Dynamic magnetic information storage or retrieval inventions 09/07

20070223124 - Storage apparatus, control method and control apparatus: The heads have write head elements which record data onto a disk medium capable of coping with perpendicular magnetic recording and read head elements which reproduce data. The monitored band detecting unit sets a frequency band in a range from the signal band of the write data signal to the... Agent: Greer, Burns & Crain

20070223125 - Servo writer, signal output control method and manufacturing method of magnetic tape using the signal output control method: A recording current to be supplied to a magnetic head is regulated by a signal output control unit. A peak value (either of positive-going peak value and a negative-going peak value) is detected in each pulse of a digital signal resulting from analog-to-digital conversion of a servo signal recorded on... Agent: Sughrue Mion, PLLC

20070223132 - Information recording apparatus: According to embodiments of the present invention, tracks can be formed on a magnetic recording medium on a zonal area at intervals of either a first track pitch or a second track pitch, both of which differ from each other. For an reference track defined in each zonal area, regardless... Agent: Townsend And Townsend And Crew LLP

20070223131 - Method and apparatus for writing servo information in a disk drive: According to one embodiment, a servo information writing method for use in a disk drive, for recording the servo information, forming a continuous servo track such as a spiral track. In this servo information writing method, the head is stopped when a write error is detected while the servo information... Agent: Pillsbury Winthrop Shaw Pittman, LLP

20070223135 - Control apparatus, storage apparatus, and head control method: A control apparatus according to the present invention uses a correction value for head position written in a recording medium to control head position. The apparatus comprises: an allowable range acquisition section that acquires a correction value allowable range which is a previously set allowable range of a correction value;... Agent: Greer, Burns & Crain

20070223136 - Micro actuator gain calibration based on a sinusoidal input signal: Control of micro actuator movement is calibrated in response to a sinusoidal input signal. A response of the micro actuator to the sinusoidal input signal is measured, for example, based on measurement of a change in radial location of a transducer connected to the micro actuator responsive to the sinusoidal... Agent: Myers Bigel Sibley & Sajovec

20070223122 - Data recovery method: A data recovery method for detecting information recorded on a recording surface of an information recording medium, comprising the step of: moving a reproduction head on the recording surface of the information recording medium, wherein, in the moving step, the reproduction head is moved on the recording surface of the... Agent: Kratz, Quintos & Hanson, LLP

20070223123 - 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

20070223126 - Robust data storage techniques for two-sided data storage tape: In an embodiment, a data storage tape includes a first side including recorded data and a second side including recorded error correcting code data for the recorded data on the first side. In another embodiment, a data storage tape comprises a first side including recorded data and a second side... Agent: Attention: Eric D. Levinson Imation Corp.

20070223127 - Eccentricity correction method, signal processing circuit, magnetic storage apparatus and perpendicular magnetic recording medium: A magnetic storage apparatus has a reproducing head to reproduce information from a perpendicular magnetic recording medium that is recorded with servo information, eccentricity correction data and read/write data. The apparatus further has a filter part to filter a reproduced output of the reproducing head by filtering the servo information... Agent: Greer, Burns & Crain

20070223128 - System, method, and apparatus for monitoring stray magnetic fields and protecting disk drives therefrom: A disk drive that protects stored data from stray magnetic fields is disclosed. Sensors for sensing stray magnetic fields are mounted to the base and/or cover of the drive and aligned with the trajectory of the movement of the read/write head. If the sensors, which have memory such as a... Agent: Bracewell & Giuliani LLP

20070223129 - Apparatus and method for controlling bell sound in portable terminal having hard disc drive: Disclosed are an apparatus and a method for controlling a bell sound in a portable terminal having a hard disc drive. The apparatus copies and stores a part of an MP3 (MPEG-1, Audio Layer-3) file in a memory when the MP3 file stored in the hard disc drive is set... Agent: The Farrell Law Firm, P.C.

20070223130 - Circuit for flying height on demand: A hard disk drive with a control circuit that controls a heating element in a head of the drive. The heating element is driven by a voltage. The control circuit varies the voltage during read and write operations of the drive. The voltages are varied to minimize fluctuations in the... Agent: Irell & Manella LLP

20070223133 - Magnetic recording medium and magnetic recording/reproducing apparatus: A magnetic recording medium includes a servo area where servo data used for detecting a position of a magnetic head on a magnetic recording medium is recorded; and a writable data area, arranged side by side with the servo area in a track direction, on which user data is written... Agent: Amin, Turocy & Calvin, LLP

20070223134 - Magnetic recording medium and magnetic recording/reproducing apparatus: A magnetic recording medium includes a servo area where servo data used for detecting a position of a magnetic head on a magnetic recording medium is recorded; and a writable data area, arranged side by side with the servo area in a track direction, on which user data is written... Agent: Amin, Turocy & Calvin, LLP

20070223137 - Audio component mounting system: A mounting system for motor vehicle audio components is disclosed. The mounting system comprises a chassis and at least one vibration damping element. The vibration damping element is mounted within the chassis in a position to support and secure an audio component. The vibration damping element has a slot receiving... Agent: Plumsea Law Group, LLC

20070223138 - Method and apparatus for providing a fluid damping structure with fuel cell for a hard disk drive and vibration sensitive electronic devices: A shock and vibration resistant hard disk drive has a plurality of fluid damping isolation devices disposed between the drive and a supporting frame. The isolation devices are capsules containing either gasses or liquids enclosed in a flexible membrane that spring back to its original shape after the shock or... Agent: David W. Lynch Chambliss, Bahner & Stophel

20070223141 - Forming method of pattern film with narrower width and thin-film magnetic head having magnetic pole layer with narrower width: A method for forming a pattern film with a narrower width than the resolution of an exposure machine and a resist used independently of etching is provided. The method comprises the steps of: forming a first frame layer having end surfaces facing each other across a space having a width... Agent: Buchanan, Ingersoll & Rooney PC

20070223139 - Method of producing magnetic head and magnetic head: The method of the present invention is capable of highly precisely producing a magnetic head. The method comprises the steps of: forming a pole end part of a magnetic layer, which becomes a magnetic pole and which is formed on a surface of a work piece on which the magnetic... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070223140 - Thin-film element having lower layer with narrower width and the thin-film magnetic head having the element: A manufacturing method of a thin-film element having a lower layer with a narrower width is provided, which comprises steps of: forming a first film and a second film on the first film; forming a second layer having a width WUP obtained by trimming the second film; forming a mask... Agent: Buchanan, Ingersoll & Rooney PC

20070223142 - Magnetic storage apparatus: According to embodiments of the present invention, a shielded pole writer and a perpendicular magnetic recording medium suitable thereto are combined to provide high medium SNR and excellent OW characteristic simultaneously. A perpendicular magnetic recording medium of a magnetic storage apparatus mounting a shielded pole writer, including a perpendicular magnetic... Agent: Townsend And Townsend And Crew LLP

20070223143 - Suspension, and head gimbal assembly and disk drive using the same: A suspension is provided for improving reliability in reading/writing of data by improving stiffness in a longitudinal direction of a flexure while realizing low pitch/roll stiffness of a tongue part. The suspension includes: a flexure, including two branched outrigger parts extending to the tip side of the flexure, and a... Agent: Greenblum & Bernstein, P.L.C

20070223144 - Suspension with strengthening plate, head gimbal assembly, and disk drive unit with the same: A suspension for a HGA includes a base plate, a flexure having a suspension tongue for holding a slider, a load beam, and a hinge that are assembled together; wherein a strengthening plate is formed on the suspension tongue to increase stiffness of the suspension tongue. So the invention enable... Agent: Nixon & Vanderhye, PC

20070223145 - Micro-actuator including u-shaped frame and metal support frame, and manufacturing method thereof: A micro-actuator for a head gimbal assembly includes a U-shaped frame and a metal support frame. The U-shaped frame includes a bottom support, a pair of side arms extending from the bottom support, and a PZT element mounted to each of the side arms. Each PZT element is excitable to... Agent: Nixon & Vanderhye, PC

20070223146 - Rotational pzt micro-actuator, head gimbal assembly, and disk drive unit with same: A HGA of the invention includes a slider; a micro-actuator to adjust the position of the slider; and a suspension to support the slider and the micro-actuator. The micro-actuator includes two side arms; a load plate for supporting the slider, which is connected with at least one of the side... Agent: Nixon & Vanderhye, PC

20070223147 - Method of manufacturing thin-film magnetic head: A method of manufacturing a thin-film magnetic head including forming the first shield layer; forming the magnetoresistive device, carried out after forming the first shield layer, a heat treatment providing exchange coupling between the ferromagnetic layer and the antiferromagnetic layer so as to magnetize the ferromagnetic layer in a predetermined... Agent: Oliff & Berridge, PLC

20070223148 - Device with esd protection: A device according to one embodiment includes an electronic component such as an MR sensor, a pair of leads operatively coupled to the electronic component, and shorting material between the leads, the shorting material having been applied by a laser deposition process, the shorting material having been severed. A magnetic... Agent: Zilka-kotab, PC

20070223149 - Nanocontacts having improved contact shape: A nanocontact between contact wires is provided. The contact plane of the first nanocontact wire has a quadrant shape. The contact plane of the second nanocontact wire contacting the first nanocontact wire has a quadrant shape symmetrical with the quadrant contact plane of the first nanocontact wire with respect to... Agent: Grossman, Tucker, Perreault & Pfleger, PLLC

20070223150 - Magnetoresistive effect element, magnetic head, and magnetic disk apparatus: A magnetoresistive effect element includes a magnetization fixed layer including a first crystal grain, having a magnetization direction which is fixed substantially in one direction, a spacer layer arranged on the magnetization fixed layer and having an insulating layer and a metal conductor penetrating the insulating layer, and a magnetization... Agent: Nixon & Vanderhye, PC

20070223151 - Novel seed layer for fabricating spin valve heads for ultra-high density recordings: A method for forming a bottom spin valve sensor element with a novel seed layer and synthetic antiferromagnetic pinned layer and the sensor so formed. The novel seed layer comprises an approximately 30 angstrom thick layer of NiCr whose atomic percent of Cr is 31%. On this seed layer there... Agent: Saile Ackerman LLC

20070217048 - Perpendicular magnetic recording medium, method of evaluating magnetic properties of the same: Embodiments in accordance with the present invention provide a perpendicular magnetic recording medium which is easy to record, offers superior thermal stability of recording magnetization, and allows high-density recording. In one embodiment, a perpendicular magnetic layer with controlled magnetic properties is used as a magnetic storage layer of a perpendicular... Agent: Townsend And Townsend And Crew LLP

20070217054 - Method and apparatus for setting storage capacity of recording media: A recording density of a recording medium is set by establishing a predetermined relationship between guaranteed write/erase endurance values and recording density values for the recording medium, and then selecting a required guaranteed write/erase endurance. A recording density value corresponding to the required guaranteed write/erase endurance is determined from the... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070217064 - Disc driving motor and information recording and reproducing apparatus: The invention provides a motor which is mainly used in an HDD, maintains high accuracy without runout even upon rotation at high speed, and is excellent in resistance to external forces. A disc driving motor of the invention includes: a base; a hub having a ring-shaped disc receiving face on... Agent: Wenderoth, Lind & Ponack L.L.P.

20070217046 - Magnetic pattern replication method and magnetic pattern replication apparatus: Magnetic pattern replication method and apparatus suitable for high-density, compact small diameter magnetic recording medium, and for which a master information carrier are proposed. The magnetic pattern replication method includes the steps of forming on one surface of the master information carrier a plurality of magnetic patterns corresponding to the... Agent: Kratz, Quintos & Hanson, LLP

20070217047 - Master medium for perpendicular magnetic transfer, method of perpendicular magnetic transfer, perpendicular magnetic recording medium and perpendicular magnetic recording apparatus: An aspect of the present invention provides a master medium for perpendicular magnetic transfer, comprising: a disk-like substrate on a surface of which a plurality of protruding magnetic-layer patterns corresponding to information to be transferred to a magnetic recording medium targeted for transfer are formed. In the master medium for... Agent: Sughrue Mion, PLLC

20070217049 - Disk drive control method, disk drive, and write control circuit: A method of controlling a disk drive is disclosed that is capable of precise and real-time detection of an abnormal floating height of a magnetic head over an entire area of a magnetic disk. The method of controlling the disk drive includes the steps of: calculating a servo gain difference... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070217050 - Magnetic disk drive: Embodiments of the present invention provide a magnetic disk drive capable of controlling write/read positions by a method that takes the disturbance in the circumferential direction of a magnetic disk into consideration, thereby making it possible to improve the positioning accuracy. A magnetic disk drive in accordance with an embodiment... Agent: Townsend And Townsend And Crew LLP

20070217055 - Heater control method and storage apparatus: A heater control method for a built-in heater of a head includes turning the heater ON during a time corresponding to consecutive read operation time and write operation time, and turning the heater OFF during a time corresponding to a read operation time after a write operation time.... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain Ltd.

20070217052 - Magnetic recording disk drive with multiple feedforward controllers for rotational vibration cancellation: A disk drive has multiple feedforward controllers for handling external disturbances, such as rotational vibration (RV), that have different external disturbance frequency spectra. Each feedforward controller is designed to be optimal for a canceling a specific associated RV spectrum. The actual RV spectrum acting on the disk drive is determined... Agent: Thomas R. Berthold

20070217053 - Storage device: A storage device includes a controller and a circuit. The controller controls a flying height of a slider from a recording medium as a result of applying voltage between the recording medium and the slider. The slider has a reading element for reproducing information recorded on the recording medium. The... Agent: Kratz, Quintos & Hanson, LLP

20070217051 - System and method for determining head-disk contact in a magnetic recording disk drive by magnetoresistive signal amplitude: A system and method for determining head-disk contact (HDC) in a disk drive uses the signal from the magnetoresistive (MR) read head and does not require the presence of magnetic transitions on the disk. The method thus has application in head-disk testers or “spin stands” to facilitate the design and... Agent: Thomas R. Berthold

20070217056 - Magnetic recording medium and magnetic recording/reproducing apparatus: A magnetic recording medium includes a servo area where servo data used for detecting a position of a magnetic head on a magnetic recording medium is recorded; and a writable data area, arranged side by side with the servo area in a track direction, on which user data is written... Agent: Amin, Turocy & Calvin, LLP

20070217057 - Magnetic recording medium and magnetic recording/reproducing apparatus: A magnetic recording medium includes a servo area where servo data used for detecting a position of a magnetic head on a magnetic recording medium is recorded; and a writable data area, arranged side by side with the servo area in a track direction, on which user data is written... Agent: Amin, Turocy & Calvin, LLP

20070217058 - Magnetic recording medium and magnetic recording/reproducing apparatus: A magnetic recording medium includes a servo area where servo data used for detecting a position of a magnetic head on a magnetic recording medium is recorded; and a writable data area, arranged side by side with the servo area in a track direction, on which user data is written... Agent: Amin, Turocy & Calvin, LLP

20070217059 - Storage device, control device, and control method: Data access is performed to a storage medium having storage areas each having a data portion in that data is stored and an attached portion attached to the data portion. Each attached portion has a data pattern corresponding to a type of access capability and stores control data used in... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070217060 - Algorithm for dsa/microactuator total loop gain calibration: A hard disk drive that includes a voice coil motor and a micro-actuator. The disk drive includes a servo with a voice coil motor loop, a micro-actuator loop and an overall loop. The servo is calibrated by first calibrating the voice coil motor loop, then calibrating the micro-actuator loop and... Agent: Irell & Manella LLP

20070217061 - Deep slot magazine storage library: Disclosed is a deep slot magazine storage library including a library housing defining a magazine cavity and including an active robotic end and a magazine loading and unloading end. Also included is a plurality of deep slot magazines storable by height and width within the magazine cavity, wherein each of... Agent: Cantor Colburn LLP - IBM Tuscon Division

20070217062 - Single elevator system and method for a tape automation system with a base unit and one or more add-on units: For adding on to a tape automation system, a base unit is provided having at least one tape cartridge magazine having a plurality of tape cartridge receiving locations, a tape drive, a tape cartridge pickup which transports the tape cartridge from a tape cartridge receiving location after extraction to a... Agent: Schiff Hardin, LLP Patent Department

20070217063 - Data storage disc carriers: A data storage disc carrier (1) for carrying discs (10). The carrier includes an axial clamping mechanism which incorporates a three legged resilient clamping member (7) that can flees between release and clamping positions to allow easy loading a gripping of discs (10). The clamping member is articulatingly mounted on... Agent: Alston & Bird LLP

20070217065 - Disk holding device and disk recording/reproduction apparatus: This invention provides a disk holding device which may include a plurality of disk holding members and a disk receiving part. The disk holding members may each be provided with a holding projection part projected from the inner periphery side toward the outer periphery side of the disk-formed recording medium;... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20070217066 - Thin film perpendicular magnetic recording head, their fabrication process and magnetic disk drive using it: Thin film perpendicular magnetic head with a narrow main pole capable of a high recording density in excess of 100 gigabits per square inch and generating a high magnetic recording field exceeding 10 kOe (oersted), while also modified to suppress remanent magnetic fields occurring immediately after writing operation. In a... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070217068 - Method of producing magnetic head and magnetic head: The a method of producing a magnetic head is capable of stabilizing deposition rate of a plated magnetic film forming a magnetic pole of a write-head. The method of producing a magnetic head, in which a magnetic pole of a write-head is constituted by a magnetic film, comprises the steps... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070217069 - Perpendicular magnetic recording head and method of manufacturing the same: Embodiments in accordance with the present invention provide a trailing side shield around a main pole and control the gap length on its trailing side to high accuracy so as to increase a recording magnetic field gradient. An etching signal layer is provided on a main pole, and the gap... Agent: Townsend And Townsend And Crew LLP

20070217067 - Perpendicular magnetic recording medium using soft magnetic layer which suppresses noise generation, and perpendicular magnetic recording apparatus therewith: The magnetic recording medium of the present invention has a substrate, a perpendicular magnetic recording layer, and a soft magnetic layer formed therebetween, having a thickness of less than 100 nm, the soft magnetic layer having a magnetic anisotropy in a surface direction, and product Bs·Hc, which is a production... Agent: Sughrue Mion, PLLC

20070217070 - Thin film magnetic head and method of manufacturing the same: Provided are a thin film magnetic head and a method of manufacturing the same, which can locally miniaturized a pole width with high accuracy. A thin film coil is provided in a region located more rearward than a position (a first position) of a rear end of a top shield... Agent: Kenyon & Kenyon LLP

20070217073 - Disk usable with hard disk drive and hard disk drive having the same: A disk usable with a hard disk drive includes a first texture recessively formed in a surface of a substrate of the disk and textured in a first pattern of a first net shape to have a first cross angle where line patterns of the first pattern cross each other,... Agent: Stanzione & Kim, LLP

20070217072 - Magnetic recording medium and method of producing the same: Provided is a magnetic recording medium having less noise and less recording degradation ascribed to “thermal fluctuation”. The magnetic recording medium has a magnetic recording film in which a magnetic region is dispersed in a non-magnetic region. In the magnetic recording medium, the magnetic region includes a hard magnetic layer... Agent: Fitzpatrick Cella Harper & Scinto

20070217074 - Magnetic recording medium for perpendicular magnetic recording: A perpendicular recording medium having a perpendicular magnetic recording layer and a magnetically soft underlayer structure disposed beneath the recording layer. The soft underlayer structure includes at least first and second soft magnetic layers having different magnetic permeabilities to create a magnetic permeability gradient in the soft underlayer structure. One... Agent: Seagate Technology LLC Intellectual Property Department

20070217075 - Patterned media and method of manufacturing the same, and magnetic recording apparatus: A patterned media has a substrate, and a magnetic recording layer on the substrate including protruded magnetic patterns and a nonmagnetic material filled in between the protruded magnetic patterns. In the patterned media, a depth Db and a depth Da, which are defined that Db is a depth from a... Agent: Nixon & Vanderhye, PC

20070217071 - Magnetic recording medium, method of manufacturing the same, and magnetic recording apparatus: According to the present invention, provided is a magnetic recording medium 11 comprising: a non-magnetism base member 1; a lower soft magnetic underlying layer 2 formed on the non-magnetism base member 1; a non-magnetic layer 4 formed on the lower soft magnetic underlying layer 2; an upper soft magnetic underlying... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20070217076 - Nanoscale machined electrode and workpiece, and method of making the same: The invention relates to motor bearing components with features such as fine groove pitch (<100 microns), fine feature widths (<25 microns), varying groove depths and surface profiles in 3D for optimum bearing performance. A method for manufacturing the workpiece, the electrode design features to make the final part and the... Agent: Seagate Technology C/o Mofo Nova

20070217077 - Thin-film magnetic head with little reattachment and manufacturing method of the head: A manufacturing method of a thin-film magnetic head in which a magneto-sensitive portion is formed in a position where the width along the track-width direction is sufficiently small and a bias field from a bias means can be sufficiently received, and the influence of reattachments on reading output is avoided.... Agent: Buchanan, Ingersoll & Rooney PC

20070217078 - Adjacent track readers: Aspects include readers for magnetic storage media. Each reader is operable to read multiple tracks from the storage media simultaneously by using a plurality of active regions, each active region for reading a different track. The active regions may be disposed in rows of columns, and between rows, each active... Agent: Morrison & Foerster LLP

20070217079 - Thin-film magnetic head and manufacturing method thereof: A lower shield layer is formed by being embedded in a first recess formed in an under layer. Accordingly, the distance between the lower shield layer and a slider can be reduced. Also, a second metal layer is formed from above a gap layer covering an electrode extracting layer over... Agent: Brinks Hofer Gilson & Lione

20070217080 - Current perpendicular to plane (cpp) magnetoresistive sensor with back flux guide: A current perpendicular to plane (CPP) magnetoresistive sensor having a free layer that is magnetically coupled with a magnetic shield, thereby providing the free layer with a large effective flux guide. Sensor performance is improved by virtually eliminating demagnetization fields at the back edge of the sensor. The free layer... Agent: Zilka-kotab, PC

20070217081 - Domain wall free shields of mr sensors: A magnetic reader of the present invention comprises an MR sensor shielded by a magnetic shield including single domain soft magnetic materials. The domain wall free magnetic shield includes an unbiased soft magnetic layer and a biased soft magnetic layer separated by a non-magnetic layer. The easy axis of the... Agent: Kinney & Lange, P.A.

20070217083 - Magnetoresistive effect device and method of manufacturing ferromagnetic structure: A spin valve film has a lamination structure of a pinned layer, a non-magnetic intermediate layer and a free layer. The pinned layer is made of ferromagnetic material and has a fixed magnetization direction. The non-magnetic intermediate layer is made of non-magnetic conductive material. The free layer is made of... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20070217082 - Read sensor stabilized by bidirectional anisotropy: A read sensor stabilized by bidirectional anisotropy is disclosed. The read sensor includes a longitudinal flux-closure structure comprising an antiferromagnetic pinning layer, a ferromagnetic bias layer, a nonmagnetic spacer layer, and a ferromagnetic sense layer. In this longitudinal flux-closure structure, the antiferromagnetic pinning layer directly couples to the ferromagnetic bias... Agent: Duft Bornsen & Fishman, LLP

20070217087 - Magnetic thin film and magnetoresistance effect element having a heusler alloy layer containing an additive element: A magnetic thin film has a layer which is formed of an alloy having a ordered crystal structure whose composition formula is represented by XYZ or X2YZ (where X is one or more than one of the elements selected from the group consisting of Co, Ir, Rh, Pt, and Cu,... Agent: Fitch, Even, Tabin & Flannery

20070217085 - Current perpendicular to plane (cpp) magnetoresistive sensor with free layer biasing by exchange pinning at back edge: A current perpendicular to plane (CPP) magnetoresistive sensor having an in-stack bias structure that is pinned by an AFM layer located behind the back edge (stripe height) of the sensor stack. A magnetic coupling layer is exchange coupled to the in-stack bias structure and extends beyond the back edge of... Agent: Zilka-kotab, PC

20070217086 - Magnetic sensor and magnetic disk storage unit: The magnetic sensor is capable of improving variations of output power and asymmetric diversity of output signals of a magnetoresistance effect element. The magnetic sensor comprises hard films sandwiching the magnetoresistance effect element, and the hard films apply bias magnetic fields to the magnetoresistance effect element. Each of the hard... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070217088 - Method and apparatus for providing magnetostriction control in a freelayer of a magnetic memory device: A method and apparatus for providing magnetostriction control in a synthetic free layer of a magnetic memory device is disclosed. A first free layer of CoFe alloy has a first thickness. A second free layer of NiFe alloy has a second thickness. At least one of the CoFe alloy and... Agent: David W. Lynch Chambliss, Bahner And Stophel

20070217084 - Reset device for a biasing element in a magnetic sensor: A device resets a biasing magnetization of a biasing element in a magnetic sensor. The device includes a magnetic structure that is magnetically coupled to the biasing element. A conductive element is disposed around at least a portion of the magnetic structure. When a current is passed through the conductive... Agent: Kinney & Lange, P.A.

20070217089 - Reduction in sensitivity to longitudinal stray fields in differential sensors: One embodiment of the present invention is directed to a read head for a data storage device including a differential sensor for reading data from a data storage medium. The differential sensor includes a first and a second free layer. The magnetization of the free layers is anti-parallel. The read... Agent: Wagner, Murabito & Hao LLP

20070211360 - Signal detection method: The storage device 10 provides a signal detection method for preventing the degradation of an error rate at the time of information reading, caused by the change of a magnetic characteristic due to a non-uniform magnetic storage medium. The storage device 10 comprises a storage medium 11 for storing information,... Agent: Patrick G. Burns Greer, Burns & Crain, Ltd.

20070211363 - Medium scan method for use in disk device: To provide a medium scan method which can be executed for a suitable region at suitable timing, a disk device comprises a storage medium for storing information, a writing unit for writing information to the storage medium by request from an upper device such as a host computer or the... Agent: Greer, Burns & Crain

20070211364 - Magnetoresistive head preamplifier circuit with programmable impedance: A preamplifier circuit for a disk drive system is disclosed. The preamplifier circuit has first and second inputs that sense the voltage on either side of a magnetoresistive (MR) head element, which presents a varying resistance according to the localized magnetic field at a nearby disk surface. The preamplifier circuit... Agent: Texas Instruments Incorporated

20070211365 - Information storage device, write current adjustment method for the information storage device, and write control circuit: There is provided a magnetic disk device or the like which is capable of improving signal quality by suppressing occurrence of erasure of adjacent tracks due to spreading of a writing spot. The magnetic disk device is capable of controlling a steady state value of a write current for writing... Agent: Greer, Burns & Crain

20070211371 - Magnetic disk drive: Embodiments in accordance with the present invention relate to a positioning control system of a magnetic disk drive. Even if there is no phase correlation in a specific vibration component before and after a seek operation of a magnetic head, a resonance filter in accordance with an embodiment of the... Agent: Townsend And Townsend And Crew LLP

20070211375 - Rotor hub, motor, and disk driving device: A rotor hub includes a shaft connecting portion arranged to be connected to a shaft serving as a central axis, a disk loading portion centered about the central axis and arranged to support a disk shaped storage medium mounted thereon, a yoke arranged below the disk loading portion and supporting... Agent: Nidec Corporation C/o Keating & Bennett, LLP

20070211361 - Flying height measurement apparatus and method therefor: Provided is a new apparatus for measuring a flying height of a head requiring none of a specific magnetization pattern, that is, ahead flying height measurement apparatus for use within a disk drive including a reading head, including: a signal replay unit 300 for replaying a signal from the reading... Agent: Kratz, Quintos & Hanson, LLP

20070211362 - Readback system providing a combined sample output including multiple samples per bit: A readback system includes a magnetic sensor that receives a sensor current. The magnetic sensor senses magnetic bits at a bit frequency and generates a sensor output. The readback system includes a channel circuit that modulates the sensor current at a modulation frequency higher than the bit frequency. The channel... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20070211366 - Management of data cartridges in multiple-cartridge cells in an automated data storage library: In an automated library, data cartridges, such as magnetic tape cartridges, are stored in storage cells and accessed by data storage drives. An accessor with a gripper transports cartridges between storage cells and storage drives. Cartridges are prioritized according to their relative importance. A processor manages the placement of the... Agent: Law Office Of Dan Shifrin, PC - Ibm

20070211368 - Magnetic recording medium, magnetic recording apparatus, and servo demodulation circuit: A signal is recorded on a magnetic recording medium by changing a magnetized state of a magnetic member. The magnetic recording medium includes a plurality of servo signal areas in which servo signals for controlling a position of a reproducing head are recorded with different recording frequencies in parallel to... Agent: Patrick G. Burns, Esq. Greer, Burns, Crain, Ltd.

20070211367 - Method for establishing and maintaining radial position for hard disk drive self servo write without seed wedges: Magnetic reference patterns may be generated on a disk or other magnetic media without the need for seed wedges. This involves writing a first magnetic reference pattern to the disk with a servo writer. The disk may then be transferred to a hard disk drive. Control circuitry within the hard... Agent: Garlick Harrison & Markison

20070211369 - Self-writeing of servo patterns: Various embodiments of the present invention allow for the generation of at least one estimated value of a first parameter that is derived from a regularly measured value of a second parameter. In addition, a single control feedback signal can be adjusted via updating of the estimated and regularly measured... Agent: Foley & Lardner

20070211370 - Method for determining read/write head position based on phase detection of a servo pattern: A method determines RW head radial position relative to tracks within a magnetic data disc. This involves sensing both a S-burst signal and a P-burst signal with the RW head. The S-burst signal and P-burst signal are associated with a two-burst servo pattern on the magnetic disc. The S-burst pattern... Agent: Garlick Harrison & Markison

20070211372 - Positioning control device and disk device: The present invention provides a positioning control device and a disk device for shortening a calculation delay time. Upon detection of a position signal from a demodulation circuit, an MCU of the disk device calculates a position error, and following calculation of a control amount, executes determination and correction processing.... Agent: Greer, Burns & Crain

20070211373 - Method and apparatus for balanced shield shunts, leads and pads for electrical noise reduction in read heads: A symmetrical read element circuit for reducing electrical and magnetic noise using signal processing, such as a differential preamplifier. The circuits are symmetrically created on both sides of the read element so that the noise is balanced on both sides of the read element to allow substantial noise reduction by... Agent: David W. Lynch Chambliss, Bahner & Stophel

20070211374 - Recording and/or reproducing apparatus: There is provided a recording and/or reproducing apparatus which may include a cassette insertion slot formed at a front panel, an opening/closing lid for opening/closing the cassette insertion slot, a cassette compartment, and cassette double insertion blocking means. The cassette compartment may include a cassette loading holder for loading and... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20070211376 - Hard disk drive device and method of assembling the hard disk drive device: A hard disk drive device and method for assembling such a device are provided. The hard disk drive device includes storage medium components comprising a drive motor and disk for digital data storage, which are attached to a section of a casing that encloses the drive's mechanical components. Opposite the... Agent: Kenyon & Kenyon LLP

20070211379 - Perpendicular magnetic head: The perpendicular magnetic head is capable of solving the problem of pole-erasing and performing high density recording by a main magnetic pole. The perpendicular magnetic head comprises a write-head including a main magnetic pole, and the main magnetic pole is a magnetic thin film having magnetic anisotropy, in which a... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070211383 - Perpendicular magnetic recording head and method of manufacturing the same: A perpendicular magnetic recording head and a method of manufacturing the same are provided. The perpendicular magnetic recording head includes a main pole, a return yoke, and a coil which generates a magnetic field such that the main pole may record information on a recording medium. The coil has a... Agent: Sughrue Mion, PLLC

20070211381 - Thin-film magnetic head controlling floating amount by locally projecting element portion toward recording medium by thermal expansion and method of manufacturing the same: A thin-film magnetic head which can locally project a reproduction element toward a recording medium and a method of manufacturing the thin-film magnetic head are provided. The thin-film magnetic head includes a reproduction element, a recording element which is stacked on the reproduction element and has a pair of magnetic... Agent: Brinks Hofer Gilson & Lione

20070211382 - Magnetic head and magnetic disk storage apparatus mounting the head: Embodiments in accordance with the present invention provide a magnetic head in which broadening of the write-field distribution in the track-width direction can be decreased without reducing the write-field intensity. A main pole includes a pole tip having a part which provides the write track-width and a yoke part recessed... Agent: Townsend And Townsend And Crew LLP

20070211377 - Magnetic head for perpendicular magnetic recording and method of manufacturing same: A pole layer has an end face located in a medium facing surface, allows a magnetic flux corresponding to a magnetic field generated by a coil to pass therethrough, and generates a write magnetic field for writing data on a recording medium by means of a perpendicular magnetic recording system.... Agent: Oliff & Berridge, PLC

20070211378 - Method of manufacturing magnetic head and magnetic head: The method is capable of manufacturing a reliable magnetic head, in which an upper magnetic coil can be securely insulated from a coil and variation of coil resistance can be restrained. The method of manufacturing a magnetic head having a write-head comprises the steps of: forming a recording coil of... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070211380 - Perpendicular magnetic head: The perpendicular magnetic head is capable of solving the problems of side track erasing and pole erasing. The perpendicular magnetic head of the present invention comprises a write-head, which includes a main magnetic pole emitting magnetic fluxes toward a recording medium. An end face of a pole end is formed... Agent: Greer, Burns & Crain

20070211384 - Perpendicular magnetic write head having a conformal, wrap-around, trailing magnetic shield for reduced adjacent track interference: A perpendicular magnetic write head having a conformal wrap around trailing shield. The write head includes a write pole that can be configured with a trapezoidal shape as viewed from the Air Bearing Surface (ABS) and which includes a wrap around trailing magnetic shield. The magnetic shield has a trailing... Agent: Zilka-kotab, PC

20070211385 - Magnetic head device capable of stabilizing the floating distance between a magnetic functional unit and the surface of a recording medium: A magnetic head device floats above a surface of a rotating recording medium due to airflow. A front positive-pressure surface is formed in the leading side of an opposed surface of a slider, and a rear positive-pressure surface is formed in the trailing side. A front edge portion of the... Agent: Brinks Hofer Gilson & Lione

20070211386 - Flexible printed circuit for head gimbal assembly: A head gimbal assembly includes a slider, a suspension to support the slider, and a flexible printed circuit provided to the suspension. The flexible printed circuit includes multiple traces to electrically connect the slider to a conductive tab and a test tab. The flexible printed circuit includes a grounding trace... Agent: Nixon & Vanderhye, PC

20070211387 - Magnetic head assembly, manufacturing method thereof, flexure, and magnetic disk apparatus: A disclosed magnetic head assembly comprises: a head slider; a flexure for supporting the head slider; and a signal wiring portion disposed on a flexure surface, the signal wiring portion transmitting recording current signals or reproduction signals. The flexure has a slider attachment portion supported by the flexure on an... Agent: Kratz, Quintos & Hanson, LLP

20070211388 - Slider with a constant flying height: The present invention relates to a slider having a constant flying height for an optical drive which is operated at a constant angular velocity. It is an object of the invention to propose a simple and cost-effective solution to allow the flying height of the slider to be kept virtually... Agent: Joseph J. Laks, Vice President Thomson Licensing LLC

20070211389 - Actuator and magnetic head device: An actuator includes a piezoelectric bimorph including a pair of piezoelectric elements and an intermediate electrode provided between the piezoelectric elements, a conductive fastening member for fastening fixed ends of the piezoelectric elements to a base having a ground potential, and a contact member to which a predetermined voltage is... Agent: Robert J. Depke Lewis T. Steadman

20070211390 - Piezoelectric actuator and magnetic disk device: One surface of a piezoelectric actuator is bonded to a suspension via bonding agents. The piezoelectric actuator is bonded to the suspension at two positions sandwiching a coupling portion therebetween. Namely, the bonding is performed at respective one end portions of two piezoelectric active portions, and these end portions are... Agent: Kratz, Quintos & Hanson, LLP

20070211391 - Current-perpendicular-to-plane magneto-resistive element: A current-perpendicular-to-plane magneto-resistive element includes a magneto-resistive film and a pair of upper and lower magnetic shielding films holding the magneto-resistive film therebetween for current feeding. The lower magnetic shielding film has an at least two-layer structure including a crystalline material layer and an amorphous material layer disposed below the... Agent: Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20070211392 - Spin valve with ir-mn-cr pinning layer and seed layer including pt-mn: In a disk drive GMR or TMR head that uses Ir—Mn—Cr as a pinning layer, Pt—Mn is used as part of the seed layer below the pinning layer to enhance GMR and pinning without deleteriously affecting other head characteristics and to improve head thermal stability.... Agent: Rogitz & Associates

20070211393 - Method and apparatus for using a specular scattering layer in a free layer of a magnetic sensor while stabilizing the free layer by direct coupling with an antiferromagnetic layer: A method and apparatus for using a specular scattering layer in a free layer of a magnetic sensor while stabilizing the free layer by direct coupling with an antiferromagnetic layer is disclosed. A specular scattering layer is formed in a free layer of a magnetic sensor while stabilizing the free... Agent: David W. Lynch Chambliss, Bahner & Stophel

20070206306 - Magnetic head drive circuit: A recording head drive circuit drives a recording head that records information on a magnetic recording medium. A switching circuit is a H-bridge circuit which includes a plurality of transistors. The switching circuit switches direction of a write current (Iw) flowing in the recording head, in accordance with a conduction... Agent: Cantor Colburn, LLP

20070206307 - Magnetic recording apparatus and magnetic recording and reproducing apparatus: In a magnetic recording apparatus, a magnetic recording medium has a RAM area on which rewritable information can be recorded. The magnetic recording medium also has a ROM area having a pattern area in which first-type segment sequence of magnetically rewritable magnetic segments and magnetically non-rewritable nonmagnetic segments is fixedly... Agent: Nixon & Vanderhye, PC

20070206313 - Magnetic disk apparatus: Magnetic disk apparatus includes a magnetic head element having a read element and a write element, a heater provided in the magnetic head element for controlling a protruding amount thereof, a write resistance detector that detects a resistance value of the write element, and an MPU (write element temperature calculation... Agent: Kratz, Quintos & Hanson, LLP

20070206314 - Methods and apparatus for controlling read/write duty cycle in a data storage device based on thermal inputs: Methods of controlling an I/O operation of a disk drive include determining a temperature associated with the disk drive, comparing the determined temperature to a temperature threshold, setting a duty cycle limit for the I/O operation in response to the determined temperature exceeding the temperature threshold, and performing the I/O... Agent: David C. Hall Myers Bigel Sibley & Sajovec, P. A.

20070206319 - Method for measuring actuator velocity during self-servo-write: A system comprises a positioning module, a frequency measuring module, a simulation module, and a control module. The positioning module positions an actuator arm adjacent to a track to read spirals that are prewritten using current of a predetermined frequency. The frequency measuring module measures a first frequency of sync... Agent: Harness, Dickey & Pierce P.L.C

20070206318 - Methods and apparatus for constraining transducer velocity based on disk rotational latency while seeking in a disk drive: Methods of controlling seeking of a transducer that is adjacent to a rotatable disk in a disk drive include determining an expected seek time associated with moving the transducer from an initial track to a target track on the disk. An expected rotational latency time is determined which is associated... Agent: David K. Purks Myers Bigel Sibley & Sajovec, P.A.

20070206322 - Stiffness reducing features in a top layer of a laminated top cover: Stiffness reducing features for top covers of data storage systems are provided to prevent delaminating of top layers of the top covers. A top cover for a data storage system includes a bottom layer, a top layer and an adhesive layer that interconnects the top and bottom layers. At least... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20070206304 - Disk apparatus, information processing system, and information providing apparatus: A storing unit stores first correction information for correcting a distortion synchronized with a rotation frequency of servo information of a first disk. A control unit controls positioning of a head on a target track by correcting the servo information of the first disk with the first correction information. Measurement... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070206305 - Information recording/reproducing apparatus: A determining unit retrieves status information relating to recording or reproducing data on the magnetic disk, and determines whether to re-record data recorded in a recording area on the magnetic disk based on the retrieved status information. When the determining unit determines to re-record first data recorded in a first... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070206309 - Data storage cartridge having a plurality of cartridge memories: A data storage cartridge comprises data storage media configured to store data for read and/or write access, wherein the data may be arranged in a plurality of partitions; and a plurality of cartridge memories. Each cartridge memory comprises a communication interface and a memory, wherein the information of the memory... Agent: John H. Holcombe IBM Corporation,IPLaw Dept.

20070206308 - Managing data storage media and multiple cartridge memories of a data storage cartridge: A data storage cartridge comprises data storage media configured to store data for read and/or write access, wherein the data may be arranged in a plurality of partitions; and a plurality of cartridge memories. A control system, for example of a data storage drive, is configured to allocate at least... Agent: John H. Holcombe IBM Corporation,IPLaw Dept.

20070206310 - Dynamically adapting a magnetic tape read channel equalizer: A read channel equalizer of a magnetic tape drive which equalized digitally sampled magnetic signals detected by a read head is dynamically adapted. A detector of equalizer dynamic adaptation logic compares equalizer output signals to desired values that are based on the decoding scheme (such as +2, 0 and −2... Agent: John H. Holcombe IBM Corporation,IPLaw Dept.

20070206311 - Recording-reproducing apparatus and method of detecting dew condensation in recording-reproducing apparatus: A magnetic recording-reproducing apparatus includes a rotary head drum around, a tape loading mechanism, and a control unit for controlling rotation of the rotary head drum and operation of the tape loading mechanism. The control unit includes a monitoring unit that monitors rotational frequency of the rotary head drum at... Agent: Frommer Lawrence & Haug LLP

20070206312 - Hard disk protection system: A hard disk protection system detects an X-axis travel, a Y-axis travel, and a Z-axis travel of a hard disk, and converts them into travel signals to calculate whether a threshold value is reached through the travel signals an algorithm. Reaching the threshold value indicates that the hard disk shakes... Agent: Birch Stewart Kolasch & Birch

20070206316 - Control device, disk device, and seek orbit generation method: A waveform generator generates an acceleration orbit, a velocity orbit, and a position orbit from the seek time. Each orbits multiplied by respective gains, whereupon the orbits are synthesized by a first adder. The resulting composite orbit is multiplied by a seek distance and then passed through a FIR filter... Agent: Patrick G. Burns, Esq. Greer, Burns & Crain, Ltd.

20070206315 - Position control device, disk device, and position control method: The present invention provides a disk device, a control device, and a positioning control method with which positioning in a target position can be performed without expending time on a seek operation even when virtual circular control is performed using an eccentric disk. Virtual circular orbits, each depicting a perfect... Agent: Greer, Burns & Crain

20070206317 - Radial position seek tuning for acoustic performance: Examples of the present invention relate to reduction in acoustic noise by tuning seek characteristics of a servo controller, depending on a radial position of a head relative to a disk. The servo controller can provide compensation for acoustic resonance modes.... Agent: Foley & Lardner

20070206320 - Storage system: A storage system comprises a first plurality of storage cartridges along an accessible side of a path, a second plurality of storage cartridges along a non-accessible side of the path, and a transport device to move the first and second plurality of magazines around the path. The storage system further... Agent: Hewlett Packard Company

20070206321 - Apparatus for mounting removably a disk drive in an electronic device: An apparatus includes a casing, an electrical connector, and a latch unit. The electrical connector is provided in the casing, and is coupled electrically to a terminal of a disk drive when the latter is received in the casing. The latch unit includes a latch member that is provided on... Agent: Ostrolenk Faber Gerb & Soffen

20070206323 - Asymmetric type perpendicular magnetic recording head and method of manufacturing the same: An asymmetric perpendicular magnetic recording head and a method of manufacturing the same, wherein the perpendicular magnetic recording head includes a read head for reading data from a magnetic recording layer and a write head for writing data on the magnetic recording layer. A main pole of the write head... Agent: Sughrue Mion, PLLC

20070206324 - Storage rack with puller assembly: A storage rack comprising a storage unit housing defining at least one aperture extending longitudinally between a forward end and a rearward end. A puller assembly is positioned in the aperture and includes a longitudinal puller body that supports an engagement member adjacent a rear end thereof. The puller assembly... Agent: Ratnerprestia

20070206325 - Patterned medium and production method therefor: The present invention provides a highly reliable patterned medium without generating an error in recording and reproduction, and a magnetic disc memory device using the same. The patterned medium has a substrate, a soft magnetic layer, a non-magnetic layer, an intermediate layer and a recording layer. The recording layer has... Agent: Antonelli, Terry, Stout & Kraus, LLP

20070206326 - Air bearing surface of a hard disk drive head: A head for a hard disk drive. The head includes an air bearing surface that has a central pad. The central pad contains the read/write transducers of the head. The air bearing surface has a particle obstruction pad adjacent to the central pad. The obstruction pad creates a mechanical barrier... Agent: Irell & Manella LLP

20070206327 - Magnetic head, method of manufacturing the same, and magnetic disk unit: A magnetic head is disclosed that includes a head slider having a medium opposing surface to oppose a magnetic recording medium, the head slider being configured to fly by receiving airflow, caused by the movement of the magnetic recording medium, on the medium opposing surface, the medium opposing surface including... Agent: Kratz, Quintos & Hanson, LLP

20070206328 - Flexure including controlled static attitude and load point contact: A flexure includes a base and a pair of beams coupled to the base at fixed-ends. The pair of beams are joined by a cross-beam at free-ends of the beams. A tongue extends from the cross-beam between the pair of beams towards the base. The flexure also includes a bend... Agent: Seagate Technology LLC C/o Westman Champlin & Kelly, P.A.

20070206329 - Center rail slider for disk drives: A method and device allows a magnetic disk drive system to avoid thru- talk between opposing read/write devices, or gaps, within heads for magnetic data storage media. Certain head designs for magnetic disk drives require the read/write devices in opposing heads to be situated directly across from each other when... Agent: Powell And Associates

20070206330 - Data storage device and disk drive: Embodiments in accordance with the present invention provide achieve an increase of storage capacity and thinning down of a disk drive by reducing effects from an error in an assembly position of a ramp. A data storage device according to an embodiment of the present invention includes a head, a... Agent: Townsend And Townsend And Crew LLP

20070206331 - Data storage device: Embodiments in accordance with the present invention relate to suppressing deterioration in rigidity and dynamic characteristics of a tab even when an initial point of contact between a tab and a ramp during unloading is set closer to the outer periphery of a disk. A data storage device in one... Agent: Townsend And Townsend And Crew LLP

20070206332 - Laminated actuator arm in a hard disk drive: A laminated actuator arm of a hard disk drive. The actuator arm can be laminated with a relatively stiff material and a low density material. The stiff material can provide structural integrity for the arm. The low density material may be a damping material that damps shock and vibration energy... Agent: Irell & Manella LLP

20070206333 - Magnetoresistive head and a manufacturing method thereof: Embodiments in accordance with the present invention reduce the influence of etching damage at junction edge of a magnetoresistive film in the sensor height direction, lower the deterioration of dielectric breakdown voltage between an upper magnetic shield layer and a lower magnetic shield layer and instability of reproducing property resulting... Agent: Townsend And Townsend And Crew LLP

20070206336 - Cpp giant magnetoresistive element: A CPP giant magnetoresistive element includes a multilayer film including a lower pinned magnetic layer having a laminated ferrimagnetic structure including a lower first pinned magnetic sublayer, a lower nonmagnetic intermediate sublayer, and a lower second pinned magnetic sublayer; a lower nonmagnetic layer; a free magnetic layer; an upper nonmagnetic... Agent: Brinks Hofer Gilson & Lione

20070206335 - High coercivity hard magnetic seedlayer: Methods and apparatus provide improved properties of a hard bias layer of a magnetoresistance sensor. The properties of the hard bias layer are improved by using a multilayer seed structure that includes a chromium-containing layer disposed between two tungsten-containing layers.... Agent: Patterson & Sheridan, L.L.P.

20070206334 - Method of manufacturing magneto-resistive device, magnetic head, head suspension assembly and magnetic disk apparatus: A method is provided for manufacturing a magneto-resistive device. The magneto-resistive device is for reducing the deterioration in the characteristics of the device due to annealing. The magneto-resistive device has a magneto-resistive layer formed on one surface side of a base, and an insulating layer formed of two layers and... Agent: Oliff & Berridge, PLC