Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
09/1994
09/13/1994US5347407 Method and system for removing particles without requiring a separate cleaning mechanism from a tape in a tape drive system
09/13/1994US5347406 Digital video recording apparatus for recording digital video signals of reduced bit rate on magnetic tape having particular thickness, energy product and surface roughness
09/13/1994US5347405 Magnetic recording correction circuit for reducing interference waves by third-degree inter-modulation distortions
09/13/1994US5347256 Rotary transformer
09/13/1994US5346761 Flexible magnetic recording media having a backing coating containing a polyurethane resin having a phosphate group and precipated silica
09/13/1994US5346758 Magnetic coating composition and magnetic recording medium
09/07/1994EP0614184A2 Digital recording and reproducing
09/07/1994EP0614175A1 Air bearing magnetic head sliders
09/07/1994EP0614174A2 Servo circuit for magnetic disk apparatus
09/07/1994EP0614173A2 Magnetic head and method for manufacture thereof
09/07/1994EP0613579A1 Small size constant torque voice coil motor
09/07/1994EP0613578A1 Method and apparatus for thermal calibration of hard disk drive.
09/07/1994CN1091885A A recording current setting method and an information signal recording apparatus
09/07/1994CN1091882A Data placement on tape for a digital video tape recorder suitable for high speed picture playback
09/07/1994CN1025878C Piston ring assembly for stirling engine
09/06/1994US5345431 Write and erase assembly for magneto-optic drive apparatus
09/06/1994US5345354 Magnetic read/write head having a reduced thickness closure core
09/06/1994US5345353 Step projection air bearing slider with improved stiction performance and wear resistance
09/06/1994US5345348 Controlling the moving speed of a magnetic head by varying the gain in response to the sign of the error signal
09/06/1994US5345346 Positive feedback low input capacitance differential amplifier
09/06/1994US5345344 System and method for removing noise when switching between heads in a digital video cassette recorder
09/06/1994US5345341 Method of manufacturing a replicated magnetic reproducing medium, such as a magnetic-tape cassette provided with a music recording, and magnetic replication head and replication arrangement for use in the method
09/06/1994US5345119 Continuous-time filter tuning with a delay-locked-loop in mass storage systems or the like
09/06/1994US5344706 Magnetic recording medium comprising an underlayer and a cobalt samarium amorphous magnetic layer having a SmCo5 crystalline interface with the underlayer
09/06/1994US5344669 Method of manufacture for an improved magnetoresistive read transducer
09/06/1994CA2022219C Recording/reproducing system using memory functions of digital audio tape recorder (dat) and method thereof
09/06/1994CA2021909C Actuator structure for a magnetic head suspension assembly in a disk drive
09/01/1994WO1994019795A1 Suspension for in-line, offset head mounting
09/01/1994WO1994019794A1 Magnetoresistive magnetic head
09/01/1994WO1994019793A1 Contact magnetic recording disk file with a magnetoresistive read sensor
09/01/1994WO1994019508A1 System for sputtering compositions onto a substrate
09/01/1994WO1994019433A1 Lubricant
09/01/1994WO1994019276A1 Compound-deposited needle-shaped fine particles, method of manufacturing the same, and use of the same
09/01/1994CA2118301A1 Coated acicular fine particulate materials, processes for preparing same and use thereof
08/1994
08/31/1994EP0613148A2 Nonvolatile magnetoresistive storage device
08/31/1994EP0613121A1 Rotating magnetic storage device
08/31/1994EP0613120A2 Magnetoresistance thin film magnetic head and bias characteristics measuring method
08/31/1994EP0613119A2 Magnetoresistive sensor and method for manufacturing the same
08/31/1994EP0613041A1 Camera apparatus for recording data in a film magnetic recording layer
08/31/1994CN1091543A Magnetoresistive device and method having improved barkhausen noise suppression
08/30/1994US5343422 Nonvolatile magnetoresistive storage device using spin valve effect
08/30/1994US5343348 Actuator for displacing a magnetic head
08/30/1994US5343347 Magnetic disk storage module with multiple sets of actuator arms for simultaneous read/write operations at different circumferential locations within the disk stack
08/30/1994US5343345 Magnetic disk storage apparatus with multiple sets of actuator arms for read/write operations at different circumferential locations within the disk stack
08/30/1994US5343344 Connection of transducer leads to a printed circuit board in rotating disk data storage apparatus
08/30/1994US5343343 Air bearing slider with relieved rail ends
08/30/1994US5343342 Magnetic recording and playback system with feedback control of a movable transducer head
08/30/1994US5343341 Method for seeking the center of a recorded data track
08/30/1994US5343340 Digital servo signal demodulation method and apparatus utilizing a partial-response maximum-likelihood (PRML) channel in a disk file
08/30/1994US5343338 Tape drive apparatus
08/30/1994US5343337 Control circuitry for magnetoresistive (MR) tape heads using group select switches and head select multiplexer
08/30/1994US5343336 Magnetic recording reproducing apparatus with time code recording
08/30/1994US5343335 Signal processing system having intersymbol-interference cancelling means and method of same
08/30/1994US5343026 Magnetic card reader/writer with selectable frequencies relative to motor speed for variable recording densities
08/30/1994US5342668 Magnetic recording medium having improved electromagnetic conversion characteristics and durability
08/25/1994DE4405087A1 Method and device for detecting a head position
08/24/1994EP0612061A2 Magnetoresistive read transducer
08/24/1994EP0612060A1 Transducer with improved inductive coupling
08/24/1994EP0611789A1 Biaxially oriented, unidirectionally long polyethylene-2,6-naphthalaenedicarboxylate film
08/24/1994CN2175455Y Double contact type device for repeatly producing sound with automatically turning back the tape
08/24/1994CN1091219A Magnetoresistive sensor with improved microtrack profile for improved servo-positioning precision
08/23/1994US5341386 Viterbi equalizer and recording/reproducing device using the same
08/23/1994US5341378 Data recording system having improved automatic rewrite capability and method of rewriting
08/23/1994US5341263 Apparatus for demagnetizing the magnetic head of a cassette tape recording and/or reproducing device
08/23/1994US5341261 Magnetoresistive sensor having multilayer thin film structure
08/23/1994US5341257 Head cleaning device for magnetic tape cassette apparatus having a rotating head
08/23/1994US5341256 Rotary head adjuster
08/23/1994US5341255 Disc drive head positioning servo system with coherent adjacent track magnetic patterns
08/23/1994US5341248 Magnetic recording/reproducing apparatus having head structure for selectively recording/reproducing either of two kinds of signals containing different amounts of information
08/23/1994US5341118 Multilayer magnetic structure wherein the magnitude of the structure magnetoresistance is a function of nonmagnetic layer thickness
08/23/1994US5340636 Magnetic recording medium
08/23/1994US5340635 Nonclogging, no contamination of calendar rolls
08/23/1994US5339702 Test fixture for air bearing magnetic head suspension assembly
08/23/1994US5339523 Method of machining sleeve bearing
08/18/1994WO1994018773A1 Gain control circuit for synchronous waveform sampling
08/18/1994WO1994018673A1 Light-transmitting high recording density magnetic recording medium having an undercoating layer
08/18/1994WO1994018672A1 High recording density magnetic recording medium having an undercoat layer
08/18/1994WO1994018671A1 Magnetic stripe read/write head
08/18/1994WO1994018670A1 Synchronous read channel
08/18/1994WO1994017934A1 Load adjusting machine for gimbal assemblies
08/18/1994DE4404932A1 Short-representation playback device and method for a video cassette recorder
08/17/1994EP0611208A2 Information storage disc and information recording and reproducing apparatus
08/17/1994EP0611202A1 Magnetooptical reproducing head and apparatus for reproducing magnetically recorded data from multiple tracks
08/17/1994EP0611033A2 A magnetoresistive spin valve sensor and magnetic storage system incorporating such a sensor
08/17/1994EP0610933A1 Camera adapted for films provided with magnetic storage portions
08/17/1994EP0610624A2 A preamplifier circuit for a magneto-resistive head
08/17/1994EP0610494A1 Magnetoresistive integrated circuit sensor with high output voltage swing and temperature compensation
08/17/1994EP0610386A1 In situ use of gelatin in the preparation of uniform ferrite particles
08/17/1994EP0610383A1 Unshielded magnetoresistive head with multiple pairs of sensing elements
08/17/1994EP0513169B1 Photographic element containing thin transparent magnetic recording layer and method for the preparation thereof
08/17/1994EP0417261B1 Magnetoresistant magnetic head for the longitudinal recording and method for making the same
08/17/1994CN1025706C Still/slow circuit for a VCR with two heads
08/16/1994US5339208 Assembly for supporting a magnetic head to float relative to a magnetic disk
08/16/1994US5339207 Servo system for providing increased recording density and improved operation of the AGC circuitry
08/16/1994US5339206 Positioning control method and apparatus of head which is used in magnetic disk apparatus
08/16/1994US5339205 Recording/reproduction apparatus with error detection capability
08/16/1994US5339204 System and method for servowriting a magnetic disk drive
08/16/1994US5339202 Method and apparatus for amplitude compensated write equalization
08/16/1994US5339199 Still video device with selectable successive erasure of audio and/or video tracks
08/16/1994US5339165 Video signal recording/reproducing apparatus