Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
05/1994
05/18/1994EP0597526A2 Method of manufacturing a magnetic head, and magnetic head manufactured by means of said method
05/18/1994EP0597480A1 Magnetic recording medium and method for producing the same
05/18/1994EP0597293A1 Flexible magnetic recording carrier with back layer
05/18/1994EP0597189A2 Low profile rotary actuator structure for a hard disk drive
05/18/1994EP0597171A1 Improved system for read head positioning
05/18/1994EP0515438B1 Process for converting an analog voltage to a digital value
05/18/1994CN2165508Y Image and character display vocal accompaniment radio recorder
05/18/1994CN1024602C Solid state scanning transducer that utilizes low flux densities
05/17/1994US5313446 Disc drive device having a head carriage
05/17/1994US5313444 External magnetic field generation apparatus capable of light intensity modulation and magnetic field modulation
05/17/1994US5313357 Magnetic storage device and manufacturing method thereof
05/17/1994US5313356 Thin film magnetic head having a magnetic/non-magnetic laminate structure with the non-magnetic material being a metal or an insulating nitride
05/17/1994US5313355 Flexure mounting system for hard disc drives
05/17/1994US5313354 Disc drive latch housing having improved vibration dampening
05/17/1994US5313353 Magnetic head suspension united support arm with ribbed cut-out
05/17/1994US5313352 Magnetic disk slider having piezo-electric vibration elements
05/17/1994US5313347 Rotating magnetic head for a magnetic recording reproduction system
05/17/1994US5313346 Tracking error detection system having at least two magnetic heads with opposite azimuths and circuitry for detecting tracking error by determining a phase difference of output signals from all circuits based on signals produced by the magnetic heads
05/17/1994US5313342 Analog/digital compatible reproducing system
05/17/1994US5313341 Device for processing file data with erasing identification data
05/17/1994US5313340 Read/write controlling apparatus for adjusting the data length of a magnetic disk
05/17/1994US5313339 Apparatus using a rotary head for recording digital video and audio signals at double speed
05/17/1994US5313237 Camera apparatus for recording data in a film magnetic recording layer
05/17/1994US5313186 Sensor of weak magnetic fields, with magnetoresistive effect
05/17/1994US5313124 Return plate for a voice coil motor in a disk drive
05/17/1994US5312644 Method of making a magnetoresistive head with integrated bias and magnetic shield layer
05/17/1994US5312532 Multi-compartment eletroplating system
05/17/1994US5312503 Laminated magnetic core and method of manufacturing same
05/17/1994CA2103194A1 Video head cleaner
05/17/1994CA2018262C Lithographic technique using laser scanning for fabrication of electronic components and the like
05/11/1994EP0596689A2 Magnetoresistive Sensor
05/11/1994EP0596626A2 Digital signal reproducing method and apparatus
05/11/1994EP0596448A2 Soft-magnetic multilayer thin film for use in a thin-film magnetic head and a method of manufacturing the same
05/11/1994DE4328766A1 Double coated magnetic recording material, e.g. video tape - with specified creep values, giving smooth surface and high electrical conversion over wide recording wavelength range
05/11/1994CN1086625A Disk drive servo system
05/11/1994CN1086624A 磁头 Magnetic head
05/10/1994US5311390 Apparatus for precise positioning of a tape head and programming thereof
05/10/1994US5311387 Three-pole magnetic recording head with high readback resolution
05/10/1994US5311386 Transducer with improved inductive coupling
05/10/1994US5311385 Magnetoresistive head with integrated bias and magnetic shield layer
05/10/1994US5311384 Wire tubing catching member is integral with the gimbal
05/10/1994US5311381 Method and apparatus of automatically tracking a recording medium
05/10/1994US5311380 Magnetic head positioning device and method
05/10/1994US5311379 Method and system for positioning head on target cylinder of disk
05/10/1994US5311378 Dual very-high density magnetic head assembly with optical servo positioning for very high density floppy disk recording and high density format compatability
05/10/1994US5311377 Driver device of magnetic heads for magnetic record and reproduction
05/10/1994US5311375 Recording head arrangement for video signal recording and/or reproducing device
05/10/1994US5311374 Recording/reproducing system using memory functions of digital audio tape recorder (DAT) and method thereof
05/10/1994US5311373 Video tape recorder
05/10/1994US5311371 Magnetic tape data recovery method
05/10/1994US5309628 Assembling position adjusting mechanism of a spindle motor for a magnetic disk apparatus
05/10/1994US5309624 Method of making a disc recording and/or reproducing apparatus
05/10/1994CA2002303C System and a process for recording cartographic information on a videodisk
05/04/1994EP0595633A2 Magnetic recording/reproducing apparatus
05/04/1994EP0595628A2 Magnetic recording and/or reproducing apparatus
05/04/1994EP0595564A2 Magnetic recording medium
05/04/1994EP0595513A2 Negative pressure air bearing slider
05/04/1994EP0595494A1 Magnetic recording medium and a method for its manufacture
05/04/1994EP0595411A2 Arrangement for recording a digital signal in a track on a magnetic record carrier
05/04/1994EP0595350A2 Reproducing circuit for a magnetic head
05/04/1994EP0595266A2 Reproducing circuit for a magnetoresistive head
05/04/1994EP0595092A1 Floating magnetic head
05/04/1994CN2164096Y Permanent information magnetic card
05/04/1994CN2164095Y Pulse eraser
05/04/1994CN1024437C Multi-functional film and sound synchronous record displaying system
05/03/1994US5309307 Timer controlled device for cleaning a moving head and/or a drum of a playback and/or recording unit
05/03/1994US5309306 Complex magnetic head
05/03/1994US5309305 Dual element magnetoresistive sensing head
05/03/1994US5309304 Magnetoresistive transducer conductor configuration
05/03/1994US5309303 Subambient pressure air bearing slider for disk drive
05/03/1994US5309299 Method and system for position error signal generation using auto correlation
05/03/1994US5309298 Suppression of magnetic instability in inductive recording heads
05/03/1994US5309296 System for eliminating noise arising from difference in polarity of magnetization by tunnel erase heads
05/03/1994US5309295 Method and apparatus for biasing a magneto-resistive head
05/03/1994US5309294 Method and circuitry to provide true voltage bias to a magnetoresistive head
05/03/1994US5309291 Circuit for compensating the errors occurring when changing the playing back speed of a double azimuth 4-head VTR
05/03/1994US5307703 Head adjusting device
05/03/1994US5307593 Method of texturing rigid memory disks using an abrasive article
05/03/1994CA2054580C Magnetoresistive sensor based on the spin valve effect
05/03/1994CA1329261C Head assembly for rotating storage device
04/1994
04/28/1994WO1994009491A1 Magnetic recording medium and production method thereof
04/28/1994WO1994009488A1 Cleaning card
04/28/1994WO1994005007A3 Bidirectional thin-film magnetoresistive tape head assembly
04/28/1994DE4235674A1 Chamber for transporting components under vacuum - with a second transport mechanism with elements movable axially and radially relative to the rotary first transport mechanism.
04/27/1994EP0594522A1 Disk drive servo system
04/27/1994EP0594471A2 Magnetic read-out device
04/27/1994EP0594439A2 Magnetic recording medium
04/27/1994EP0594438A1 Data recorder having self-diagnostic function using magnetic tape
04/27/1994EP0594407A2 Recording signal control apparatus capable of optimizing recording conditions for magnetic recording medium
04/27/1994EP0594252A1 A device for applying a lacquer coating to a disc-shaped registration carrier
04/27/1994EP0594243A2 Magnetic field sensor
04/27/1994EP0594193A2 An information recording and reproducing device and a method using the same
04/27/1994EP0594141A2 Information reproducing apparatus
04/27/1994EP0594138A2 Multi-track magnetic signal reproducing apparatus
04/27/1994EP0594082A1 Magnetic recording medium and its manufacturing method
04/27/1994EP0593773A1 Biaxially oriented base film and floppy disk for high-density magnetic recording made therefrom
04/27/1994EP0593644A1 Magnetic recording materials.
04/27/1994CN1086036A Medium for audio and video recording
04/26/1994US5307330 Settling monitor system for a following servo
04/26/1994US5307329 Magneto-optical recording head comprising a step-down transformer