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Dynamic magnetic information storage or retrieval January USPTO class listing 01/08

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.
  
01/31/2008 > patent applications in patent subcategories. USPTO class listing

20080024893 - Slider form factor electronic device with improved low band performance: An electronic device is provided that includes a housing having an upper slider portion and a lower slider portion. The upper slider portion and the lower slider portion are slidably engaged to permit relative sliding motion therebetween along a sliding axis. The electronic device further includes an upper printed circuit... Agent: Warren A. Sklar (soer) Renner, Otto, Boisselle & Sklar, LLP

20080024895 - Method and apparatus of attachment of information: The present invention provides a method and an apparatus for attaching information, which edits a parameter of the information to be attached and a parameter of the corresponding specific content into a synchronous playing file using a mark language. When played subsequently, the playing apparatus plays (HTMC, XML, SMIL) the... Agent: Philips Intellectual Property & Standards

20080024896 - Heat-assisted magnetic recording method using eddy current and head for heat-assisted magnetic recording: A heat-assisted magnetic recording method is provided, which comprises steps of: heating a portion of a magnetic recording layer included in a magnetic recording medium by generating an eddy current with applying a high-frequency magnetic field to said portion or a portion near said portion; applying a write magnetic field... Agent: Oliff & Berridge, PLC

20080024897 - Recording method, unload method, and magnetic disk: Embodiments of the present invention prevent occurrence of a write pole erasure in the event of a power failure within a magnetic disk apparatus of a perpendicular magnetic recording system. According to one embodiment of the present invention, a recording current is flowed through a magnetic head to record data... Agent: Townsend And Townsend And Crew LLP

20080024898 - High bandwidth data transfer to and from rotating data storage devices: A method of transferring data of one or more rotatable data storage devices includes but is not limited to rotating the at least one rotatable data storage device; transferring the data between a plurality of stationary data transfer heads and the one or more rotatable data storage devices; and using... Agent: Searete LLC Clarence T. Tegreene

20080024899 - Disk drive with nonvolatile memory having multiple modes of operation: A hybrid disk drive, i.e., a disk drive with two types of permanent storage media (conventional disk media and nonvolatile memory, such as flash memory), uses its nonvolatile memory in operational modes other than the power-save or “standby” mode wherein the disks are spun down. In a first additional mode,... Agent: Thomas R. Berthold

20080024904 - Synchronous servo channel for tape drive systems: A fully synchronous servo channel for a data tape drive is provided which includes the initial acquisition of synchronous servo channel parameters, generation of a timing basis for signal interpolation, generation of a tape velocity estimate and a y-position estimate and an optimum detection of longitudinal position (LPOS) symbols embedded... Agent: Law Office Of Dan Shifrin, PC - Ibm

20080024905 - Concurrent servo and data track writing: The invention is directed to techniques for storing information on a linear data storage medium, such as magnetic tape. According to the invention, a write head array concurrently writes a plurality of data tracks and at least one servo track onto the magnetic tape. In this way, the servo track... Agent: Imation Corp. Attention: Eric D. Levinson

20080024906 - Head position control method, head position control device and disk device: In a head position control device having a disturbance suppression function and eccentricity correction function, the interference between the eccentricity correction function and the disturbance suppression function is prevented. An eccentricity correction function and disturbance suppression control function are provided in the head positioning control system, and an interference prevention... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20080024907 - Settling judgment method for position control device and position control device: In a settling judgment method for judging whether an object is settled at a target position, a margin for settling judgment is expanded, and settling is judged accurately. As the settling judgment formula of the settling judgment block, both the position error and the added value of the position errors... Agent: Greer, Burns & Crain

20080024909 - Application of pfpes for hdd screw lubricant: The present invention relates to HDD screws, and more specifically to lubricating the HDD screws. HDD screws may be coated in a layer of a PFPE based lubricant to reduce friction while fastening the screw into a HDD. In addition to providing superior lubricity and reduced friction during fastening and... Agent: Patterson & Sheridan, L.L.P.

20080024894 - Magnetic recording and reproducing device: This invention provides a magnetic recording and reproducing device, having a recording media with a diagnostic area to which diagnostic data is written, and a computation unit having a program area which determines the possibility of erroneous reading of data read out from the recording media and a memory area... Agent: Kratz, Quintos & Hanson, LLP

20080024900 - Magnetic head and magnetic disc drive: Embodiments in accordance with present invention provide a magnetic head and a magnetic disc drive capable of preventing a side erase while providing excellent recording characteristics. According to one embodiment, in order to prevent the side erase in an increased skew angle state, a first magnetic pole surface is formed... Agent: Townsend And Townsend And Crew LLP

20080024901 - Library device: A feeding mechanism includes a first feeding mechanism and a second feeding mechanism that operates during non-operation of the first feeding mechanism. A movement control unit that performs a control of moving the feeding mechanism towards a housing cabinet. A swivel mechanical unit swivels an inclination angle of the feeding... Agent: Staas & Halsey LLP

20080024902 - Addressable flexible patterns: Techniques, methods, systems, and apparatus are disclosed that are useful for creating addressable three-dimensional elements formed on a flexible substrate using continuous roll-to-roll fabrication methods. An array of conductive elements can be formed on a first flexible substrate layer, over which is disposed a second polymer layer containing a three-dimensional... Agent: Mcdermott Will & Emery LLP

20080024903 - Disk-type storage medium driving apparatus and disk-type storage medium rotation speed control method: A rotation speed of a disk-type storage medium is suitably controlled in order to save power and to reduce noise in a disk-type storage medium driving apparatus provided with one or more communication interfaces. A disk-type storage medium driving apparatus that can switch rotation speed of a disk-type storage medium,... Agent: Antonelli, Terry, Stout & Kraus, LLP

20080024908 - Magnetic disk device: Embodiments in accordance with the present invention improve bonding reliability in a feedthrough sealing portion. According to one embodiment of the present invention, an opening of a through hole is provided on the bottom of the base of the magnetic disk device and a feedthrough mounting plane which is one... Agent: Townsend And Townsend And Crew LLP

20080024910 - Electric field assisted writing using a multiferroic recording media: An apparatus comprises a data storage medium including a piezoelectric material and a ferromagnetic material, an electric field source for applying an electric field to a portion of the data storage medium, and a write pole for applying a magnetic field to the portion of the data storage medium. A... Agent: Pietragallo, Bosick & Gordon LLP

20080024911 - Magnetic head for perpendicular magnetic recording and method of manufacturing same: A shield incorporates: a first layer, a second layer, a third layer, a first coupling portion, and a second coupling portion. The first layer has: a first surface located in a region of a medium facing surface forward of an end face of a pole layer along the direction of... Agent: Oliff & Berridge, PLC

20080024912 - Techniques to reduce adjacent track erasure: Techniques for reducing adjacent track erasure include: a bucking coil having a lower number of turns than the write coil for bucking out a portion of the field induced by the write coil; a hybrid solenoid coil that includes turns that are in a pancake arrangement and turns that are... Agent: Foley & Lardner

20080024913 - Low inductance, ferrite sub-gap substrate structure for surface film magnetic recording heads: A thin film magnetic recording head is fabricated by forming a substrate from opposing ferrite blocks which have a ceramic member bonded between them. This structure is then diced to form a plurality of columns, wherein each column has a ferrite/ceramic combination. Each column represents a single channel in the... Agent: Dorsey & Whitney LLP Intellectual Property Department

20080024914 - Collocated metal frame pzt micro-actuator with a lower stiffness suspension design: A framing assembly with lower stiffness design and a method of manufacturing that framing assembly are disclosed. In one embodiment, a framing assembly pattern is cut from a piece of a thin planar material, such as metal. The pattern is then bent to form a framing assembly with a base... Agent: Kenyon & Kenyon LLP

20080024915 - Magnetic head and magnetic disk drive: Embodiments of the present invention provide a magnetic head and a magnetic disk drive using the same, which is capable of increasing efficiency in changing the flying height of an element portion by heat generation of a heater in the magnetic head using the heater as well as capable of... Agent: Townsend And Townsend And Crew LLP

20080024916 - Tape cartridge and tape loading system using same: There are provided a tape cartridge which can reliably remove contamination adhering to the surface of a head and a tape loading system using the same. A tape such as recording tapes and leader tapes is unreeled from a case body housing the tape and is taken up to the... Agent: Birch Stewart Kolasch & Birch

20080024917 - Holographic magnetic stripe demetalization security: A secured holographic magnetic tape comprising a magnetic layer for encoding data, an embossable layer for embossing a hologram, and a metal layer. The metal layer comprises a plurality of sections forming a pattern based on a predetermined magnetic signature of the tape. A method of making the secured holographic... Agent: C. Andrew Im Fulbright & Jaworski L.L.P.

20080024918 - Perpendicular magnetic recording medium and magnetic storage apparatus: A perpendicular magnetic recording medium is provided with a substrate, a soft magnetic back layer provided on a surface of the substrate, an orientation controlling underlayer provided on the soft magnetic back layer, and a recording layer provided above the orientation controlling underlayer and having axes of easy magnetization approximately... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20080024919 - Freezing point reduction in fdb by enhancing lubricants with additives: An embodiment of the invention relates to a magnetic recording storage device having a lubricant and an acrylate-containing compound as a freezing and or pour point depressant additive for the lubricant. Yet another embodiment relates to a method of depressing the freezing point of lubricant of a spindle motor having... Agent: Seagate Technology C/o Darby & Darby P.C.

20080024921 - Air bearing with low crown sensitivity through side channels: An air bearing surface of a slider, which achieves low crown sensitivity is described. In one embodiment, the air bearing surface comprises a center channel and a plurality of side channels, wherein at least one side channel of the plurality of side channels is open to the center channel. The... Agent: Wagner, Murabito & Hao LLP

20080024922 - Auxiliary slider-debonding device and slider debonding method: An auxiliary slider-debonding device for debonding a plurality of sliders from a transfer tool and receiving them therein includes: a locating device to locate the transfer tool and a debonding tray to receive the sliders. The debonding tray includes at least an array of first pockets arranged in a direction... Agent: Nixon & Vanderhye, PC

20080024920 - Head gimbal assembly with micro-actuator and manufacturing method thereof, and disk drive unit with the same: A HGA of the invention includes a slider, a micro-actuator with PZT elements, and a suspension for supporting the slider and the micro-actuator. The slider has a leading edge, a trailing edge opposite to the leading edge, an air-bearing surface connecting the leading edge and the trailing edge, and a... Agent: Nixon & Vanderhye, PC

20080024923 - Lubricant film forming method, slide body with lubricant film, magnetic recording medium, magnetic head slider, and hard disk drive: A lubricant film forming method has a step of irradiating a lubricant with an OH group laid on a surface of a base material, with infrared laser light that excites vibration of an OH bond of the OH group. In this method, the irradiation with the infrared laser light excites... Agent: Oliff & Berridge, PLC

20080024924 - Air bearing with both low altitude and speed sensitivities: An air bearing surface of a slider is described. In one embodiment, the air bearing surface comprises a center channel. The air bearing surface further comprises a plurality of side channels, wherein at least one side channel of the plurality of side channels is open to the center channel, and... Agent: Wagner, Murabito & Hao LLP

20080024925 - Magnetic disk device: The present invention provides a magnetic disk device which uses a plurality of screws of different weights for fastening a disk clamp, and which combines the screws of different weights in such a manner to eliminate weight imbalance. Accordingly, the device does not use extra components such as a weight... Agent: Kratz, Quintos & Hanson, LLP

20080024927 - Head gimbal assembly and hard disk drive having the same: A head gimbal assembly includes a load beam to support a slider where a read/write head is mounted, a base plate arranged close to the load beam, and a step connection portion to connect the load beam and the base plate to be stepped from each other at a side... Agent: Stanzione & Kim, LLP

20080024926 - Self-fixturing pivoting actuator: A rotary actuator arm assembly for positioning a transducer over a data track of at least one rotating magnetic disk. The actuator includes self contained spacers with semi-kinematic mounting features to accurately locate and secure a set of self-aligning components, thereby eliminating azimuth alignment problems created by conventional assembly procedures.... Agent: George O. Saile

20080024928 - Hga having separate dimple element, disk drive unit with the same, and manufacturing method thereof: A HGA of the invention includes a slider, a load beam having a locating hole formed therein; a flexure to support the slider and connect with the load beam; a separate dimple element having a dimple to extend through the locating hole and support the flexure at a position corresponding... Agent: Nixon & Vanderhye, PC

20080024929 - Method and apparatus preventing slider separation from disk surface contact start-stop hard disk drive: Parking sliders on disk surfaces by a load tab contacting a tab ramp to engage sliders into secure contact. Head gimbal assemblies including these load tabs; the disk clamp, disk spacer, spindle motors, each including at least one tab ramp; the hard disk drive, their manufacturing processes and the products... Agent: Gregory Smith & Associates

20080024930 - Magnetic disk unit: Embodiments of the present invention provide a magnetic disk unit capable of attaining miniaturization, lower cost, lighter weight, lower profile, and higher density. According to one embodiment, only a carriage and a spindle motor among respective constituent components of a hard disk drive (HDD) are securely attached to a support... Agent: Townsend And Townsend And Crew LLP

20080024931 - Discrete mounting arm for hard disk drive and method for making the same: A mounting arm for a hard disk drive having a generally planar region, the mounting arm having at least one striation formed on the generally planar region to provide compressive residual stress with desirable shape characteristics in the mounting arm.... Agent: Snell & Wilmer LLP (oc)

20080024932 - Head actuator assembly for a tape drive: A head actuator assembly includes a coarse positioner base assembly that is mounted on a guide shaft and an anti-rotation shaft and provides increased structural rigidity due to a four-point support and spring loading of the coarse positioner base against the anti-rotation shaft. A two-part head-carriage and voice coil holder... Agent: Law Office Of Mark J. Spolyar

20080024933 - Method and system of integrating micro-actuator to suspension for hga of disk drive device: A head gimbal assembly includes a suspension including a suspension flexure. The suspension flexure includes a step plate mechanically formed in the suspension flexure. A micro-actuator is mounted to the step plate of the suspension flexure. The step plate is constructed and arranged to support the micro-actuator such that a... Agent: Nixon & Vanderhye, PC

20080024934 - Magnetoresistive element incorporating conductive film disposed on peripheral surface of layered structure including spacer layer, free layer and pinned layer, the conductive film allowing conduction between the free layer and the pinned layer: An MR element incorporates a layered structure. The layered structure includes: a spacer layer having a first surface and a second surface that face toward opposite directions; a free layer disposed adjacent to the first surface of the spacer layer and having a direction of magnetization that changes in response... Agent: Oliff & Berridge, PLC

20080024935 - Magnetic storage device: A magnetic storage device is provided which has significantly reduced power consumption. The magnetic storage device includes: a yoke which is arranged so as to cover part of a line extending in an arbitrary direction; and a magneto-resistive element which is arranged near the line and is capable of writing... Agent: Diane Dunn Mckay, Esq. Mathews, Shepherd, Mckay & Bruneau, P.A.

20080024936 - Magnetic sensor and memory device: The present invention provides a tunnel-effect type magnetoresistive head which can prevent degradation of a tunnel-effect type magnetoresistive effect element caused by contact with a magnetic recording medium without degrading a shielding effect. In this tunnel-effect type magnetoresistive head, for the above purpose, an exposed surface area of a shield... Agent: Greer, Burns & Crain, Ltd.

20080024937 - Cpp read sensor having constrained current paths made of lithographically-defined conductive vias with surrounding oxidized metal sublayers: Current-perpendicular-to-plane (CPP) read sensors having constrained current paths made of lithographically-defined conductive vias with surrounding oxidized metal sublayers, and methods of making the same, are disclosed. In one illustrative example, at least part of a sensor stack structure which includes an electrically conductive spacer layer is formed. A metal (e.g.... Agent: John J. Oskorep, Esq. One Magnificent Mile Center

20080024938 - Methods and apparatus for defining the track width of a magnetic head having a flat sensor profile: A method of making a magnetic head according to one embodiment comprises forming a shield layer having first and second recesses in first and second end regions which surround a central region; depositing first and second lead layers in the first and the second recesses; and forming a read sensor... Agent: Zilka-kotab, PC

  
01/24/2008 > patent applications in patent subcategories. USPTO class listing

20080019031 - Method and apparatus adjusting reference clock frequency and disk drive using same: Provided is an apparatus and method of adjusting reference clock frequency in a disk drive. The reference clock frequency adjustment method includes; measuring each servo sector detection time interval, generating an error signal by subtracting initially set reference time interval information between servo sectors from the measured servo sector detection... Agent: Volentine & Whitt PLLC

20080019034 - Magnetic head evaluation apparatus and method for manufacturing magnetic disk drive using the same: Embodiments in accordance with the present invention provide a low-priced magnetic head evaluation apparatus capable of evaluating characteristics at high speed. According to one embodiment, a magnetic head evaluation apparatus includes a spindle motor, a VCM actuator as a head moving mechanism, and a ramp mechanism. A spindle motor used... Agent: Townsend And Townsend And Crew LLP

20080019033 - Method of searching to find a servo pattern corresponding to a servo pattern copy process: A method of searching to find a servo pattern corresponding to a servo pattern copy includes unparking a magnetic head and moving the magnetic head onto an intermediate area of a rotating disk, moving the magnetic head to a servo pattern copy start area by applying an initial search current... Agent: Stanzione & Kim, LLP

20080019035 - Tape cartridge recording/playback apparatus: A tape cartridge recording/playback apparatus that receives a tape cartridge into an interior portion of the apparatus is disclosed. The apparatus includes a tape cartridge misleading prevention key that prevents misloading of the tape cartridge. The tape cartridge misleading key is rotatably mounted in the interior portion of the apparatus... Agent: Ladas & Parry LLP

20080019036 - Positioning device adapted for positioning a detachable module in a housing: A positioning device includes two guiding members fixed spacedly in a housing. Each guiding member has a hook-shaped guiding slot having an elongate first slot portion, and a curved second slot portion defined by front and rear stop walls. A pivot member is connected pivotally to a detachable module. Two... Agent: Ostrolenk Faber Gerb & Soffen

20080019037 - Disk spacer and hard disk drive having the same: A disk spacer located on a rotator of a spindle motor to allow an additional disk to be mounted on the spindle motor, the disk spacer including a screw hole formed in a central part of the disk spacer to allow a clamping screw to pass through, a first disk... Agent: Stanzione & Kim, LLP

20080019038 - Two-material base for a data storage system: An enclosure system includes a motor assembly that has a motor magnet and at least one motor coil. The enclosure system also includes a base coupled to the motor assembly. The base includes a first portion that includes a non-magnetic material and a second portion that includes a magnetic material.... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20080019039 - Self-centering clamp: An apparatus and associated method for clamping an article to a rotatable motor hub. A clamp has a web portion and a plurality of protuberant members extending away from the web portion. Distal ends of the protuberant members are radially disposable within a concentric ring to a clamp axis of... Agent: Fellers, Snider, Blankenship, Bailey & Tippens

20080019030 - Magnetic disk read/write device and method of evaluation of thermal relaxation degradation in magnetic disk read/write device: A method of evaluating thermal relaxation in magnetic recording, and a pass-fail decision method for a magnetic disk read/write device which satisfies lifetime assurance conditions, are provided. The pass-fail decision method for a magnetic disk read/write device is a method of thermal relaxation degradation in a magnetic disk read/write device... Agent: Greer, Burns & Crain

20080019032 - Disk drive and disk drive control method: Embodiments in accordance with the present invention improve the head characteristic and avoid collisions between a head element section and a recording disk. A hard disk drive according to an embodiment of the present invention performs TFC (Thermal Fly height Control) to adjust the clearance between the head element section... Agent: Townsend And Townsend And Crew LLP

20080019041 - Magnetic head: A magnetic head is composed of a write head which magnetically records information by emitting magnetic flux, which is generated by a write coil, from a magnetic pole unit to a recording medium; and a read head having a reading element which converts record magnetic flux, which is emitted from... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20080019042 - Perpendicular magnetic recording head and perpendicular magnetic recording/reproducing head: A perpendicular magnetic recording head includes a first magnetic layer having a main magnetic pole exposed at a medium-facing surface that faces a recording medium; a second magnetic layer that faces the first magnetic layer with a nonmagnetic layer interposed therebetween; and a coil layer for applying a recording magnetic... Agent: Hunton & Williams LLP Intellectual Property Department

20080019043 - Perpendicular magnetic recording head and perpendicular magnetic recording/reproducing head: A perpendicular magnetic recording head according to the present invention is composed of a first magnetic layer having a main magnetic pole exposed at a facing surface opposite a recording medium, a second magnetic layer adjacent to the first magnetic layer with an intermediary non-magnetic layer disposed therebetween, and a... Agent: Hunton & Williams LLP Intellectual Property Department

20080019040 - Perpendicular spin-torque-driven magnetic oscillator: A perpendicular spin-torque-driven magnetic oscillator is disclosed. According to various embodiments, the magnetic oscillator comprises a magnetic reference stack, a magnetic oscillating stack, and an interlayer between the reference stack and the oscillating stack such that the reference stack and the oscillating stack are exchange coupled. The reference stack may... Agent: Kirkpatrick & Lockhart Preston Gates Ellis LLP

20080019044 - Multilayered ferromagnetic laminate having alternating cobalt alloy and iron-nitrogen alloy films for use with magnetic heads: A multilayered ferromagnetic laminate includes a first magnetic film having a cobalt alloy and a second magnetic film having an iron-nitrogen alloy. The films are deposited upon one another and laminated to provide a multilayered film structure having an alternating plurality of the first and second magnetic films. The cobalt... Agent: Brooks Kushman P.C. / Sun / Stk

20080019045 - Perpendicular magnetic head: m

20080019046 - Disk cartridge: A disk cartridge according to the present invention includes a case body 10, a shutter 11 and an elastic member 7. The case body 10 has a head window 12, which reaches a side surface, and a shutter opening groove 24 with a holding recess 26 at the bottom. The... Agent: Mark D. Saralino (mei) Renner, Otto, Boisselle & Sklar, LLP

20080019047 - Method of manufacturing magnetic disk: A method of manufacturing a magnetic disk is provided. The method of manufacturing a magnetic disk includes the step of disposing a plurality of magnetic recording tracks concentrically, each of the magnetic recording track including a data information recording area and a control information recording area, and the step of... Agent: Bell, Boyd & Lloyd, LLP

20080019048 - Hard disk drive: A hard disk drive includes a base, a cover coupled to an upper portion of the base to accommodate a plurality of parts between the cover and the base, a spindle motor including a FDB (fluid dynamic bearing) having an FDB fixing portion fixed to the base and an FDB... Agent: Stanzione & Kim, LLP

20080019049 - Tape head read/write module: A tape head read/write module that has a composite air bearing surface, and a method and apparatus for embedding a chip in a substrate to form a composite air bearing surface. An example of the module includes a substrate that has an air bearing surface, a front, a back, and... Agent: Timothy N. Ellis, Patent Attorney

20080019050 - Head slider and method of manufacturing same: A head slider having an air inlet end and an air outlet end includes a rail having a flat air bearing surface for generating floating force when the disk rotates, the rail being disposed on a disk-facing surface; and an electromagnetic transducer disposed near the air outlet end where the... Agent: Greer, Burns & Crain

20080019051 - Rotational disc type storage device: Embodiments of the present invention help to stabilize a tilt amount of a head gimbal assembly with respect to a magnetic disc. According to one embodiment of the present invention, in a head stack assembly in which a head gimbal assembly, a carriage, and a head gimbal assembly are stacked... Agent: Townsend And Townsend And Crew LLP

20080019052 - Information storage: A disc drive includes a motor that drives a disc, a slider that accesses the disc, a carriage that moves the slider, a housing that houses the disc, motor, slider, and carriage, and includes a rotating part that has an engagement part with the carriage at one end, and a... Agent: Greer, Burns & Crain

20080019053 - Temperature-adaptive open-loop control of active latch: An apparatus and method for latching an actuator arm assembly can position a read/write head relative to a data storage disk in a disk drive. A latch arm is configured to be moved between a closed position that inhibits movement of an actuator arm assembly in a landing zone and... Agent: Foley & Lardner

20080019054 - Head stack assembly having a head gimbal and hard disk drive including the same: A head stack assembly of a hard disk drive includes a swing arm having a prong at its leading end, an actuator for rotating the swing arm, and a head gimbal having a head slider including a read/write head for reading/writing data from/onto a disk. The head gimbal supported is... Agent: Volentine & Whitt PLLC

20080019055 - Multiple extraordinary magnetoresistive (emr) sensor utilizing both current leads: An extraordinary magnetoresistive device EMR sensor that is capable of reading two separate tracks of data simultaneously. The EMR sensor has a semiconductor structure with an electrically conductive shunt structure at one side. The other side of the semiconductor structure is connected with a pair of current leads. Each of... Agent: Zilka-kotab, PC

20080019056 - Thin-film magnetic head, magnetic head assembly, magnetic disk drive apparatus and manufacturing method of thin-film magnetic head: A thin-film magnetic head provided with at least one MR read head element includes a lower shield layer, an upper shield layer, and an MR layer formed between the lower shield layer and the upper shield layer. A profile of the upper shield layer, appeared at an ABS, has obtuse... Agent: Oliff & Berridge, PLC

20080019057 - Elimination of electric-pop noise in mr/gmr device: A magnetic reading head comprising: a bottom shield; a top shield; an AMR device with MR and SAL separated by a thin insulating layer; a first insulting gap layer between said bottom shield and said AMR; a second insulating gap layer between said AMR and said top shield; a conductive... Agent: Winstead PC

20080019058 - Magneto-resistive effect element and magnetic memory: It is possible to obtain excellent heat stability even though the element is miniaturized and keep stable magnetic domains even though switching is repeated any number of times. A magneto-resistive effect element includes: a magnetization-pinned layer including a magnetic film having a spin moment oriented in a direction perpendicular to... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080019059 - Pinned layer in magnetoresistive sensor: A method for manufacturing a magnetic read sensor and a magnetic read sensor are provided. In one embodiment of the invention, the method includes providing a seed layer disposed over a substrate of the magnetic read sensor, providing a free layer disposed over a seed layer and providing a spacer... Agent: Patterson & Sheridan, L.L.P.

20080019060 - Magneto-resistive effect device, thin-film magnetic head, head gimbal assembly, and hard disk system: The invention provides a magneto-resistive effect device having a CPP (current perpendicular to plane) structure comprising a nonmagnetic spacer layer, and a fixed magnetized layer and a free layer stacked one upon another with said nonmagnetic spacer layer sandwiched between them, with a sense current applied in a stacking direction,... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

  
01/17/2008 > patent applications in patent subcategories. USPTO class listing

20080013204 - Seek control apparatus, seek control method and storage apparatus: A seek control apparatus, a seek control method and a storage apparatus can prevent degradation of performance of a read/write head due to residual oscillations in a seek operation. The seek control apparatus for performing a seek control of a head comprises an MCU 11 that acquires control information corresponding... Agent: Patrick G. Burns Greer, Burns & Crain, Ltd.

20080013205 - Head stack assembly for hard disk drive and hard disk drive including head stack assembly: A head stack assembly (HSA) for a hard disk drive (HDD) comprises a swing arm rotatably coupled to a base member of the HDD, a connection plate coupled to an edge part of the swing arm, a head suspension component attached to the connection plate, and a head slider comprising... Agent: Volentine & Whitt PLLC

20080013206 - Reducing the obstruction of air flow through a bypass channel associated with a disk drive: Embodiments of the present invention pertain to reducing the obstruction of air flow through a bypass channel associated with a disk drive. According to one embodiment, disk drive filtering system includes a selective filtering region, a pass-by filter, and a filter free region. The selective filtering region is disposed within... Agent: Wagner, Murabito & Hao LLP

20080013207 - Reducing the obstruction of air flow through a bypass channel associated with a disk drive using an electrostatic pass-by filter: Embodiments of the present invention pertain to reducing the obstruction of air flow through a bypass channel associated with a disk drive. According to one embodiment, disk drive filtering system includes a selective filtering region, an electrostatic pass-by filter, and a filter free region. The selective filtering region is disposed... Agent: Wagner Blecher LLP

20080013198 - Detection of fly height change in a disk drive: A method of detecting a change in fly-height comprising measuring a first baseline position error signal (PES) at a first diameter on a disk, measuring a second baseline PES at a second diameter, measuring a first transient PES at the first diameter subsequently to the first baseline PES, measuring a... Agent: Procopio, Cory, Hargreaves & Savitch LLP

20080013199 - Magnetic memory device and method for magnetic reading and writing: Disclosed herein are a magnetic memory device and method for storing and retrieving data. The magnetic memory device includes a read disk and a storage disk. The read disk comprises of an array of read heads wherein the individual read head corresponds to a storage element on the storage disk.... Agent: James E. Eakin

20080013200 - Recording medium and apparatus for protecting copyrighted digital data: Copying, dubbing or reproducing copyrighted digital data can be inhibited or restricted to properly protect a copyright. AV data recorded on a pre-recorded tape is output from a reproducing unit of a first digital VCR with protective information indicating whether the copy of the AV data is inhibited or not.... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20080013201 - Head-disc contact detection using a microactuator: A method for detecting head-disc contact in a disc drive is disclosed. The method comprises monitoring an output signal from a head positioning microactuator on a read/write head in the disc drive and evaluating the output signal to determine if the read/write head contacts a disc of the disc drive.... Agent: Shumaker & Sieffert, P. A.

20080013203 - Mechanical reference detection using a v-shaped pattern: Various embodiments of the present invention are generally directed to detecting a fixed mechanical reference adjacent a storage medium using a v-shaped pattern written to the medium.... Agent: Fellers, Snider, Blankenship, Bailey & Tippens

20080013202 - Self-servo writing using staged patterning: Preferred embodiments of the present invention are generally directed to the writing of first servo data to a medium, detecting a velocity integrated position of said first servo data, and writing second servo data in relation to the detected position of the first servo data.... Agent: Fellers, Snider, Blandenship, Bailey & Tippens

20080013208 - Method of controller and data carrier drive apparatus for controlling loading means supporting a data carrier: A data carrier drive apparatus (1) comprises data carrier loading means (3) for supporting a data carrier, which data carrier loading means (3) is movable between an open and a closed end position along a traveling path by means of a loading means motor (4); and detection means (23, 25)... Agent: Philips Intellectual Property & Standards

20080013209 - Magnetic head for perpendicular magnetic recording and method of manufacturing same: A magnetic head comprises a pole layer, a shield layer, a gap layer disposed between the pole layer and the shield layer, and a coil. The shield layer incorporates a first layer, a second layer, a third layer and a fourth layer that are disposed on the gap layer one... Agent: Oliff & Berridge, PLC

20080013210 - Thin-film magnetic head having magnetic layer with non-magnetic layer therewithin: Provided is a thin-film magnetic having improved write characteristics in the high-frequency band. The head comprises an electromagnetic coil element comprising upper and lower magnetic layers, a write gap layer and a write coil layer, and in the electromagnetic coil element, at least one non-magnetic layer is provided within the... Agent: Oliff & Berridge, PLC

20080013211 - Bottom pole structure with recessed section: To generate a high data transfer rate from a magnetic write head, a faster flux rise time is needed. This often brings about severe excess saturation of the head and, as a result, adjacent track erasures often occur. This problem has been overcome by indenting P1 away from the ABS... Agent: Saile Ackerman LLC

20080013212 - Magnetic wire and recording medium: A magnetic wire includes a magnetic metal wire material having a surface coated with a layer of an insulating material. The magnetic wire has a magnetic coercive force of 30 A/m or less and has a Barkhausen effect.... Agent: Taiyo Corporation

20080013213 - Head, head suspension assembly, and disk device provided with the same: According to one embodiment, a slider of a head has a negative-pressure cavity which is formed in a facing surface, a leading step portion, a trailing step portion, a pair of side step portions which protrude from the facing surface and extend in the longitudinal direction, and a pair of... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20080013214 - Braced suspension: A suspension is disclosed that includes a pre-load section and a load section. The pre-load section is configured to be connected to a base. The load section is connected to the pre-load section and comprises a load beam portion, a flex circuit portion, and a brace. The brace extends laterally... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20080013216 - Head stack assembly and hard disk drive having the same: A head stack assembly (HAS) of a hard disk drive (HDD) includes a swing arm, a connection plate integral with a terminal end of the swing arm, a head slider including a magnetic head for reading/writing data from/onto a disk, and a suspension that is attached to the connection plate,... Agent: Volentine & Whitt PLLC

20080013215 - Head suspension assembly and storage device: A hinge plate is bonded to a base plate and a load beam in a head suspension assembly. The load beam includes a wide section and a narrow section extending forward from the front end of the wide section. The head suspension assembly allows the load beam to have a... Agent: Patrick G. Burns Greer, Burns & Crain, Ltd.

20080013217 - Hard disk drive: A hard disk drive includes a voice coil motor yoke, a base to support the voice coil motor yoke, and formed of a material different from that of the voice coil motor yoke, and a thermal deformation prevention unit which is formed of a material that is substantially the same... Agent: Stanzione & Kim, LLP

20080013218 - Magnetoresistive effect element, magnetic head, magnetic reproducing apparatus, and manufacturing method thereof: A magnetoresistive effect element, includes: a magnetoresistive effect film including: a magnetization fixed layer having a first ferromagnetic film of which magnetization direction is practically fixed in one direction; a magnetization free layer having a second ferromagnetic film of which magnetization direction changes with corresponding to an external magnetic field;... Agent: Nixon & Vanderhye, PC

20080013219 - Methods of manufacturing magnetic heads with reference and monitoring devices: According to one aspect, an exemplary method for manufacturing a magnetic head includes forming a plurality of magnetoresistive devices, a reference device, and a monitoring device, where the reference device includes a desired stripe height less than the magnetoresistive devices and monitoring device. Material is removed from the air/tape bearing... Agent: Morrison & Foerster LLP

20080013220 - Magnetoresistive device, read head and storage having the same: A method for manufacturing a magnetoresistive device that includes a spin-valve film, and a terminal layer that applies a sense current in a direction of a lamination surface in the spin-valve film, the spin-valve film including a pair of uncoupled ferromagnetic layers, and a non-magnetic metal layer that separates the... Agent: Greer, Burns & Crain

20080013221 - Thin-film magnetic head, magnetic head assembly, magnetic disk drive apparatus and method for manufacturing thin-film magnetic head: The present invention relates to a thin-film magnetic head which prevents leakage of magnetic fluxes from an edge area of a lower and/or an upper shield layers of a magnetoresistive effect read head element. The thin-film magnetic head have a magnetoresistive effect read head element that includes a lower shield... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080013222 - Magnetoresistance effect element, its manufacturing method, magnetic reproducing element and magnetic memory: A method of manufacturing a magnetoresistance effect element includes forming an insulating layer on a first ferromagnetic layer, forming an aperture reaching the first ferromagnetic layer by thrusting a needle from the top surface of the insulating layer, and depositing a ferromagnetic material to form a second ferromagnetic layer overlying... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20080013223 - Gmr device of the cpp structure, thin-film magnetic head, head gimbal assembly, and hard disk system: In the GMR device of the CPP structure using the synthetic pinned layer as the fixed magnetization layer (pinned layer), the width W1 of the inner pin layer is set at 50 nm or less; the fixed magnetization layer is configured in such a way as to have a given... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

  
01/10/2008 > patent applications in patent subcategories. USPTO class listing

20080007853 - Method for duplicating data: A method of the present invention duplicates data of a source medium to target media. The source medium is stored ground data and effective data, wherein the ground data are repeated to fill up the source medium and the effective data overwrite some of the ground data. Next, reading data... Agent: Birch Stewart Kolasch & Birch

20080007854 - Guided target search for hard disk drive applications: A technique to perform a guided partial response target search for characterizing a read channel of a disk drive. A target adaptation scheme pre-selects a plurality of targets from a pool of potential targets based on certain criteria and the selected targets are sorted in linear gradient orders. When target... Agent: Garlick Harrison & Markison

20080007855 - Phase offset correction for timing recovery with use of ecc in a read channel for a disk drive: A technique to sample a signal from a disk by using frequency and phase offset adjustment in a phase locked loop (PLL) timing recovery loop to sample read data from the disk, prior to a disk clocked clocking acquires a lock. Subsequently, sampling a signal from a disk by using... Agent: Garlick Harrison & Markison

20080007856 - Magnetic tape storage, method for writing data to magnetic tape, and medium for writing data program: In a magnetic tape storage including a nonvolatile buffer memory, the buffer memory memorizing sets of data sent from a host computer, a set of data including a pair of one file and one tape mark, the tape mark showing the end of the file, sets of data are continuously... Agent: Staas & Halsey LLP

20080007861 - Disk drive adaptive resonance compensation method and apparatus: A method used in a disk drive system for compensating a frequency component affecting servo control performance. The method includes detecting a frequency component affecting a servo control output in a disk drive/head during a manufacturing process and storing the detected frequency component in a nonvolatile memory device. A frequency... Agent: Volentine & Whitt PLLC

20080007863 - Method and apparatus for single written-in repeatable run-out correction function used in multi-stage actuation control of hard disk drive: RRO corrector function is formulated to partition the contribution of micro-actuator control from the other voice coil assembly contributions. Single stage actuation is supported by zeroing the micro-actuator control queue, otherwise multi-stage actuation is supported. The multi-stage actuation may include dual stage actuation and in some embodiments triple stage actuation.... Agent: Gregory Smith & Associates

20080007864 - Motor assembly for a small sized data storage system: A base of a data storage system includes a motor assembly. The motor assembly s includes a rotor that extends through an aperture in the base. The aperture extends from an inner surface to an outer surface of the base. The motor assembly also includes a motor stator mounted on... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20080007857 - Indicator for confirming data erasure, box for use in processing recording media, and method for erasing data: There is provided with an indicator 1 for confirming data erasure to be placed in a magnetic field with a recording medium in placing the recording medium in the magnetic field so as to erase data recorded in the medium, including a displaying part 2 whose displaying status changes upon... Agent: Wood, Phillips, Katz, Clark & Mortimer

20080007858 - Optical storage system using an antenna for recording information data to a phase-change type medium: An assembly and method for recording and/or reading high-density data includes a phase change media, an antenna placed adjacent the phase change media, and a source of electromagnetic radiation.... Agent: Mcginn Intellectual Property Law Group, PLLC

20080007859 - Recorded data eraser for magnetic recording medium, method for erasing recorded data in magnetic recording medium, and program for controlling said eraser: There is provided a device and a method adapted to confirm whether data is completely erased when erasing data in a magnetic recording medium. A recorded data eraser for erasing data recorded in a magnetic recording medium by means of a magnetic field includes an input voltage monitor for monitoring... Agent: Wood, Phillips, Katz, Clark & Mortimer

20080007860 - Disk array control apparatus and method: A disk array control apparatus is capable of individually controlling disk states of a plurality of hard disk drives disposed in a disk array. A rotation control time determination unit calculates a control time for controlling the disk state of each of the plurality of hard disk drives based on... Agent: Young & Thompson

20080007862 - Disk drive apparatus and head assembly used for the same: Embodiments of the present invention restrain the head position accuracy from degrading due to torsional vibration of a head supporting unit. According to an embodiment of the invention, an actuator has a twisted carriage arm. A suspension is tilted in accordance with the twist of the carriage arm. When the... Agent: Townsend And Townsend And Crew LLP

20080007865 - Apparatus for supporting a disk drive and disk drive test apparatus: Apparatus for supporting a disk drive with a rotating disk about a disk axis and an arm which pivots over the disk about an arm axis. The disk axis and the arm axis are perpendicular to the plane of the disk. The apparatus includes a disk drive carrier having a... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20080007866 - Magnetic disk drive: Embodiments of the present invention provide a magnetic disk drive with an enclosure that prevents the low-density gas from leaking out owing to reduction of shrinkage cavities near tapped holes. According to one embodiment of the present invention, an aluminum alloy is forced into the region of the base in... Agent: Townsend And Townsend And Crew LLP

20080007867 - Tape drive apparatus: A tape drive apparatus has a data transfer apparatus for transferring data between a loaded tape medium and the tape drive apparatus. A data processing apparatus is coupled to the data transfer apparatus for formatting the loaded tape medium. The formatting of the tape medium is performed using an identifier... Agent: Hewlett Packard Company

20080007869 - Disk drive and magnetic storage medium: A magnetic storage medium includes a substrate. A soft magnetic material layer is arranged adjacent to the substrate. A magnetic material layer defines concentric tracks that are arranged adjacent to the soft magnetic material layer. Shield portions are arranged radially offset from and between adjacent ones of the tracks.... Agent: Harness, Dickey & Pierce P.L.C

20080007868 - Magnetic recording medium and magnetic storage apparatus: Embodiments of the present invention provide a perpendicular magnetic recording medium capable of suppressing a magnetic field intensity applied to adjacent tracks on a patterned perpendicular recording medium. According to one embodiment of the present invention, unevenly formed soft under layers are stacked on a flat nonmagnetic substrate, thereby the... Agent: Townsend And Townsend And Crew LLP

20080007870 - Torsion spring, elastic device and sliding apparatus and portable appliance utilizing the device: Disclosed is an elastic device which is suitable for a sliding opening/closing apparatus of a portable appliance. The elastic device includes a first torsion spring including a first spiral part which is wound as a spiral shape without a vertical overlapping portion and a first extension arm extending from an... Agent: Roberts, Mlotkowski & Hobbes

20080007871 - Head slider, glide height checking apparatus, and glide height checking method: The head slider has a plurality of heaters each heating a corresponding region of the ABS, and a sensor detecting collision of the ABS with a projection on a surface of the magnetic disk. Currents supplied to the respective heaters are controlled and produce heats independently of one another. The... Agent: Oliff & Berridge, PLC

20080007872 - Storage device with slider with sacrificial lapping extension: A process for fabricating sliders with one or more sacrificial structures (extensions) that facilitate lapping to create the air-bearing surface (ABS) is described. Prior to separating individual sliders from a wafer, a mask outlines a sacrificial extension around portions of the magnetic transducer elements that are nearest the predetermined plane... Agent: Marlin Knight Hoyt & Knight

20080007873 - Disc drive apparatus: A disc drive apparatus has a base, a disc, and a carriage. The base has a first vibration mode and a second vibration mode as reference vibration modes with respect to frequency response characteristics observed when the disc drive apparatus is shaken. The second vibration mode has a low-frequency second... Agent: Frishauf, Holtz, Goodman & Chick, PC

20080007874 - Ramp structure with inclined contact surface: An apparatus for unloading a moveable member comprises a ramp structure with an inclined surface. A lift tab of the moveable member advances along the ramp structure to the inclined surface while pivoting about a pivot point to undergo an increase in elevation above a base surface. The inclined surface... Agent: Fellers, Snider, Blankenship, Bailey & Tippens

20080007875 - Read head for magnetic storage system: A read head for a rotating magnetic storage system including concentric tracks is disclosed. The read head comprises a magnetoresistive (MR) sensor that reads information from a read track of the magnetic storage medium. First and second shields have a length greater than two tracks in a track width direction... Agent: Harness, Dickey & Pierce P.L.C

20080007876 - Magnetic storage device which includes a three terminal magnetic sensor having a collector region electrically isolated from a slider body: In one illustrative example, a magnetic storage device includes a three terminal magnetic sensor having a collector region made of a semiconductor material, a base region, and an emitter region. An insulator layer is formed between the collector region and a slider body which carries the three terminal magnetic sensor.... Agent: John J. Oskorep, Esq. One Magnificent Mile Center

20080007877 - Magneto-resistance effect element, magnetic head, magnetic recording/reproducing device and magnetic memory: A CPP type magneto-resistance effect element includes a magneto-resistance effect film with a fixed magnetization layer, a free magnetization layer and a non-magnetic intermediate layer; and a perpendicular biasing mechanism configured to apply a perpendicular biasing magnetic field to the free magnetization layer under the condition that the biasing magnetic... Agent: Nixon & Vanderhye, PC

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