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Dynamic magnetic information storage or retrieval December patent applications/inventions, industry category 12/09

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.
12/31/2009 > patent applications in patent subcategories. patent applications/inventions, industry category

20090323212 - Handling robot of magnetic head assembly, magnetic head test method and magnetic head tester: An upward warp of a terminal pad of a flexible cable which is kept horizontal by a suction head is prevented by a pressing arm which contacts with an upper surface of a rear portion of the flexible cable.... Agent: Mattingly & Malur, P.C.

20090323209 - Method for measuring magnetic write width in discrete track recording: A method of measuring a magnetic write width of a magnetic head MWWHEAD and a magnetic write width of a discrete track medium MWWMEDIUM, which is insensitive to possible distortion in the track profile in discrete track recording (DTR) is provided. A method of measuring a magnetic write width includes... Agent: Oliff & Berridge, PLC

20090323211 - New data pattern for fly height measurement: A hard disk drive that includes a disk and a head that is separated from the disk by a flying height. The disk drive also includes a circuit that determines the flying height from an equation that uses a third harmonic of a read signal. The read signal includes a... Agent: Irell & Manella LLP

20090323210 - Shroud for head gimbal assembly testing: In one implementation, an assembly for testing a head gimbal assembly comprises a rotatable test disc, a mounting surface configured to mount the head gimbal assembly, and a shroud covering the head gimbal assembly. The mounting surface is located in proximity to the test disc to facilitate loading the head... Agent: Shumaker & Sieffert, P.A.

20090323213 - Servo signal recording method and magnetic disk apparatus: An MCU included in a magnetic disk apparatus determines, as a defective track, a track in which a servo signal abnormality is generated in a servo sector of the magnetic disk, and performs control to rewrite the servo signal to the defective track based on servo signal information for one... Agent: Greer, Burns & Crain

20090323214 - Modulated disk lock clock and methods for using such: Various embodiments of the present invention provide systems and methods for controlling access to a magnetic storage medium. As one example, a method for controlling access to a storage medium is disclosed that includes calculating a point to point error amount, and generating a incremental error value based at least... Agent: Hamilton,desanctis & Cha (lsi)

20090323215 - Head position control device, magnetic disk device, and head position control method: According to one embodiment, a head position control device includes a positioning controller, a sensor, and a storage module. The positioning controller outputs, to a head moving mechanism that moves a head in the radial direction of a magnetic disk, a control signal indicating a position to which the head... Agent: Knobbe Martens Olson & Bear LLP

20090323216 - Storage apparatus and storage medium: A storage apparatus includes: a magnetic recording disk having discrete magnetic dots forming circular tracks coaxial with a rotation axis; a rotary actuator supporting a head slider facing the magnetic recording disk, the rotary actuator coupled to a pivot bearing shaft parallel to the rotation axis; and read and write... Agent: Greer, Burns & Crain

20090323217 - Storage slot for data storage cartridges of differing dimensions: A storage slot for removably holding and aligning data storage cartridges of differing dimensions. Two bowed leaf springs are positioned within the storage slot, at two side walls and opposite from, respectively, two opposite side walls. The bowed leaf springs extend in a direction parallel to a direction of insertion... Agent: John H. Holcombe IBM Corporation,IPLaw Dept.

20090323218 - Access records on tape medium auxiliary memory device: Described is a tape library which can generally include a tape drive, a tape cartridge that possesses a medium auxiliary memory device, a device for reading information retained on the medium auxiliary memory device and a program that runs on a processor capable of manipulating information received by the reading... Agent: Spectra Logic Corporation

20090323219 - Magnetic recording medium, method for production thereof and magnetic recording and reproducing device: A method for the production of a magnetic recording medium (30) includes the steps of depositing a magnetic layer or Co-containing magnetic layer (3) on at least one side of a nonmagnetic substrate (1) and partially implanting atoms into the magnetic layer or Co-containing magnetic layer to partially unmagnetize the... Agent: Sughrue Mion, PLLC

20090323220 - Head arm assembly, information storage device and suspension: A head arm assembly includes: a slider which has a head executing recording and/or reproducing operations of information onto and/or from an information recording medium, and which approaches or comes into contact with the information recording medium, a leaf spring holding the slider at its one end, an arm holding... Agent: Greer, Burns & Crain

20090323221 - Head stack assembly and disk drive unit provided with the same: According to one embodiment, a head stack assembly includes stack members stacked on a bearing unit, a suspension and a head on one of the stack members, and an elastic member being between the stack members to damp vibration when there is the vibration which is transmitted from the bearing... Agent: Knobbe Martens Olson & Bear LLP

20090323223 - Head gimbal mechanism and information recording/reproducing apparatus: There is provided a head gimbal mechanism 2 including a slider 10 placed between a recording medium D and a beam 11 and having a device generating near-field light, gimbal means 12 for fixing the slider to the tip of the beam 11 at a state that it can rotate... Agent: Bruce L. Adams Adams & Wilks

20090323222 - Thin film magnetic head, magnetic head slider, head gimbal assembly, head arm assembly, magnetic disk device and method of manufacturing thin film magnetic head: In manufacturing the thin film magnetic head, the rear end face of the MR element and the rear end face of a resistive film pattern are determined with high precision using a mask pattern, in which a first opening and a second opening are collectively formed. The first and second... Agent: Oliff & Berridge, PLC

20090323224 - Head gimbals assembly of hard disk and method of assembling thereof: Disclosed is a head gimbals assembly for a hard disk for use in a thermally assisted magnetic disk recording medium, in which a laser diode is applied so as to record information with high density, and a method of assembling such a head gimbals assembly. The head gimbals assembly for... Agent: Sughrue Mion, PLLC

20090323225 - Baseplate interconnect: An actuator and associated method is provided, the actuator having an arm defining an aperture, an electrical circuit supported by the arm and terminating at a contact, a flexure assembly defining a boss and supporting a second electrical circuit terminating at a second contact, wherein the contacts are resultingly positioned... Agent: Mccarthy Law Group

20090323226 - Information storage device: An information storage device that includes: a housing; a disc-shaped recording medium to record data thereon, rotating along a disc surface to generate a wind inside the housing; a head capable of recording and/or reproducing data on and/or from the recording medium; an arm holding the head on its tip... Agent: Greer, Burns & Crain

20090323227 - Ta/w film as heating device for dynamic fly height adjustment: A dynamic fly heater (DFH) for improved lifetime and better film uniformity is disclosed for a magnetic head. The heater has a lower amorphous Ta layer and an upper W layer to promote small grain size and reduced electro-migration. The composite film is especially advantageous for heaters greater than 1000... Agent: Saile Ackerman LLC

20090323229 - Modified shield shape for perpendicular recording head to reduce sensitivity to external fields: In a read-write head, the shields can serve as magnetic flux conductors for external fields, so that they direct a certain amount of flux into the recording medium. This problem has been overcome by the addition to the shields of a pair of tabs located at the edges closest to... Agent: Saile Ackerman LLC

20090323228 - Tunneling magnetoresistive (tmr) device with improved ferromagnetic underlayer for mgo tunneling barrier layer: A tunneling magnetoresistance (TMR) device, like a TMR read head for a magnetic recording hard disk drive, has a magnesium oxide (MgO) tunneling barrier layer and a ferromagnetic underlayer beneath and in direct contact with the MgO tunneling barrier layer. The ferromagnetic underlayer comprises a crystalline material according to the... Agent: Thomas R. Berthold

20090323230 - Magnetic sensor: A magnetic sensor comprises a support; a nonmagnetic conductive layer disposed on the support; a fixed magnetization layer disposed on a first part of the nonmagnetic conductive layer and on the support; a free magnetization layer disposed on a second part of the nonmagnetic conductive layer different from the first... Agent: Oliff & Berridge, PLC

12/24/2009 > patent applications in patent subcategories. patent applications/inventions, industry category

20090316287 - Method and system for writing information to a tape cartridge: A tape drive system for a tape cartridge including a tape and wireless identification tag may read information from the wireless identification tag and write the information to the tape. The tape drive system may toggle a bit stored on the wireless identification tag to indicate that the information has... Agent: Brooks Kushman P.C. / Sun / Stk

20090316288 - Method for testing magnetic recording medium and method for producing magnetic recording medium: t

20090316289 - Magnetic disk for thermally assisted magnetic recording and magnetic disk applying the same therein: A magnetic disk, comprises, a magnetic disk, a disk driving portion for driving the magnetic disk, a slider, mounting thereon a recording element and a reproducing element, for generating a recording magnetic field, and a heating element for use in generation a near field light, and a driver portion for... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090316294 - Head positioning control method, magnetic disk apparatus and feedback control method: According to one embodiment, a head positioning control method comprises suppressing a first frequency component and increasing a second frequency component of a control signal for moving a head to a desired position over a magnetic disk, and moving the head to the desired position over the magnetic disk by... Agent: Knobbe Martens Olson & Bear LLP

20090316292 - Magnetoresistive heads and magnetic recording device: A magnetoresistive head is provided with high reliability and produced at a high yield rate. The magnetoresistive head includes a lower magnetic shield layer, an upper magnetic shield layer, a magnetoresistive effect film, and means for causing a current to flow in the direction of the thickness of the magnetoresistive... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090316293 - Posture adjustment method of magnetic head: A posture adjustment method of magnetic heads includes a method in which a magnetic head initial position adjustment apparatus 11 measures an initial position of the magnetic head 1 which was moved and adjusted, and writes the initial position into an adjustment position information shared apparatus 10, a magnetic head... Agent: Ratnerprestia

20090316290 - Systems and methods for writing servo patterns: A method for writing a servo track according to one embodiment comprises monitoring a lateral position of a magnetic tape passing over a servo writing head during a servo track writing operation; and writing servo marks to the magnetic tape, a timing of the writing of each mark being based... Agent: Zilka-kotab, PC- Ibm

20090316291 - Tandem magnetic writer: A magnetic head in one embodiment comprises a pole; a first write gap in the pole; a first coil for generating a magnetic flux across the first write gap; a second write gap in the pole having at least a portion thereof aligned with the first write gap in a... Agent: Zilka-kotab, PC- Ibm

20090316295 - Method of servo writing, method of compensating phase mismatch of servo pattern and hard disk drive on which the methods are implemented: A method of servo writing for each track of a magnetic recording medium divided into a plurality of circular tracks including performing a phase adjustment operation by controlling a phase of a recording current according to a skew angle formed by a magnetic head and a track of the magnetic... Agent: Stanzione & Kim, LLP

20090316296 - Servo control in tape drives: Servo control methods and apparatus for a tape drive. A read/write head reads and writes data on magnetic tape with at least one servo track providing transverse position information. At least two servo readers arranged for reading a servo track associated with the read/write head operate concurrently to generate servo... Agent: Ibm Corporation, T.j. Watson Research Center

20090316297 - Servo master and magnetic transfer method using the same: A servo master having a pattern capable of being magnetically transferred as a servo pattern to a magnetic recording medium, wherein the servo master is formed of a material having a magnetic anisotropic constant perpendicular to a surface of the magnetic recording medium. The magnetic transfer method can include preparing... Agent: Stanzione & Kim, LLP

20090316298 - Magnetic disk device and head slider: A head slider suppresses variation in a floating amount of the head slider, floating over a discrete medium, even when the floating amount is small. Among a plurality of pads of the head slider, the shape of the pad provided on the outflow end portion is formed of a wedge... Agent: Greer, Burns & Crain

20090316299 - Disk drive device having airtight structure with improved airtightness: A disk drive device is configured such that a wall of a base plate is provided with a through hole that guides a lead from a drive unit outside. The through hole is covered by a sealing sheet having an insertion hole. The lead is guided from inside the housing... Agent: Fulwider Patton LLP

20090316300 - Printed circuit board and method of manufacturing the same: A first insulating layer is formed on a suspension body. Wiring traces are formed in parallel at an interval on the first insulating layer. A second insulating layer is formed in a region on the first insulating layer on both sides of the wiring traces. A wiring trace is formed... Agent: Panitch Schwarze Belisario & Nadel LLP

20090316301 - Magnetic field sensor for patterned media: An apparatus for sensing magnetic domains in a patterned media that includes a first sensing element and a second sensing element in electrical communication with the first sensing element. The first sensing element has an output voltage lead and the second sensing element has an output voltage lead. The patterned... Agent: Pietragallo Gordon Alfano Bosick & Raspanti, LLP

20090316302 - Magnetic head and magnetic disk unit: A magnetic head includes: a slider which floats above a recording medium by air flow generated by rotation of the recording medium; and an element forming section fixed to an air outflow side of the slider and formed with an element which accesses the recording medium. The element forming section... Agent: Greer, Burns & Crain

20090316303 - Magnetic head assembly: A magnetic head assembly includes: a magnetic recording head, a head slider, a suspension and an actuator arm. The magnetic recording head includes a spin torque oscillator and a main magnetic pole. The spin torque oscillator includes, a first magnetic layer including at least one selected from the group consisting... Agent: Nixon & Vanderhye, PC

20090316304 - Magnetic head assembly and magnetic recording apparatus: A magnetic head assembly includes a magnetic recording head, a main magnetic pole, a head slider, a suspension and an actuator arm. The magnetic recording head includes a main magnetic pole having an air bearing surface facing a magnetic recording medium; and a stacked structure having, a first magnetic layer,... Agent: Nixon & Vanderhye, PC

20090316305 - Vibration reducing head suspension mechanism for a magnetic disc unit: There is provided a head suspension mechanism capable of more effectively restraining sway mode and second-order torsion mode vibrations of the head suspension mechanism caused by an air flow. A flange portion having a free end portion 23c on the base part side is formed at both edges close to... Agent: Young & Thompson

20090316306 - Thin film piezoelectric element and its manufacturing method, head gimbal assembly and disk drive unit with the same: A thin film piezoelectric element includes a piezoelectric thin film layer, a seed layer and an elastic substrate layer. The piezoelectric thin film layer is a laminated structure comprising a first electrode layer, a second electrode layer and a piezoelectric layer sandwiched between the first electrode layer and the second... Agent: Nixon & Vanderhye, PC

20090316307 - Method and apparatus to improve channel quality for use in wireless communications systems with multiple-input multiple-output (mimo) antennas: Apparatus and method that employ a technique which improves SINR in a communication system utilizing MIMO antennas are described. Transmitter and receiver components use fixed transmit and receive beamforming matrices and variable transmit and receive beamforming vectors. A method of channel conditioning using an iterative closed loop process is also... Agent: Volpe And Koenig, P.C. Dept. Icc

20090316308 - Self-pinned cpp giant magnetoresistive head with antiferromagnetic film absent from current path: A CPP giant magnetoresistive head includes lower and upper shield layers, and a giant magnetoresistive element disposed between the upper and lower shield layers and including a pinned magnetic layer, a free magnetic layer and a nonmagnetic layer disposed between the pinned magnetic layer and the free magnetic layer. In... Agent: Brinks Hofer Gilson & Lione

20090316309 - Hybrid trackwidth read element: A magneto-resistive (MR) device for reading at least one of a legacy data signal and a present data signal magnetically recorded on at least one legacy track and a least one present track, respectively, is provided. The device comprises first and second MR elements, and first, second, and third permanent... Agent: Brooks Kushman P.C. / Sun / Stk

12/17/2009 > patent applications in patent subcategories. patent applications/inventions, industry category

20090310240 - Coding technique for correcting media defect-related errors and random errors: A method of writing data on a storage medium that takes into account a condition of the storage medium. The method includes receiving data to be written on a portion of a storage medium and encoding the data based on a condition of the portion of the storage medium. The... Agent: Seagate Technology LLC C/o Westman, Champlin & Kelly, P.A.

20090310242 - Hard disk storage system: An improved method and apparatus for data storage on hard disk drives (HDD) is described. The method and apparatus employ sequential data recording techniques ideal for sequential recording applications thus enabling the production of cheaper, more reliable and conveniently accessible systems. The sequential recording method may be employed with arrays... Agent: Workman Nydegger 1000 Eagle Gate Tower

20090310241 - Method of operating information storage device using magnetic domain wall movement: A method of operating an information storage device using a magnetic domain wall movement in a magnetic nanowire is provided. The magnetic nanowire includes a plurality of magnetic domains and pinning sites formed in regions between the magnetic domains. The method includes depinning the magnetic domain wall from a first... Agent: Harness, Dickey & Pierce, P.L.C

20090310243 - Magnetic head and magnetic storage device: A magnetic head that floats up while directing an air bearing surface to a relatively moving storage medium and stores information into the storage medium, the magnetic head includes: a main magnetic pole that generates a magnetic field for recording information into the storage medium; and a heater that adjusts... Agent: Greer, Burns & Crain

20090310247 - Head control apparatus, head control method, and magnetic disk apparatus: There is provided a head control apparatus that controls the flying height of a head with respect to a disk by controlling heater current supplied to a heater for head protrusion adjustment. The head control apparatus includes: an acquisition section that acquires flying height information which is information concerning a... Agent: Greer, Burns & Crain

20090310246 - Head flying height control method, write current value determining method, and storage device: A head flying height control method includes the steps of: detecting contact of a head having a heater with a corresponding storage medium, and associating the amount of heat generated by the heater when the contact is detected with a situation where the flying height of the head is zero;... Agent: Greer, Burns & Crain

20090310245 - Method of controlling the position of a read/write head and apparatus for testing a read/write head: A method of controlling the position of a read/write head relative to a disk in a test apparatus is disclosed. The test apparatus has a positioner for positioning the head. The positioner has a sensor to measure the actual position achieved by the positioner. The method includes generating a sensor... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20090310244 - Thin-film magnetic head for microwave assist and microwave-assisted magnetic recording method: Provided is a thin-film magnetic head that can stably generate electromagnetic field with a desired frequency, even under the existence of significantly strong write field with frequently reversed direction. The head comprises an electromagnetic-field generating element between the first and second magnetic poles. The electromagnetic-field generating element comprises a spin-wave... Agent: Frommer Lawrence & Haug

20090310248 - Thin-film magnetic head with variable-volume cavity in medium-opposed surface: Provided is a thin-film magnetic head in which the magnetic spacing can be appropriately controlled by dynamically and accordingly, by adjusting the pressure working between the thin-film magnetic head and the magnetic recording medium according to the change of conditions such as the change over time. The thin-film magnetic head... Agent: Oliff & Berridge, PLC

20090310249 - Write-once type storage apparatus, control circuit, and control method: A recording processing unit sets a track pitch narrower than a writing width of a recording element so that part of the recorded track overlapped with the unused track is overwritten, and continuously records information on a disk medium toward one direction in accordance with the track pitch. A first... Agent: Greer, Burns & Crain

20090310250 - Magnetic disk drive having dual actuator: In a dual-stage actuator magnetic drive having a coarse actuator and a fine actuator, an amplitude level of a command signal for the fine actuator during a decoupling-path control depends on a gain of an applied fine actuator model. The fine actuator model gain depends on the amplitude level of... Agent: Pequignot + Myers LLC

20090310251 - Information recording apparatus: The information recording apparatus of the present invention includes N servo heads. Servo signals outputted respectively from the servo heads are delayed by a delay circuit such that the peaks of the waveforms of the servo signals coincide with each other. The delayed servo signals are added up by an... Agent: Birch Stewart Kolasch & Birch

20090310252 - Information storing apparatus: A disclosed information storing apparatus includes a rotatably-mounted memory medium; a carriage arm having a head at its tip; a flow rectifying wall configured to lead a partial airflow of a rotational airflow flowing in a rotation direction of the memory medium and rectify the partial airflow, and including an... Agent: Greer, Burns & Crain

20090310253 - Electronic storage cartridge: According to the invention, an electronic data storage cartridge for removable coupling to a computing system is disclosed. The electronic data storage cartridge includes a cartridge body, a connector, an optical waveguide, a hard disk drive, and a mechanical write-protect switch that prevents modification of information on the hard disk... Agent: Townsend And Townsend And Crew, LLP

20090310255 - Magnetic recording medium and magnetic recording and reproducing apparatus: A highly reliable magnetic recording medium is provided which has a recording layer formed in a concavo-convex pattern and wherein the recording layer is unlikely to cause a change in magnetic properties. The magnetic recording medium includes a substrate, a recording layer formed in a predetermined concavo-convex pattern over the... Agent: Oliff & Berridge, PLC

20090310254 - Magnetic recording medium and magnetic recording/reproduction apparatus using the same: According to one embodiment, a recording track has a surface modification layer in the surface region. This surface modification layer has an anisotropic magnetic field Hk reduced from that of a region between adjacent recording tracks.... Agent: Knobbe Martens Olson & Bear LLP

20090310256 - Method for making a master mold with high bit-aspect-ratio for nanoimprinting patterned magnetic recording disks, master mold made by the method, and disk imprinted by the master mold: A method for making a master mold to be used for nanoimprinting patterned-media magnetic recording disks results in a master mold having topographic pillars arranged in a pattern of annular bands of concentric rings. The ratio of circumferential density of the pillars to the radial density of the concentric rings... Agent: Thomas R. Berthold

20090310257 - Head slider and magnetic storage device with head slider: A head slider includes a slider that is disposed at a tip of a supporting member, floats with an air flow occurring due to rotation of a storage medium, and has a medium facing surface onto which a water-repellent material is applied, with an area near the magnetic head being... Agent: Greer, Burns & Crain

20090310258 - Head, head suspension assembly, and disk device provided with the same: According to an embodiment, a slider of a head comprises a negative-pressure cavity formed in a facing surface, a leading step portion situated on an inflow side of the negative-pressure cavity, a pair of side portions opposed to each other, a trailing step portion situated on an outflow side of... Agent: Patterson & Sheridan, L.L.P.

20090310259 - Head, head suspension assembly, and disk device provided with the same: According to one embodiment, a slider of a head comprises a negative-pressure cavity formed in a facing surface, a leading step portion situated on the upstream side of the negative-pressure cavity, a pair of side portions opposed to each other, a trailing step portion situated on the outflow side of... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090310260 - Magnetic head suspension: A magnetic head suspension having a thin metallic plate as a substrate which is caused to have a new function besides a function as a spring. The magnetic head suspension plural lines for connecting a magnetic head and a control circuit board to each other are formed over a thin... Agent: Ladas & Parry LLP

20090310261 - Information storage device: An information storage device includes: a disk-like rotatable recording medium; and a head reproducing information from and/or recording information into the recording medium. The device further includes: a fixed portion having and turns around a turning axis extending in the same direction as a rotation axis of the recording medium;... Agent: Greer, Burns & Crain

20090310262 - Composite writer shield for improving writer performance: A PMR writer in a read/write head is disclosed wherein an upper shield covering the coil layer is comprised of a magnetic layer optimized for magnetic performance and a second layer used for tuning mechanical protrusion. The composite layer simultaneously provides high saturation magnetization and high permeability from the magnetic... Agent: Saile Ackerman LLC

20090310263 - Magnetic sensor: A magnetic sensor comprises a nonmagnetic conductive layer, a free magnetization layer disposed on a first part of the nonmagnetic conductive layer, a fixed magnetization layer disposed on a second part of the nonmagnetic conductive layer different from the first part, upper and lower first magnetic shield layers opposing each... Agent: Oliff & Berridge, PLC

12/10/2009 > patent applications in patent subcategories. patent applications/inventions, industry category

20090303627 - Magnetic transfer master carrier, magnetic transfer method, and magnetic recording medium: A magnetic transfer master carrier including a base material having, in its surface, convex portions arranged correspondingly to a pattern of information to be recorded on a perpendicular magnetic recording medium, and a magnetic layer having perpendicular magnetic anisotropy, the layer being provided on top and side surfaces of the... Agent: Young & Thompson

20090303628 - Data managing method, information storage apparatus, and data mangement circuit: A magnetic disk device regularly monitors an abnormality in heads and, when detecting an abnormality in any head, transfers data in each cell corresponding to the head where the abnormality is detected to a replacement cell corresponding to another head. Then, in a management table, the magnetic disk device updates... Agent: Greer, Burns & Crain

20090303629 - Magnetic recording/reproducing apparatus and method for determining magnetic recording condition: A magnetic recording/reproducing apparatus 100 includes: a magnetic head 1; a magnetic recording medium 2; a spindle 3 and a spindle motor 4; a suspension arm 5; a voice coil motor 6; and a control unit 7. The control unit 7 has: a motor driver 8; a head amplifier 9;... Agent: Birch Stewart Kolasch & Birch

20090303630 - Method and apparatus for hard disk power failure protection: The present invention relates to a method and an apparatus for hard disk power failure protection. The method includes receiving power from a battery through a battery power input wire when the hard disk drive is out of power, supplying battery power to the cache of the hard disk drive,... Agent: Mcdonnell Boehnen Hulbert & Berghoff LLP

20090303631 - Magnetic racetrack memory device including write-back loop: A magnetic racetrack memory device includes; a magnetic track having a plurality of magnetic domains partitioned by at least one magnetic domain wall, a current source applying current to the magnetic track sufficient to move the at least one magnetic domain wall and the plurality of magnetic domains along the... Agent: Volentine & Whitt PLLC

20090303632 - Scheduling spin-up operations for a set of hard disk drives: Some embodiments of the present invention provide a system for scheduling spin-up operations for a set of hard disk drives (HDDs) in a computer system. During operation, the system determines an available power of the computer system. Next, one or more HDDs are selected from the set of HDDs to... Agent: Pvf -- Sun Microsystems Inc. C/o Park, Vaughan & Fleming LLP

20090303633 - Same wrap backhitchless write method to encode data on a tape storage medium: A method to write information to a tape storage medium by disposing a tape storage medium in a tape drive apparatus comprising a write head. The method moves the tape storage medium in a first direction, writes data from a buffer to the tape storage medium, and thereby empties the... Agent: Daniel Small

20090303634 - Advanced heater-assisted media burnishing head media burnish process: A method and system for cleaning and/or burnishing an article. The article is operated on by a burnishing object having one more cutting edges and one or more heating surfaces. The article rotates relative to the burnishing head and the cutting edges remove asperities from the article. The heating surface... Agent: Shumaker & Sieffert, P.A.

20090303635 - Servo pattern architecture and method using same to improve lpos encoding efficiency: A sequential data storage medium, such as for example and without limitation a magnetic tape, comprising a sequence of plurality of servo patterns encoded therein, which provide lateral position information and LPOS information. Each servo pattern comprises a first burst comprising a first pulse, a second pulse, a third pulse,... Agent: Dale F. Regelman Quarles & Brady, LLP

20090303636 - Method of reclaiming head suspension, method of manufacturing head suspension, and method of reclaiming work: A method of reclaiming a head suspension includes detaching a slider 225 from a tongue 221 of the head suspension and removing an adhesive 227 remaining on the tongue 221. Removing the adhesive 227 remaining on the tongue 221 includes feeding a solvent 243, which promotes the removal of the... Agent: Jordan And Hamburg LLP

20090303637 - Disk drive having a head loading/unloading ramp that includes a torsionally-compliant member: A disk drive includes a ramp having a fixed portion that is fixed to the disk drive base, and a guide portion that is not. The guide portion includes a guide surface having a parking region that is in contact with an HGA lift-tab with the disk drive in a... Agent: Western Digital Technologies, Inc. Attn: Lesley Ning

20090303638 - Magnetoresistance device: A magnetoresistance device has a channel extending between first and second ends in a first direction comprising non-ferromagnetic semiconducting material, such as silicon, a plurality of leads connected to and spaced apart along the channel, a gate structure for applying an electric field to the channel in a second direction... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090303639 - Magnetoresistance device: A device capable of exhibiting the extraordinary magnetoresistance (EMR) effect includes an elongate channel formed of silicon. A conductor comprising heavily doped silicon is connected to the channel along one side of the channel so as to provide a shunt. A gate arrangement including a gate electrode is provided on... Agent: Antonelli, Terry, Stout & Kraus, LLP

20090303640 - Magneto-resistance effect element provided with current limiting layer including magnetic material: A magneto resistance effect element includes a first magnetic layer, a second magnetic layer and a spacer layer interposed between the first and second magnetic layers. The magneto resistance effect element is configured to allow sense current to flow in a direction that is perpendicular to film planes of the... Agent: Knobbe Martens Olson & Bear LLP

12/03/2009 > 36 patent applications in 18 patent subcategories. patent applications/inventions, industry category
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