Patents
Sitemap › G11 - Information storage › G11B - Information storage based on relative movement between record carrier and transducer › G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
06/2003
06/24/2003US6583954 Thin-film magnetic head and method of manufacturing same
06/24/2003US6583953 Silicon carbide overcoats for information storage systems and method of making
06/24/2003US6583948 Disc recording/reproducing apparatus and servo signal writing apparatus
06/24/2003US6583946 Method of providing read bias during servo block write
06/24/2003US6583942 Method and apparatus for determining equalized signal-to-noise ratio in a storage device
06/24/2003US6583941 Method and apparatus for thermal asperity recovery for word sync detection in data channels
06/24/2003US6583629 Magnetic digital signal coupler monitor
06/24/2003US6583078 Oxides of silicon, aluminum, magnesium and titanium
06/24/2003US6583077 Glass-ceramic composition for recording disk substrate
06/24/2003US6582889 A two layer structure resist pattern with a T-shaped cross section, overhang portions is heat treated so that it inclines downward
06/24/2003US6582826 Glass-ceramics
06/24/2003US6582815 Magnetic recording medium and manufacturing method of the same
06/24/2003US6582768 Extrusion-type coating method and apparatus
06/24/2003US6582758 Orientation-determining film formed on nonmetallic substrate which has undergone texturing is subjected to oxidation or nitridation, forming a nonmagnetic (which prevents exfoliation from substrate) and magnetic undercoat film
06/24/2003US6582279 Apparatus and method for reclaiming a disk substrate for use in a data storage device
06/24/2003US6582129 Compound bearing apparatus, and spindle motor and swing arm for hard disk drive means including such bearing apparatus
06/24/2003US6581272 Method for forming a bottom spin valve magnetoresistive sensor element
06/24/2003US6581271 Method of manufacturing thin-film magnetic head
06/21/2003CA2366199A1 Cycling activity belt
06/19/2003WO2003050186A1 Ramp for hard disc
06/19/2003WO2001080238A8 Improved read/write channel
06/19/2003US20030113588 Magnetic recording medium and method of manufacturing the same
06/19/2003US20030113587 Magnetic recording medium
06/19/2003US20030113586 Magnetic recording medium
06/19/2003US20030113585 Magnetic recording medium
06/19/2003US20030113584 Magnetic recording medium
06/19/2003US20030113583 Servomechanisms; crystal structure
06/19/2003US20030113582 Via radio frequency radiation absorption by underlayers, which eliminates side effects of furnace annealing
06/19/2003US20030113524 Magnetic films having magnetic and non-magnetic regions and method of producing such films by ion irradiation
06/19/2003US20030113512 Glass substrate for information recording medium, method of manufacturing the substrate, magnetic recording medium using the glass substrate, and method of manufacturing the medium
06/19/2003US20030113506 Substrate for an information recording medium, information recording medium using the substrate, and method of producing the substrate
06/19/2003US20030113503 Master disk for transferring magnetic pattern and magnetic recording medium
06/19/2003US20030112733 Expected value generation unit and a data reproduction apparatus
06/19/2003US20030112564 Magnetoresistive element using an organic nonmagnetic layer
06/19/2003US20030112563 Magnetic reproducing head, head drum apparatus, and magnetic recording-reproducing apparatus
06/19/2003US20030112562 Spin valve sensor for high areal density applications
06/19/2003US20030112561 Narrow core width, capable of restricting side erasure and record bleeding
06/19/2003US20030112560 Magnetic hard disk having concentric magnetic tracks with flat surface and fabrication method thereof
06/19/2003US20030112555 Thin film magnetic head and method of manufacturing the same
06/19/2003US20030112554 Magnetic transducer having inverted write element with zero delta in pole tip width
06/19/2003US20030112547 Head positioning device and disk drive using same
06/19/2003US20030112546 Method and apparatus for tracking radially-dependent repeatable run-out
06/19/2003US20030112545 Written-in error compensation method for coherent repeatable runout
06/19/2003US20030112544 Efficient feedforward compensation for repeatable runout in a disc drive
06/19/2003US20030112543 Common mode transient reduction circuit for improving transient response of an operational transconductance amplifier
06/19/2003US20030112542 Optical aperture for data recording having transmission enhanced by surface plasmon resonance
06/19/2003US20030112541 Methods and apparatus determining and/or using overshoot control of write current for optimized head write control in assembled disk drives
06/19/2003US20030112540 Apparatus and method employed in disk drive to enable single signal line to be used for transmission of both read and control signals
06/19/2003US20030112539 Method of interleaving servo information fields for track following and seeking and a recording medium including interleaved servo information fields
06/19/2003US20030112538 Adaptive event-based predictive failure analysis measurements in a hard disk drive
06/19/2003US20030112537 Methods for detecting and mitigating the effects of hard drive head crashes
06/19/2003US20030111856 Bundling, carrying and storing device
06/19/2003US20030111335 Antiferromagnetic layer and a ferromagnetic layer laminate
06/19/2003US20030110803 Method of manufacturing glass substrate for magnetic disks, and glass substrate for magnetic disks
06/19/2003US20030110711 Polishing composition
06/19/2003US20030110710 Acidic abrasives; for magnetic disks, semiconductors
06/18/2003EP1320090A2 Magnetic head and data recording and reproduction device
06/18/2003EP1320088A2 Master information carrier for magnetic transfer
06/18/2003EP0870269B1 Method and apparatus for secure data storage and manipulation using magnetic media
06/18/2003EP0818038B1 Magnetic head with magnetoresistive sensor, and scanning device provided with the magnetic head
06/18/2003CN1425200A Head gimbal assembly with piezoelectric microactuator
06/18/2003CN1424801A Rotary drivers
06/18/2003CN1424715A Soft magnetic record medium and production thereof
06/18/2003CN1424714A Magnetic head block and supporter, record regenerator
06/18/2003CN1424271A Ion exchange surface enhancing method for glass substrates of magnet recording discs
06/18/2003CN1112038C Digital VCR with non-standard speed playback control
06/18/2003CN1111845C Slider for optical disc data storage system
06/18/2003CN1111844C Magnetic head and method of manufacturing the same
06/18/2003CN1111843C 磁头 Magnetic head
06/18/2003CN1111842C Magnetic disc reproducing device and method for controlling it
06/17/2003US6581185 Apparatus and method for reconstructing data using cross-parity stripes on storage media
06/17/2003US6580768 Adaptive maximum likelihood detection
06/17/2003US6580687 Device for positioning a transducing head by means of a drive and a microactuator
06/17/2003US6580686 Information recording medium recording data on wobbled groove structure of recording medium
06/17/2003US6580685 Optical recording medium with aligned prepit portion
06/17/2003US6580671 Digital audio recording medium and reproducing apparatus thereof
06/17/2003US6580667 Magneto-optical reproducing head having a plural transfer facing surfaces and insulation gaps
06/17/2003US6580589 Pinned layer structure for a spin valve sensor having cobalt iron (CoFe) and cobalt iron oxide (CoFeO) laminated layers
06/17/2003US6580588 Resettable dual AP pinned valve sensor insensitive to sense current direction and having symmetrically balanced fields about a free layer
06/17/2003US6580587 Quad-layer GMR sandwich
06/17/2003US6580586 Magnetic transducer with recessed magnetic elements
06/17/2003US6580585 Magnetic disk drive with load/unload structure having lubricant reservoir
06/17/2003US6580584 Head assembly having leading edge step scheme for tuned air entrainment
06/17/2003US6580583 Magnetic head with integrated circuit on a rigid body
06/17/2003US6580581 Recovery of lateral position of a servo system with respect to longitudinal servo bands of a magnetic tape
06/17/2003US6580580 Magnetic memory drive and optical device
06/17/2003US6580579 Disturbance rejection for disc drives using adaptive accelerometer feedforward servo
06/17/2003US6580578 Method and apparatus for presenting both sides of a media to a read/write head in a storage device
06/17/2003US6580577 Magnetic tape apparatus with forced magnetic tape cleaning process
06/17/2003US6580575 Process and temperature resistant active damping circuit for inductive write drivers
06/17/2003US6580573 Disk drive having a channel circuit which receives a read signal representing data in a data sector and data in a servo sector in a first order and demodulates the read signal to provide data sector data and servo-sector data in a second order
06/17/2003US6580572 Combination glide test/burnishing head and head suspension
06/17/2003US6580270 Magnetoresistive sensor or memory elements with decreased magnetic switch field
06/17/2003US6580266 Thin film delamination detection for magnetic disks
06/17/2003US6580238 Motor driver
06/17/2003US6579728 Fabrication of a high resolution, low profile credit card reader and card reader for transmission of data by sound
06/17/2003US6579665 Focused particle beam system for milling a recording head pole-tip without irradiating a read head
06/17/2003US6579635 Smoothing and stabilization of domain walls in perpendicularly polarized magnetic films
06/17/2003US6579634 Plurality of magnetic components embedded in a pattern in an isolating component comprising a magnetic component of large coercive force and one of a magnetic component of small coercive force
06/17/2003US6579613 Recording medium with limited using period
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