Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826) |
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01/23/2001 | US6178072 Keeper layer without sense current shunting in a giant magnetoresistive (GMR) head |
01/23/2001 | US6178071 Spin-valve type thin film element and its manufacturing method |
01/23/2001 | US6178070 Magnetic write head and method for making same |
01/23/2001 | US6178069 Microactuator and method of manufacturing the same |
01/23/2001 | US6178068 Quasi contact head having a disk contacting portion |
01/23/2001 | US6178066 Method of fabricating an improved thin film device having a small element with well defined corners |
01/23/2001 | US6178065 Thin film magnetic head and manufacturing method of the head |
01/23/2001 | US6178064 Air bearing slider with shaped taper |
01/23/2001 | US6178060 Current profile shaping to reduce disc drive seek time variation and acoustic noise generation |
01/23/2001 | US6178059 Method for writing servo information on a magnetic recording disk |
01/23/2001 | US6178058 Off-track write protection method and system for induced mechanical disturbance on a disk drive |
01/23/2001 | US6178057 Disk unit and read/write control method |
01/23/2001 | US6178056 Disk drive employing state variable trap registers for providing stored servo and user data state variables to sampled-data channel |
01/23/2001 | US6178055 Low ripple negative voltage supply for a disc drive |
01/23/2001 | US6178054 Selecting write fault thresholds by head and disc location in a disc drive |
01/23/2001 | US6178053 Storage apparatus for reducing a read error caused by a thermal asperity of a magneto-resistive head |
01/23/2001 | US6177208 Used for an auxiliary recording system of computers; magnetic layer consists of non-magnetic oxide (silicon, aluminum, tantalum, yttrium, titanium) or nitride of boron, silicon, aluminum and magnetic alloy of cobalt and platinum |
01/23/2001 | US6177207 Inductive type combination read/write thin film magnetic head to be mounted on the hard disk device |
01/23/2001 | US6177204 Ferromagnetic GMR material and method of forming and using |
01/23/2001 | US6177168 DVD disc with four information layers, and method for making same |
01/23/2001 | US6176932 Thin film deposition apparatus |
01/23/2001 | US6176245 Web cleaning and destaticizing apparatus |
01/23/2001 | US6176005 Method of making read head with improved lead layers |
01/23/2001 | US6175984 Apparatus for cleaning precision components |
01/18/2001 | WO2001004970A1 Ferromagnetic double quantum well tunnel magneto-resistance device |
01/18/2001 | WO2001004898A1 Magneto-optical disk recording and/or reproducing device |
01/18/2001 | WO2001004879A1 Tracking system for recording/reading a data medium and recording medium |
01/18/2001 | WO2001004878A1 Magnetoresistance effect head, method for producing magnetoresistance effect head, and information reproducing device |
01/18/2001 | WO2001004725A2 Servo write head |
01/18/2001 | WO2001004655A1 Method and apparatus for testing magnetic head elements |
01/18/2001 | WO2000063894B1 Dual stage servo controller |
01/18/2001 | WO2000051112B1 Advanced servo writing method for hard disc drives |
01/18/2001 | DE10034351A1 Mehrstufiger Kontaktaufbau und Verfahren zur Herstellung von dicht gepackten Anschlüssen bei magnetischen Aufzeichnungsköpfen A multi-stage contact structure and method for the production of densely packed connections in magnetic recording heads |
01/18/2001 | DE10029593A1 Recording and reproducing data on storage medium in which storage medium is part of read/write signal path |
01/18/2001 | DE10020190A1 Defect information management method for magnetic disc systems e.g. hard-disc drives, involves changing displaced address of one set of first defect elements so that second defect is localised via resulting defect list |
01/17/2001 | EP1069780A2 Digital serial data interface |
01/17/2001 | EP1069558A2 Tape driving computer system |
01/17/2001 | EP1069557A2 Drive circuits for magnetic heads and winding configurations of magnetic heads |
01/17/2001 | EP1069553A1 Magnetic recording medium and polyester film therefor |
01/17/2001 | EP1069552A1 Process for assembling a microactuator and a transducer in a hard disk R/W unit |
01/17/2001 | EP1068541A1 Magnetic digital signal coupler |
01/17/2001 | EP1068163A1 Silicon carbide memory board substrate with a germanium and silicon coating |
01/17/2001 | EP0649136B1 A method for recording digital data |
01/17/2001 | CN1280370A Flexible wiring base unit and wiring board |
01/17/2001 | CN1280356A Base board for magnetic disc, method for producing disc and disc base board |
01/17/2001 | CN1060905C Recording format, method and apparatus for audio signal of VCR |
01/17/2001 | CN1060875C Magnetic resistance effective film magnetic head |
01/17/2001 | CN1060874C Method for manufacture of magnotic head and clamp for closing casing of magnetic head during manufacture same |
01/16/2001 | US6175629 Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk |
01/16/2001 | US6175541 Data recording medium and recording/reproducing apparatus for providing optimum position of mark start and end parts |
01/16/2001 | US6175477 Seed and cap layers of spin valve are formed of a non-magnetic, electrically insulating oxide of nickel and manganese which improves thermal stability and giant magnetoresistance coffiecinet of the sensor |
01/16/2001 | US6175476 The high resistivity antiparallel coupling layer typically is formed of rhenium; high resistivity of the antiparallel coupling layer reduces shunt current through that layer to improve giant magnetoresistance ratio of spin valve |
01/16/2001 | US6175475 Fully-pinned, flux-closed spin valve |
01/16/2001 | US6175474 Base plate with improved torque retention |
01/16/2001 | US6175473 Magnetic head in which a core assembly is mounted on a rail formed on a slider |
01/16/2001 | US6175472 Method for generating a position error signal calibration curve in a hard disk drive |
01/16/2001 | US6175469 Disc drive magnet housing electro mechanical resonance dampening system |
01/16/2001 | US6175465 Head positioning control system for use in a disk storage drive |
01/16/2001 | US6175463 Architecture for hard disk drive write preamplifiers |
01/16/2001 | US6175462 High input impedance single ended, low supply voltage magnetoresistive preamplifier circuits |
01/16/2001 | US6175461 Rotary head block with rotary transformer having separate channels for power signal and playback signal |
01/16/2001 | US6175460 Magnetic recording and reproduction apparatus |
01/16/2001 | US6175459 Magnetic disk drive with a disk medium defect detector and read channel IC used in the drive |
01/16/2001 | US6175458 Control of servo timing mark detection windows |
01/16/2001 | US6175457 Dual polarity thermal asperity detector for direct access storage device (DASD) |
01/16/2001 | US6175456 Circuit for controlling the write current of a magnetic disk recording apparatus and method for optimizing the write current |
01/16/2001 | US6174827 Glass-ceramic substrate for an information storage medium |
01/16/2001 | US6174736 Method of fabricating ferromagnetic tunnel junction device |
01/16/2001 | US6174598 Magnetic recording medium, non-magnetic alloy film and sputtering target |
01/16/2001 | US6174597 Magnetic recording apparatus |
01/16/2001 | US6174582 Fabricating by depositing a seed layer of a refractory metal such as tantalum, and reactive element such as nitrogen or oxygen; depositing a nonmagnetic underlayer onto seed layer, and depositing a magnetic layer; high coercivity; disk drives |
01/16/2001 | US6174218 Bow compensated lapping |
01/16/2001 | US6173486 Thin film magnetic head with self-aligned pole tips |
01/16/2001 | US6173485 Method for manufacturing magnetic head apparatus with slider and suspension |
01/16/2001 | CA2146318C Position sensing systems including magnetoresistive elements |
01/16/2001 | CA2095035C Unshielded horizontal magnetoresistive head and method of fabricating same |
01/11/2001 | WO2001003131A1 Spin bulb magnetoresistance effect head and compound magnetic head using it and magnetic recording medium drive unit |
01/11/2001 | WO2001003130A1 Spin-valve magnetoresistance effect head, composite magnetic head comprising the same, and magnetoresistance recorded medium drive |
01/11/2001 | WO2001003129A1 Method of manufacturing thin-film magnetic head |
01/11/2001 | WO2001003128A1 Sealing glass for magnetic head and magnetic head using the same |
01/11/2001 | WO2001003127A1 Head slider and recording medium drive |
01/11/2001 | WO2001002300A1 Method for making m-type hexaferrite powders or wafers |
01/11/2001 | WO2000063907A3 Rotationally optimized seek initiation |
01/11/2001 | WO2000063892B1 Inertial latch for mobile disc drive |
01/11/2001 | DE19930981A1 Mehrschichtige, biaxial orientierte Polyesterfolie, Verfahren zu ihrer Herstellung und ihre Verwendung als Magnetbandfolie ohne Rückseitenbeschichtung Multi-layer, biaxially oriented polyester film, process for their preparation and their use as a magnetic tape film without backcoat |
01/11/2001 | DE10032565A1 Magnetic disc substrate for external computer data storage units has a specified linear expansion coefficient in both thickness and radial directions |
01/10/2001 | EP1067567A1 Diskette type memory card adapter, magnetic sensor therefor magnetic core, method for manufacturing the magnetic core |
01/10/2001 | EP1067542A2 Data recording apparatus and method, and data playback apparatus and method |
01/10/2001 | EP1067518A2 Magnetic recording medium |
01/10/2001 | EP1067517A1 Magnetic recording medium |
01/10/2001 | EP1067516A1 Magnetic recording medium |
01/10/2001 | EP1067515A2 Recording/reproducing head and recording/reproducing apparatus incorporating the same |
01/10/2001 | EP1067302A1 Systems for recording and/or playing magnetic tapes equipped with drum assemblies, drum assemblies and methods for assembling such products |
01/10/2001 | EP1067102A2 Substrate for information recording medium and magnetic recording medium composed of crystallized glass |
01/10/2001 | EP1067101A2 Process for preparation of crystallized glass for information recording disk |
01/10/2001 | EP1066960A2 Multilayered, biaxially oriented polyester film, method for its production and its use as magnetic tape film free from back side coating |
01/10/2001 | EP1066634A1 Data storage apparatus and methods |
01/10/2001 | CN1279465A Sliding support structure of disc machine |
01/10/2001 | CN1279464A Magnetic head assembly with IC core arranged on floatation part of mangetic disc by ultrasonic welding process |
01/10/2001 | CN1279463A Soft magnetic film and magnetic head therewith |