Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
03/2001
03/06/2001US6197367 Magnetic recording medium, method of fabricating magnetic recording medium, and magnetic storage
03/06/2001US6197364 Production of electroless Co(P) with designed coercivity
03/06/2001US6196897 Automatic lapping method and a lapping apparatus using the same
03/06/2001US6196047 Method and system to measure torque per unit current as a function of angle in hard disk drive actuators
03/06/2001US6195872 Method of manufacturing a thin film magnetic head
03/06/2001US6195871 Method of manufacturing magnetic head elements
03/01/2001WO2001015165A1 Actuator shock snubber
03/01/2001WO2001015151A1 Near field optical head and method for manufacturing the same
03/01/2001WO2001015147A1 Magnetic recording and reproducing device
03/01/2001WO2001015146A1 Cleaning card
03/01/2001WO2001015145A1 Production method for thin film magnetic head
03/01/2001WO2000051126A9 Disk apparatus
03/01/2001DE10037479A1 Schaltungsanordnung und Verfahren zum Auffrischen von Daten, die mit einer Dichte aufgezeichnet sind, die ausreichend hoch ist, eine thermische Verschlechterung durchzumachen Circuit arrangement and method for refreshing data that are recorded with a density which is sufficiently high to undergo a thermal deterioration
03/01/2001DE10022927A1 Signal processor for detecting recorded data in a magnetic disc, has maximum likelihood decoder that determines likelihood of state transition corresponding to sampled level based on likelihood function
02/2001
02/28/2001EP1079388A1 Image/voice data conversion device and disk unit using it
02/28/2001EP1079382A1 Magnetic head device and record/playback device
02/28/2001EP1079373A2 Glass-ceramic substrate for an information storage medium and a method for manufacturing the same
02/28/2001EP1078361A1 Storage disk comprising depressions and/or raised features
02/28/2001EP1078360A1 Controlling a media master writing machine to produce curvilinear servo sector patterns
02/28/2001EP1077777A1 Apparatus for differential zone lubrication of magnetic recording media and related methods
02/28/2001EP0807929B1 Optical disk provided with bar code
02/28/2001CN1285948A Highly oriented magnetic thin films, recording media, transducer, devices made therefrom and methods of making
02/28/2001CN1285947A Magnetic recording/reproducing device
02/28/2001CN1285946A Modeling position error nonlinearity to improve servo performance
02/28/2001CN1285585A Method for making magnetic recording medium
02/28/2001CN1062675C Information recording medium, equipment and reader and recording method
02/28/2001CN1062673C Magnetic recording disk for contact recording
02/28/2001CN1062672C Contact recording silder for use in lubricant containing information storage system
02/28/2001CN1062671C Full erase head assembler for video cassette recorder
02/28/2001CN1062670C Granular multilayer magnetoresistive sensor mfg. method
02/27/2001US6195684 Conference aiding system and computer memory product for relating an object to a file on a display screen
02/27/2001US6195512 Camera adapted for films provided with magnetic storage portions
02/27/2001US6195499 Magnetic recording and/or reproducing apparatus
02/27/2001US6195240 Spin valve head with diffusion barrier
02/27/2001US6195239 Magnetoresistance effect film and magnetoresistance effect type head
02/27/2001US6195238 Tape head azimuth adjustment
02/27/2001US6195237 Flexure limiter with snagging feature
02/27/2001US6195236 Magnetic head assembly, having a spring arm configured for removable attachment to a carriage arm
02/27/2001US6195235 Slider with deposited roughened surface structure
02/27/2001US6195234 Magnetic discs with raised features in the clamping area
02/27/2001US6195233 Perpendicular thin-film magnetic head
02/27/2001US6195232 Low-noise toroidal thin film head with solenoidal coil
02/27/2001US6195231 Thin film magnetic data transfer transducer
02/27/2001US6195230 Disk head assembly with multiple read and/or write transducers for improved performance
02/27/2001US6195229 Thin film MR head and method of making wherein pole trim takes place at the wafer level
02/27/2001US6195228 Thin, horizontal-plane hall sensors for read-heads in magnetic recording
02/27/2001US6195227 Integrated 3D limiters for microactuators
02/27/2001US6195222 Disk drive with seek profile selection based on a queued vs. non-queued environment
02/27/2001US6195220 Method and apparatus utilizing field ratioing demodulation techniques for a null-type servo pattern
02/27/2001US6195219 Method and apparatus for improving a thermal response of a magnetoresistive element
02/27/2001US6195218 Disk drive which efficiently stores zone parameter sets for a plurality of disk surfaces
02/27/2001US6195215 Measurement apparatus for use in recording unit provided with control means for controlling write and read parameters
02/27/2001US6195028 Amplifier gain control method using conditional updating
02/27/2001US6194896 Method of controlling magnetic characteristics of magnetoresistive effect element and of magnetic head with the element, magnetic head device with magnetoresistive effect element, and magnetic disk unit with the device
02/27/2001US6194892 Integrated position sensor for a disk drive microacuator
02/27/2001US6194796 Long-stroke voice coil linear actuator
02/27/2001US6194360 Magnetic recording device
02/27/2001US6194058 Multi-layer magnetic recording medium, method and system of manufacture
02/27/2001US6194048 Magnetic recording disk
02/27/2001US6194047 Magnetic recording medium
02/27/2001US6194045 Rigid disc substrate comprising a central hard core substrate with a hard, thermally and mechanically matched overlying smoothing layer and method for making the same
02/27/2001US6194025 Forming lubricant overcoating; immersion in solution, pressurization
02/27/2001US6193590 Abrasive tape for texturing magnetic recording media
02/27/2001US6193584 Apparatus and method of device stripe height control
02/27/2001CA2207076C Methods and apparatus for controlling access to a recording disk
02/22/2001WO2001013387A1 Method for producing a magnetic tunnel contact and magnetic tunnel contact
02/22/2001WO2000063906B1 Method and apparatus for correcting digital asymmetric read signals
02/22/2001WO2000051110A8 Vibration control of piezoelectric microactuator
02/22/2001DE19938215A1 Verfahren zur Herstellung eines magnetischen Tunnelkontakts sowie magnetischer Tunnelkontakt A method of manufacturing a magnetic tunnel junction and a magnetic tunnel junction
02/21/2001EP1076897A1 Magnetic head having a layer structure
02/21/2001CN1285078A Ferromagnetic powder
02/21/2001CN1285071A Underlayer powder for coating-type magnetic recording media and process for producing the same
02/21/2001CN1284710A Method and device for production of magneto-resistive element, production control and valuation software and system
02/21/2001CN1062371C Equalizer circuit of video magnetic tape recorder
02/21/2001CN1062366C Welding structure of magnetic hand and its production method
02/20/2001US6192185 Recording and reproduction of an information signal in a short play and a long play mode
02/20/2001US6192182 Digital information signal recording apparatus and method thereof
02/20/2001US6192013 Disk reproducing apparatus controlling read signal from a disk by using demodulated identifying signal and stored identifying signal in a memory
02/20/2001US6191926 Spin valve magnetoresistive sensor using permanent magnet biased artificial antiferromagnet layer
02/20/2001US6191925 Dual element read with shaped elements
02/20/2001US6191924 Bearing for an actuator of a disc drive
02/20/2001US6191923 Magnetic head slider assembly for magnetic disk recording/reproducing apparatus
02/20/2001US6191919 Magnetic transducer with debris guiding channels having non-vertical sloping walls formed in a tape bearing surface
02/20/2001US6191918 Embedded dual coil planar structure
02/20/2001US6191917 Thin film tape write head for dual frequency operation
02/20/2001US6191916 Thin film magnetic head and method of manufacturing the same
02/20/2001US6191915 Suspension for disc drive that is capable of restraining excessive inclination of a head or occurrence of dimple separation when it is shocked, without enhancing the stiffness of a flexure
02/20/2001US6191913 Motor loading system for a disk drive
02/20/2001US6191912 System and method for formatting disc surfaces
02/20/2001US6191911 Positioning apparatus for hard disk servowriter
02/20/2001US6191910 Rotary head cleaning apparatus and magnetic recording-reproducing apparatus
02/20/2001US6191909 Polling a preamplifier within a disk drive to remotely determine pre-established parametric values
02/20/2001US6191908 Thermal asperity compensating method, data reproduction error compensating method, automatic gain control system and magnetic disk unit
02/20/2001US6191907 Head drum for a magnetic tape recorder
02/20/2001US6191906 Method for estimating sampling phase from synchronously demodulated samples of sinusoidal waveforms
02/20/2001US6191905 Magnetic disc apparatus
02/20/2001US6191904 Data sector timing compensation technique based upon drive eccentricity
02/20/2001US6191902 Magnetic disk apparatus and magnetic disk medium
02/20/2001US6191901 Disk drive which detects head flying height using first and second data patterns with different frequencies
02/20/2001US6191643 Voltage boost circuitry for hard drive write preamplifiers