Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
08/1993
08/17/1993US5237476 Thin film tape head assembly
08/17/1993US5237475 Magnetic head for photo-magnetic recording
08/17/1993US5237474 Head cartridge apparatus having head supporting arm partially inserted into disk case through window formed therein
08/17/1993US5237472 Rigid disk drive with dynamic head loading apparatus
08/17/1993US5236791 Containing protective coating
08/17/1993US5236790 Heat treatment in convention oven
08/17/1993US5236783 Superparamagnetic fine particles of iron oxide and magnetic recording media containing said particles
08/17/1993US5236738 Method for making magnetic recording media by kneading, dilution kneading, and dispersing a mixture of inorganic grains, binders, and solvents
08/17/1993US5236735 Heating thin film magnetic circuit before forming protective coating
08/17/1993US5236622 Process for producing a monodispersed glycol suspension of fine inorganic oxide particles having excellent dispersion stability
08/17/1993CA2047563C Integrated magnetic read/write head/flexure/conductor structure
08/17/1993CA2026871C Integrated magnetic read/write head/flexure/conductor structure
08/17/1993CA1321422C Sampled servo code format and system for a disc drive
08/12/1993DE4303427A1 Filter with min. dead space in housing for filtered coating soln. - to minimise coagulation, e.g. for filtering thixotropic magnetic coating soln. for diskette or video tape prodn.
08/11/1993EP0555056A2 Magnetic iron oxide particles, a process for producing the same and a magnetic recording medium
08/11/1993EP0555031A2 Recording and reproducing apparatus
08/11/1993EP0554867A2 Magnetic recording/reproducing apparatus
08/11/1993EP0554855A1 Coating method and apparatus
08/11/1993EP0554654A1 Polyester film
08/11/1993EP0461132B1 Circuit arrangement for reversing a magnetic field
08/11/1993EP0428617A4 Dual deck videocassette recorder system
08/11/1993CN1075227A Antifogging magnetic disc and its production method
08/10/1993US5235683 Method and apparatus for accessing peripheral storages with asychronized individual requests to a host processor
08/10/1993US5235573 Repositioning laser beams in information storage media
08/10/1993US5235485 For cleaning a head of a disc drive unit
08/10/1993US5235484 Low profile magnetic transducer assembly with negative pressure slider
08/10/1993US5235483 Magnetic head having a groove between high and low track density cores
08/10/1993US5235482 Magnetic disk drive incorporating a mechanically damped base
08/10/1993US5235481 Magnetic disk drive having a cartridge with actuator and spindle
08/10/1993US5235479 Digital video tape recorder with tracking central circuit for causing positions of existing recorded track and newly recorded track to coincide during editing
08/10/1993US5235478 Disc drive apparatus with servo tracks offset from data tracks
08/10/1993US5235477 Track position detecting mechanism
08/10/1993US5235476 Apparatus for controlling moving speed of magnetic head
08/10/1993US5235473 Recording medium erasing device
08/10/1993US5234775 Alternating crystalline main layers and amorphous secondary layers of mainly iron; low magnetostriction and coercive force; high permeability
08/10/1993US5234762 Compliant support with mutually adhered web for transfer of information
08/10/1993US5234614 Method for producing magnetic coating composition and magnetic recording medium
08/05/1993WO1993015593A1 Carrier strip head interconnect assembly
08/05/1993WO1993015505A1 Magnetic disk apparatus with improved positioning control of magnetic head
08/05/1993DE4302516A1 Magnetic recording medium having good electromagnetic properties - obtd. by applying lower non-magnetic layer onto non-magnetic layer, and upper magnetic layer onto lower magnetic layer
08/05/1993DE4302255A1 Determining head wear of video recorder - measuring attenuation of recorded signal after each test interval and relating to wear
08/05/1993DE4218420A1 Recording and reproducing method for concentric or parallel track computer disc - using multiple heads in radial carriers permanently positioned above tracks
08/04/1993EP0554078A1 Digital signal recording and reproducing apparatus and digital signal recording and reproducing method
08/04/1993EP0554030A2 Rotary head type reproducing apparatus
08/04/1993EP0553784A2 Azimuth regulating mechanism in floppy disc drive
08/04/1993EP0553551A2 Optical disk apparatus having a reduced size
08/04/1993EP0553434A2 Thin film magnetic head
08/04/1993EP0553390A1 Magnetic disk substrate of titanium
08/04/1993EP0548290A4 Improved reverse rail head suspension
08/04/1993EP0531453A4 Dual deck video cassette recorder with copy prevention
08/03/1993US5233493 Notched arcuate magnet for rotary actuator
08/03/1993US5233492 Flying type composite magnetic head having Mn-Zn ferrite core
08/03/1993US5233487 Functional measurement of data head misregistration
08/03/1993US5233486 Method for correcting track counting errors during seeks in a hard disc drive
08/03/1993US5233483 Magnetic write/read device
08/03/1993US5233482 Thermal asperity compensation for PRML data detection
08/03/1993US5233481 Magnetic recording and reproducing apparatus
08/03/1993US5233478 Apparatus for recording a digital signal composed of different types of data
08/03/1993US5233477 High speed tape duplicating equipment
08/03/1993US5233435 Tape recording system for video cassette tape recorder
08/03/1993US5232791 Magnetic recording medium having a carbon rich coating
08/03/1993US5232750 Method for fabricating magnetic recording medium
08/03/1993US5232617 Process for the preparation of hexaferrites
08/03/1993US5232570 Nitrogen-containing materials for wear protection and friction reduction
08/03/1993US5232566 Underlayer doping in thin film magnetic recording media
08/03/1993US5232503 Apparatus for evaporatively coating objects with a predetermined thickness profile
08/03/1993CA1321021C Magnetic recording and reading head and method for making same
07/1993
07/28/1993EP0552970A1 Rotary-magnetic-head dynamic track following device
07/28/1993EP0552903A2 Data transmitting apparatus and data reproducing apparatus
07/28/1993EP0552890A2 Magnetic sensor
07/28/1993EP0552636A1 Method of manufacturing a recording medium
07/28/1993EP0552611A1 Magnetic recording medium
07/28/1993EP0478666A4 Microfabricated microscope assembly
07/27/1993US5231613 Magneto-optical recording device
07/27/1993US5231557 Magnetic disk apparatus having rotary type actuator and a height reducing return spring
07/27/1993US5231555 Iron-silicon-aluminum alloy, oxide of zinc, cobalt, manganese of nickel
07/27/1993US5231554 Floating magnetic head having low noise level
07/27/1993US5231553 System comprising magnetic tape cassette apparatus and two different types of magnetic tape cassettes playable in such apparatus
07/27/1993US5231550 Track access control system preventing unintentional delay in movement of head in non-adjusted disc device
07/27/1993US5231549 Disk drive apparatus with cam and follower for unloading heads
07/27/1993US5231546 Recording and reproducing apparatus with limited digital copying
07/27/1993US5231543 Digital signal recording/reproducing apparatus for use with digital signals having different transmission rates
07/27/1993US5231542 Method and device for improving bass response in magnetic tape recording
07/27/1993US5231294 Manganese-aluminum and manganese-silicon magnetic films, and magnetic recording medium
07/27/1993US5230964 High density recording; durability, wear and friction resistance
07/27/1993US5230818 Coating compositions for master media for anhysteretic recording
07/27/1993CA1320761C Tracking control apparatus for video tape recorder
07/23/1993WO1993014896A1 Minute acicular particle containing metallic iron, iron carbide and carbon, production thereof, and magnetic coating composition and magnetic recording medium containing the same
07/23/1993CA2106685A1 Minute acicular particle containing metallic iron, iron carbide and carbon, production thereof, and magnetic coating composition and magnetic recording medium containing the same
07/22/1993WO1993014496A1 Method for synchronizing digital audio tape recorders
07/22/1993WO1993014495A1 Magnetic head assembly, its manufacture, and magnetic disc device
07/22/1993WO1993014494A1 Method and apparatus for recording digital audio onto magnetic tape
07/22/1993WO1993013896A1 Magnetic recording media prepared from magnetic particles having an extremely thin, continuous, amorphous, aluminum hydrous oxide coating
07/22/1993WO1993008562A3 Magneto-resistive head
07/22/1993DE4202201C1 Ball bearing support for magnetic disc drives - has inner region contg. bearing lubricant with blocking layer to prevent loss formed on outer race
07/22/1993DE4200920A1 Verfahren zur automatischen qualitaetsueberwachung von audio-video-programmen, welche auf einem magnetischen aufzeichnungstraeger aufgezeichnet sind A method for automatically qualitaetsueberwachung of audio-video programs, which are recorded on a magnetic record
07/22/1993CA2126453A1 Magnetic recording media prepared from magnetic particles having an extremely thin, continuous, amorphous, aluminum hydrous oxide coating
07/21/1993EP0551905A1 Base film of digital compact cassette tape
07/21/1993EP0551879A2 Magnetic head for magnetooptical recording and a method of manufacturing the same
07/21/1993EP0551814A1 Surface observing apparatus and method