment, a head slider includes an element unit formed by lamination on a substrate, a cut surface formed by cutting the substrate, an air-bearing surface configured to face a recording medium when in flight, a protective layer configured to protect at least the air-bearing surface of the... Agent: Knobbe Martens Olson & Bear LLP

20100246067 - Magnetic head suspension: In a magnetic head suspension according to the present invention, each of paired right and left connecting beams that are positioned on both sides of an open section, with which paired piezoelectric elements are at least partially overlapped in a plan view, in a suspension width direction and connect a... Agent: Sterne, Kessler, Goldstein & Fox P.l.l.c.

20100246068 - Hard disk drive: In a hard disk drive (HDD), a ratio of the distance R between the axis of rotation of an actuator and a magnetic head to the distance R0 between the axis of rotation of the actuator and the center of a disk is in the range of 0.9 to 0.96.... Agent: Volentine & Whitt PLLC

20100246069 - Hard disk drive: An HDD includes a head stack assembly, a voice coil motor, and a retracting pin unit. The retracting pin unit includes a mobile retracting pin generating a retracting force to maintain the actuator arm at a predetermined position by interacting with the magnet when the read/write head is parked, and... Agent: Stanzione & Kim, LLP

20100246070 - Head stack assembly and hard disk drive having the same: A hard disk drive includes a head stack assembly including a read/write head mounted thereon and an actuator arm pivoting over a disk around a pivot shaft installed on a base, a pivot shaft holder rotatably supporting the pivot shaft and to which the actuator arm is coupled, and a... Agent: Stanzione & Kim, LLP

20100246071 - Head suspension assembly and magnetic disk drive: According to one embodiment, a head suspension assembly includes a load beam supporting a head, and a microactuator configured to swing the load beam. The microactuator includes two piezoelectric elements configured to undergo shear deformation when supplied with a voltage and juxtaposed in such a manner that respective shear deformations... Agent: Knobbe Martens Olson & Bear LLP

20100246072 - Hard disk drive: A hard disk drive having an actuator coupled to a pivot part about which the actuator rotates, including first and second pivot bearings coupled to the actuator and the pivot part, wherein a rotation center of at least one of the first and second pivot bearings is offset from respective... Agent: Stanzione & Kim, LLP

20100246073 - Magnetic recording medium, magnetic signal reproduction system and magnetic signal reproduction method: An aspect of the present invention relates to a magnetic recording medium comprising a magnetic layer comprising a ferromagnetic powder and a binder on a nonmagnetic support. A height of protrusions with a protrusion density of 0.002 protrusion/μm2 or lower on a surface of the magnetic layer as measured by... Agent: Akerman Senterfitt

  
09/23/2010 > patent applications in patent subcategories. class, title,number

20100238574 - Method and system for governing an enterprise level green storage system drive technique: A method and system for manipulating a spin state of each disk in a drive array is disclosed. In one embodiment, a method includes monitoring input/output (I/O) requests to each disk drive in a disk array and identifying any disk drive as an inactive disk drive based on a number... Agent: GlobalIPServices, PLLC

20100238576 - Magnetic bit-patterned disk and disk drive: According to one embodiment, a disk drive having a magnetic disk of the bit pattern media type is provided. The disk drive has a reproduction module configured to reproduce a signal from a measurement area provided on the magnetic disk and holding groups of phase-shift measuring bits, a measurement module... Agent: Knobbe Martens Olson & Bear LLP

20100238577 - Method and apparatus for measuring phase shift in a disk drive having bit-patterned media: According to one embodiment, a disk drive comprising a magnetic disk of bit-patterned type is provided. The disk drive has a reproduction module, a measurement module, and a recording module. The reproduction module outputs a reproduced signal corresponding to the phase-shift measuring bits provided on the magnetic disk. The measurement... Agent: Knobbe Martens Olson & Bear LLP

20100238575 - Write driver monitoring and detection: Electronic circuitry and methods are disclosed for monitoring a portion of a write driver, for example, a steady state value of a write driver of a hard disk drive preamplifier. Based on a result of the monitoring, a condition, such as a fault, can be detected in the write driver.... Agent: Ryan, Mason & Lewis, LLP

20100238578 - Method for generating write clock signal in magnetic disk drive: According to one embodiment, a write clock generator writes data to bits in a magnetic recording medium based on a write clock signal with a phase obtained by delaying the phase of a reference write clock signal. The write clock generator detects the amplitude of a read signal for the... Agent: Knobbe Martens Olson & Bear LLP

20100238579 - Magnetic storage device, method for setting processing conditions for magnetic storage device, and computer program product for setting processing conditions for magnetic storage device: According to one embodiment, a magnetic storage device, includes: a verification processing detector configured to detect whether there are a plurality of operation commands corresponding to a first verifying operation, based on a plurality of sets of individual information about the operation commands for the magnetic storage device from an... Agent: Knobbe Martens Olson & Bear LLP

20100238582 - Disk apparatus with contact-type head: According to one embodiment, a disk drive comprises a head and a heating actuator. The head is configured to slide over a rotating disk in contact with a surface of the disk. The heating actuator is configured to vary a state of contact between the head and the disk by... Agent: Knobbe Martens Olson & Bear LLP

20100238581 - Head gimbal assembly and disk drive: A head gimbal assembly including a gimbal provided with a tongue comprising a stage; a sub-mount comprising a laser diode, wherein the laser diode is disposed internally in the sub-mount, and wherein the sub-mount is mounted on said stage; a head slider for thermally assisted recording, wherein the head slider... Agent: Hitachi C/o Wagner Blecher LLP

20100238580 - Thermally-assisted magnetic recording head with light source on element-integration surface: A thermally-assisted magnetic recording head is provided, in which a light source with a sufficient power is disposed in the element-integration surface to improve mass-productivity. The head comprises, in an element-integration surface of a substrate: a light source; a waveguide for propagating light from the light source; and a magnetic... Agent: Frommer Lawrence & Haug LLP

20100238583 - Disk device: According to one embodiment, a disk device rotates a disk information storage medium to record and reproduce information on the information storage medium by use of a head that slides in contact with a lubricant coated on the information storage medium, wherein a sliding speed U, area A and normal... Agent: Knobbe Martens Olson & Bear LLP

20100238586 - Arrangement method of servo pattern of patterned medium, patterned medium, and information storage device: According to one embodiment, address information is expanded on a bit map in order to generate original address information which is divided in a direction of the abscissa to form groups. The demodulated values of the original address information are obtained as original intra-group demodulated values. New address information is... Agent: Knobbe Martens Olson & Bear LLP

20100238585 - Method of controlling flying height of magnetic head of hard disk drive: A method of controlling an HDD includes acquiring a reference FOD voltage profile offering a correlation between flying heights FH of a magnetic head and FOD voltages that if applied to the magnetic head would cause the head to fly at the flying heights (FH) in an idealized situation, determining... Agent: Volentine & Whitt PLLC

20100238587 - Portable device with freefall detection or audio processing subsystem and freefall detection or audio processing method: In a class of embodiments, a method and apparatus for detecting freefall of a disk device (thereby predicting that the disk device will likely suffer imminent physical impact) and typically also preventing damage that a disk drive of the device would otherwise suffer if and when a predicted impact occurs.... Agent: Nvidia C/o Murabito, Hao & Barnes LLP

20100238584 - Simultaneous bit pattern determination and head positional information detection on patterned media: An apparatus, system, and method comprise a magnetoresistive head configured to respond to magnetization states of patterned cells formed on a patterned medium. The magnetoresistive head detects the magnetization states of at least two patterned cells formed on a patterned medium. The magnetoresistive head generates a readback signal based on... Agent: K&l Gates LLP

20100238588 - Feed-forward method for repeatable runout cancellation: A magnetic hard disk drive includes a method for eliminating that portion of track following error by a read/write transducer that is caused by repeatable runout of the disk tracks. The repeatable runout is eliminated by application of an iterative algorithm that calculates feed-forward correction terms based on gain coefficients... Agent: Saile Ackerman LLC

20100238589 - Transport apparatus and library apparatus: A transport apparatus and a library apparatus are provided. The transport apparatus includes a holding mechanism, a base and a lifting/lowering mechanism. The holding mechanism holds an object to transport. The holding mechanism is mounted on a base. The lifting/lowering mechanism lifts and lowers the base in first directions. The... Agent: Staas & Halsey LLP

20100238590 - Disk drive device rotationally driving recording disk: A disk drive device is provided with a base, a hub on which a recording disk is to be mounted, a bearing unit arranged on the base and configured to rotatably support the hub, and a spindle drive unit configured to rotatably drive the hub. A circumferential ring wall portion... Agent: Fulwider Patton LLP

20100238591 - Disk drive device rotationally driving recording disk: A disk drive device includes: a hub on which a recording disk is to be mounted; a base configured to rotatably support the hub via a bearing; a core that is fixed to the base and includes a circular portion and S salient poles (where S is a natural number... Agent: Fulwider Patton LLP

20100238592 - Head slider and magnetic storage device: According to one embodiment, a head slider includes a magnetic head, a medium facing surface, a flow-in end surface, a flow-out end surface, side surfaces, and an absorbing structure. The magnetic head reads and writes information with respect to a magnetic recording medium. The medium facing surface faces the magnetic... Agent: Knobbe Martens Olson & Bear LLP

20100238593 - Head stack assembly incorporating device, magnetic disk device manufacturing device, and method of manufacturing magnetic disk device: According to one embodiment, a head stack assembly incorporating device connects a head stack assembly to the base of a magnetic disk device by screwing a connector on the bottom surface of the rotational shaft of the head stack assembly and a connector on the base of the magnetic device... Agent: Knobbe Martens Olson & Bear LLP

20100238594 - Head suspension assembly and storage device: According to one embodiment, a head suspension assembly includes: a metal thin plate held by a head suspension; a fixed plate formed in the metal thin plate and joined to the head suspension; a supporting plate formed in the metal thin plate on the front side of the fixed plate... Agent: Knobbe Martens Olson & Bear LLP

  
09/16/2010 > patent applications in patent subcategories. class, title,number

20100232046 - Methods and systems for estimating time corresponding to peak signal amplitude: Various systems and methods for peak signal detection. As one example, a method for peak signal detection that includes receiving a signal is disclosed. The received signal includes a signal region where the signal is increasing in amplitude, another signal region where the signal is decreasing in amplitude, and a... Agent: Hamilton,desanctis & Cha (lsi)

20100232047 - Data interleaving in tape drives: Methods and apparatus for interleaving data in a multitrack tape drive and for writing data on a multitrack tape in the tape drive. One method includes: partitioning the data into m(2n+k) data blocks, where each data block has a logical array of rows and columns of data bytes; error-correction coding... Agent: Ibm Corporation, T.j. Watson Research Center

20100232048 - Disk storage device: According to one embodiment, a disk storage device includes: a controller configured to write data pieces stored in a buffer memory to a disk medium by a physical sector size which is an integer multiple of a unit logical block, wherein the controller is configured to detect at least one... Agent: Knobbe Martens Olson & Bear LLP

20100232049 - System and method for sector remapping: Disclosed herein is an improved sector remapping method that maps logical sectors into physical sectors in storage disks such as SATA (Serial ATA) drives without reducing either storage capacity or I/O performance efficiency. Under this sector remapping method, logical sectors of data can be written into the physical sectors of... Agent: Emulex Design & Manufacturing Corporation C/o Morrison & Foerster LLP

20100232051 - Combined bulk thermal-assister and bulk eraser: A combined bulk thermal-assister and bulk eraser. The bulk thermal-assister is configured to produce a temperature in a magnetic-recording disk in a hard-disk drive when the hard-disk drive is disposed in the bulk eraser. The temperature is about equal to a second temperature greater than a first temperature of the... Agent: Hitachi C/o Wagner Blecher LLP

20100232050 - Power control of tamr element during read/write transition: A slider mounted TAMR (Thermal Assisted Magnetic Recording), DFH (Dynamic Flying Height) type read/write head using optical-laser generated surface plasmons in a small antenna to locally heat a magnetic medium, uses the same optical laser at low power to pre-heat the antenna. Maintaining the antenna at this pre-heated temperature, approximately... Agent: Saile Ackerman LLC

20100232054 - Magnetic recording medium and magnetic storage: An object of the invention is to provide a magnetic recording medium which exhibits an excellent corrosion resistance. To this end, proposed is a magnetic recording medium including a magnetic recording layer in which: a magnetic body and a filling body alternately appear along a recording surface; and a layer... Agent: Antonelli, Terry, Stout & Kraus, LLP

20100232053 - Method and apparatus for controlling head with spin-torque oscillator in a disk drive: According to one embodiment, a disk drive has a magnetic disk and a magnetic head having a spin-torque oscillator. The disk drive further has a head amplifier IC configured to supply a write signal and a drive signal to the magnetic head. The write signal corresponds to write data. The... Agent: Knobbe Martens Olson & Bear LLP

20100232052 - Process for producing magnetic recording medium and magnetic recording/reproduction apparatus: Provided is a process for making a magnetic recording medium having a magnetically partitioned magnetic recording patterns, which comprises the following three steps (1), (2) and (3), conducted in this order: (1) a step of forming a magnetic layer on a non-magnetic substrate; (2) a step of removing surface layer... Agent: Sughrue Mion, PLLC

20100232055 - Information storage devices and methods of operating the same: An information storage device includes a magnetic structure having a buffer track and a plurality of storage tracks connected to the buffer track. A write/read unit is disposed on the magnetic structure, and a plurality of switching devices are respectively connected to the buffer track, the plurality of storage tracks,... Agent: Harness, Dickey & Pierce, P.L.C

20100232056 - Method for manufacturing magnetic recording medium, and magnetic recording/reproducing device: Provided is a process for manufacturing a magnetic recording medium having a magnetically partitioned magnetic recording patterns, which comprises the following steps, conducted in the order: (1) step of forming a magnetic layer on a non-magnetic substrate, (2) step of exposing the surface of regions of the magnetic layer to... Agent: Sughrue Mion, PLLC

20100232058 - Information recording medium glass substrate, information recording medium, information recording apparatus and manufacturing method of information recording medium glass substrate: In an information recording apparatus such as a hard disk drive, a ramp for retreating its head from a recording medium when the apparatus is stopped is provided opposing the information recording medium. In such an information recording apparatus, the information recording medium may sometimes collide with the ramp when... Agent: Sidley Austin LLP

20100232057 - Techniques for storing shingle blocks in a cache memory using a data storage device: A data storage apparatus includes a data storage medium, a write element, a non-volatile cache memory circuit, and a controller circuit. The controller circuit is configured to record data on the data storage medium in groups of overlapping tracks using the write element. The controller circuit is configured to store... Agent: Steven J. Cahill/ Hitachi Gst

20100232059 - Hard disk drive: A hard disk drive includes a base provided with a plurality of interior component parts related to reading and writing information; a cover placed on a top surface of the base with the interior component parts therebetween and assembled to the base by a plurality of screws; a gasket interposed... Agent: Stanzione & Kim, LLP

20100232060 - Disk stack assembly with spindle motor hub having improved disk-supporting flange: An improved disk stack assembly for a hard disk drive (HDD) includes a generally cylindrical hub with flange having a downward sloping conical flange surface. The conical flange surface is defined between a radially inner circular ridge and a radially outer circular edge. The bottom disk in the stack is... Agent: Thomas R. Berthold

20100232061 - Electric field information reading head, electric field information writing/reading head and fabrication methods thereof and information storage device using the same: Provided is an electric field information reading head for reading information from a surface electric charge of an information storage medium, the electric field information reading head comprising a semiconductor substrate having a resistance region formed in a central part at one end of a surface facing a recording medium,... Agent: Sughrue Mion, PLLC

20100232062 - Magnetic recording head with magnetic wall angle: A pole tip shield for a write element of a recording head is disclosed. The pole tip shield is spaced from the pole tip in the leading edge direction to provide a magnetic wall angle to reduce ATI or adjacent track erasure to compensate for the skew angle of the... Agent: Seagate Technology LLC C/o Westman, Champlin & Kelly, P.A.

20100232063 - Magnetic head cleaning mechanism and magnetic tape apparatus: In a magnetic head cleaning mechanism applicable to a magnetic tape apparatus employing a threading scheme, a cleaning brush is driven in a small space; and a magnetic tape apparatus includes the magnetic head cleaning mechanism. The mechanism includes a threading arm to engage a leader block with a leader... Agent: Sughrue Mion, PLLC

20100232064 - Hard disk drive: A hard disk drive, in which a flexible printed circuit board (FPC) bracket is readily assembled and sealed to a base together with a gasket header even though a screw or a sealing tape that involves a screw driver or other assembling tools is not used, or a boss of... Agent: Stanzione & Kim, LLP

20100232065 - Magnetic disk and method of manufacturing the same: A magnetic disc is provided with a magnetic layer, a protection layer and a lubrication layer in this order on a substrate. After successively forming the magnetic layer and the protection layer on the substrate, the protection layer is exposed to plasma under normal pressure, then, the lubrication layer is... Agent: Sughrue Mion, PLLC

20100232066 - Magneto-resistive effect element provided with gan spacer layer: A magneto-resistive effect (MR) element includes a first magnetic layer and a second magnetic layer in which a relative angle of magnetization directions of the first and second magnetic layers changes according to an external magnetic field; and a spacer layer that is provided between the first magnetic layer and... Agent: Posz Law Group, PLC

20100232067 - Media certification device design: A glide head with a slider body that has a leading edge, a trailing edge and an air bearing surface is disclosed. The glide head also has an array of thermal proximity sensing elements connected in a bridge circuit that are adjacent both the trailing edge and the air bearing... Agent: Kinney & Lange, P.A.

20100232068 - Equalization and minimization of multi-head stack assembly's motion during self servo writing and hdd operation: A disk hard disk drive that includes a spindle motor and an actuator arm coupled to a base plate. A plurality of disks are coupled to the spindle motor and a plurality of heads are coupled to the actuator arm and the disks. The drive also includes a cover attached... Agent: Irell & Manella LLP

20100232069 - Method for manufacturing head gimbal assembly, method for manufacturing hard disk drive, head gimbal assembly and hard disk drive: A method for manufacturing an head gimbal assembly (HGA) according to the present invention is comprised of: a step for preparing a thin film piezoelectric actuator including a first piezoelectric laminate having a first piezoelectric layer, and a second piezoelectric laminate having a second piezoelectric layer; a step for preparing... Agent: Oliff & Berridge, PLC

20100232070 - Apparatus of a slider limiter for protecting read-write head from non-operational shock in a hard disk drive: This application discloses a hard disk drive comprising a landing ramp mounted to a disk base including a slider limiter for at least one slider in the hard disk drive to limit movement of the sliders during a non-operational shock event while parked on the loading ramp. Each of the... Agent: Gss Law Group

20100232071 - Perpendicular magnetic recording medium, method of manufacturing the same, and magnetic recording/playback apparatus: According to one embodiment, a magnetic head includes a slider, a recording/reproduction element formed on a distal end face of the slider, and a resin film formed at least on the recording/reproduction element and the distal end face and having at least one of water repellency and oil repellency.... Agent: Knobbe Martens Olson & Bear LLP

20100232072 - Magnetic sensor with a recessed reference layer assembly and a front shield: A magnetic sensor includes a freelayer, a reference layer and a front shield. The freelayer has a magnetization direction substantially perpendicular to the planar orientation of the layer and extends to the media confronting surface. The reference layer has a magnetization direction substantially in the plane of the layer and... Agent: Kinney & Lange, P.A.

20100232073 - Magnetoresistance effect element having layer containing zn at the interface between magnetic layer and non-magnetic intermediate layer: A thin film magnetic head includes a magnetoresistive effect (MR) laminated body that has the following structure: first and second magnetic layers in which the magnetization direction of at least one of the magnetic layers changes according to an external magnetic field; the first magnetic layer is provided at a... Agent: Posz Law Group, PLC

20100232074 - Magnetoresistive effect element and magnetic disk device: A magnetoresistive effect element is structured in the manner that the antiferromagnetic layer interposed between the upper and lower shields is eliminated and the antiferromagnetic layer is positioned in a so-called shield layer. Therefore, it is realized to solve a pin reversal problem and to allow narrower tracks and narrower... Agent: Posz Law Group, PLC

20100232075 - Detection of magnetic beads using a magnetoresistive device together with ferromagnetic resonance: A method and apparatus for detecting the presence of magnetic beads is disclosed. By providing both a static magnetic field and a magnetic field that alternates in the MHz range, or beyond, the bead can be excited into FMR (ferromagnetic resonance). The appearance of the latter is then detected by... Agent: Saile Ackerman LLC

  
09/09/2010 > patent applications in patent subcategories. class, title,number

20100226032 - Control device, magnetic disk device, and iw sensitivity calculating method: According to one embodiment, a control device includes a writer, a setting module, a reader, and an Iw sensitivity acquiring module. The writer writes a signal by the magnetic head. The setting module sets an electric parameter to the magnetic head. The reader reads the signal by the magnetic head.... Agent: Knobbe Martens Olson & Bear LLP

20100226031 - Systems and methods for defective media region identification: Various embodiments of the present invention provide systems and methods for storage medium flaw detection. For example, some embodiments provide flaw detection systems that include an input circuit, a data processing circuit and a defect detection circuit. The input circuit is operable to receive an input signal and to provide... Agent: Hamilton,desanctis & Cha (lsi)

20100226033 - Systems and methods for enhanced media defect detection: Various embodiments of the present invention provide systems and methods for detecting storage medium defects. As one example, a media defect detection system is disclosed that includes a data detector circuit that applies a detection algorithm to the data input and provides a hard output and a soft output. A... Agent: Hamilton,desanctis & Cha (lsi)

20100226034 - Magnetic head, magnetic disk device, and manufacturing method of magnetic head: According to one embodiment, a magnetic disk device includes a magnetic disk, a slider opposed to the magnetic disk, and a magnetic head on the slider. The magnetic head includes a head element configured to carry out recording or reproduction, a heating element configured to thermally protrude the element, and... Agent: Knobbe Martens Olson & Bear LLP

20100226035 - Abs with lubricant control trenches for hard disk drives: A method and apparatus for controlling lubrication in hard disk drives. Hard disk drives often include lubrication on the disks to protect the disks from incidental contact with the head slider. Embodiments of the invention include lubrication control recesses on the air bearing surface (ABS) of the head slider. The... Agent: Patterson & Sheridan, L.L.P.

20100226036 - Disk drive having magnetic disk of patterned media type: According to one embodiment, a magnetic disk of a patterned media type, has a plurality of zones divided in radial direction on a magnetic recording surface. A plurality of segments which are included in each of the zones includes a data recording area composed of data recording unit of magnetic... Agent: Knobbe Martens Olson & Bear LLP

20100226037 - Combining information from parallel servo channels: A weighted combining scheme exploits information from two servo channels operating in parallel. A timing-based servo module servo module comprises two servo channels coupled respectively to receive two digital servo signals read from a data tape. Both channels have outputs for an unweighted metric and for a measure of the... Agent: Law Firm Of Dan Shifrin

20100226038 - Servo design in data storage media: A data storage medium comprises a plurality of data regions, and a plurality of servo regions configured to provide positioning information to a reading device. Each of the plurality of data regions corresponds to more than one of the plurality of servo regions. The more than one of the plurality... Agent: Western Digital Technologies, Inc. Attn: Lesley Ning

20100226039 - Combining information from parallel servo channels: A weighted combining scheme exploits information from two servo channels operating in parallel. A timing-based servo module comprises two synchronous servo channels coupled respectively to receive two digital servo signals read from a data tape. Both channels have outputs for an unweighted parameter estimate and for a measure of the... Agent: Law Firm Of Dan Shifrin

20100226040 - Recording apparatus: A recording apparatus includes: a recording head which conducts recording onto a printing medium; a supporter which supports the recording head at a recording position; and a vibration damper interposed between the recording head and the supporter. The recording head includes a recording surface facing a printing medium and a... Agent: Baker Botts LLP C/o Intellectual Property Department

20100226041 - Magnetic recording medium, method of fabricating the same, and storage apparatus: A magnetic recording medium includes a recording layer having a granular structure in which magnetic particles are dispersed within a non-magnetic base, and a non-magnetic material embedded in grooves of patterns formed on the recording layer. The magnetic particles have an inverted truncated cone shape with a diameter larger in... Agent: Sughrue Mion, PLLC

20100226042 - Magnetic disk substrate: NG surface information obtained in a defect inspecting step of a magnetic disk substrate is depicted on the magnetic disc substrate, so that the information can be discriminated at a succeeding film depositing step.... Agent: Sughrue Mion, PLLC

20100226043 - Bearing device and information recording and reproducing apparatus: Provided is a bearing device (10) capable of achieving weight reduction of a sleeve (40), and capable of suppressing distortion of the roller bearings (30a and 30b). The bearing device includes: a shaft (20); the sleeve (40) arranged on an outside of the shaft (20) while a central axis thereof... Agent: Bruce L. Adams, Esq Adams & Wilks

20100226044 - Head slider and storage medium driving device: According to one embodiment, a head slider, includes: a slider main body; an insulating nonmagnetic film laminated on an end surface of the slider main body at an air outflow side; a head element embedded in the nonmagnetic film; a heater embedded in the nonmagnetic film in association with the... Agent: Knobbe Martens Olson & Bear LLP

20100226045 - Disk drive flexure: A slit is formed between two opposite side portions of a metal base made of an electrically conductive material. The slit penetrates the metal base thicknesswise and extends longitudinally relative to the metal base. An insulating layer is formed on the metal base. A first conductor is formed within the... Agent: Frishauf, Holtz Goodman & Chick, P.C.

20100226046 - disk drive device for rotating a disk: In the brushless motor, a hub has a cylindrical separating wall in between a yoke and two magnetic recording disks. The yoke is affixed to the inner surface of the separating wall of the hub using both a press-fit and adhesion. A first convex portion and a second convex portion... Agent: Fulwider Patton LLP

20100226047 - Disk drive flexure: A flexure comprises a metal base, an insulating layer, and first and second conductors. First and second openings are formed so as to extend longitudinally relative to the metal base. These openings are formed at predetermined intervals longitudinally relative to the metal base. The metal base comprises ground regions continuous... Agent: Frishauf, Holtz Goodman & Chick, P.C. 16th Floor

20100226048 - Magneto-resistance effect element, magneto-resistance effect head, magnetic storage and magnetic memory: A magneto-resistance effect element, a magneto-resistance effect head, a magnetic storage and a magnetic memory, in which noise caused by a spin-transfer torque is reduced, are provided. In a fixed magnetization layer or a free magnetization layer of a magneto-resistance effect element including the fixed magnetization layer, a spacer layer... Agent: Nixon & Vanderhye, PC

  
09/02/2010 > patent applications in patent subcategories. class, title,number

20100220408 - Disk drive with multi-protocol channel to controller interface and method: An apparatus includes a disk arrangement, a first signal processing path configured to output data from the disk arrangement according to a first protocol, a second signal processing path configured to output data from the disk arrangement according to a second protocol, and an interface including a set of electrical... Agent: Workman Nydegger 1000 Eagle Gate Tower

20100220409 - Magnetic storage medium, information storage device, and control device: According to one embodiment, a magnetic storage medium, includes a magnetic recording layer that includes: a servo area including predetermined servo information; a user data area including predetermined user information; two preamble areas including a plurality of magnetic bodies made of magnetic particles, the magnetic bodies being arranged in a... Agent: Knobbe Martens Olson & Bear LLP

20100220410 - Tape architecture and a head architecture for a linear tape drive having a reduced actuator stroke: A tape architecture and a head architecture for a linear tape drive having a reduced actuator stroke is disclosed. In one embodiment, the linear tape drive head assembly includes a top portion having a plurality of write elements and no read elements at a first side and a plurality of... Agent: Baker Botts L.L.P.

20100220411 - Information recording media, method of manufacturing the information recording media, read/write head, and method of manufacturing the read/write head: An information recording medium, a method of manufacturing the information recording medium, a read/write head, and a method of manufacturing the read/write head are provided. The information recording medium includes magnetic recording layers formed of a ferromagnetic substance and electrical recording layers formed of a ferroelectric substance. The read/write head... Agent: Sughrue Mion, PLLC

20100220412 - Manufacturing method of disk drive device capable of reducing amount of unbalance, disk drive device and subassembly thereof: A disk drive device is provided with a recording disk, a base member, a bearing unit, and a hub member. In a marking step, unbalance information indicating the displacement of the center of gravity of the hub member with respect to the rotation center of the hub member is acquired,... Agent: Fulwider Patton LLP

20100220413 - Slider support mechanism, spring force control method and spring force controller: According to one embodiment, a slider support mechanism includes a flexure includes a distal end portion on a front side mounted with a slider includes a magnetic head configured to record/reproduce data on/from a recording medium, a hinge plate configured to produce spring force urging the slider toward the recording... Agent: Knobbe Martens Olson & Bear LLP

20100220414 - Head gimbal assembly without bus traces for plating: Head gimbal assemblies for data storage systems are provided. Some embodiments include a dielectric layer having a first and a second side. A first conductive layer is on the first dielectric layer. The first conductive layer includes a pad and a trace. A second conductive layer is on the second... Agent: Seagate Technology LLC C/o Westman, Champlin & Kelly, P.A.

20100220415 - Magnetic recording head and magnetic recording apparatus: A magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic field... Agent: Nixon & Vanderhye, PC

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