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)
11/1985
11/13/1985EP0160877A2 Process for producing a powder of fine ferrite particles containing cobalt
11/13/1985EP0160793A1 Optical tool for aligning transducer head assemblies
11/13/1985EP0160714A1 Device for the track following of rotating magnetic heads
11/12/1985US4553223 Static disturbance signal recording system having detachable programming terminal & programmable fixed part with selectively powered buffer memory
11/12/1985US4553184 Magnetic head slider
11/12/1985US4553181 Disk drive positioning system providing fault-free protection against endstop head crashes by use of a passive network in the actuator driving signal path
11/12/1985US4553179 Automatic recording bias current setting apparatus
11/12/1985US4553177 Method and apparatus for recording data
11/12/1985US4552820 Disc media
11/12/1985US4552808 Magnetic recording material using plate-shaped ferromagnetic particles
11/12/1985US4552807 Magnetic recording medium
11/12/1985US4552799 Acid derivative lubricants
11/12/1985US4552798 Magnetic recording medium
11/07/1985WO1985004979A1 Apparatus for recording data signals
11/07/1985EP0108060A4 Sector servo seek control.
11/06/1985EP0160549A2 Circuit for producing a video combine from multiple video images
11/06/1985EP0160496A2 Magnetic iron oxide particles
11/06/1985EP0160447A2 Disc drive linear actuator
11/06/1985EP0160137A1 Recording member having a variable thickness recording layer
11/05/1985US4551840 Digital data duplication apparatus
11/05/1985US4551782 Method and apparatus for degaussing magnetic storage media
11/05/1985US4551778 Magnetic recording media and process of producing them
11/05/1985US4551777 Tracking servo system for magnetic recording and reproducing apparatus using flexible magnetic disk
11/05/1985US4551776 Automatic reference adjustment for position error signal on disk file servo system
11/05/1985US4551772 Write drive with current mirrors which reduce feed-through
11/05/1985US4551771 Method and apparatus for recording digital information in alternate recording tracks
11/05/1985US4551769 Picture image processing magnetic disc controlling method and apparatus therefor
11/05/1985US4551386 Carbon black of specific particle size
11/05/1985US4551359 Thin films
11/05/1985US4551355 High speed coating process for magnetic disks
11/05/1985US4551327 Process for producing cobalt-and ferrous iron-containing ferromagnetic iron oxides
11/05/1985US4551260 Wet process of preparing fine particles of ferrite of magnetoplumbite structure
11/05/1985US4550492 Method of manufacturing a multitrack magnetic head
10/1985
10/30/1985EP0159841A2 Method and apparatus for positioning transducers by digital conversion of analog signals
10/30/1985EP0159668A2 Apparatus for positioning magnetic head
10/29/1985US4550353 Thin-film magnetic head and method for fabricating the same
10/29/1985US4550352 Head adjusting device
10/29/1985US4550351 Adaptive automatic scan tracking system
10/29/1985US4550347 Method for recording information on a recording disc
10/29/1985US4550346 Magneto-optic information recording system
10/29/1985US4550345 Magnetic video pilot signal recording/reproducing system
10/29/1985US4550062 Magnetic recording medium
10/29/1985US4550054 Magnetic recording medium
10/29/1985US4550049 Laminated film and magnetic recording medium made therewith
10/29/1985CA1196099A1 Device for rapidly moving an optical pick-up device in an optical reproducing apparatus to a desired position on a record disc
10/29/1985CA1196093A1 Integrated magnetostrictive-piezoresistive magnetic recording playback head
10/23/1985EP0159177A2 Disc separating and feeding apparatus for disc copying machine
10/23/1985EP0159086A1 Multiple gap magnetic reading head
10/23/1985EP0159039A2 Magnetic recording and reproducing system with composite magnetic head
10/23/1985EP0159028A2 Magnetic thin film
10/23/1985EP0159027A2 Magnetic thin film
10/23/1985EP0158961A2 Substrate film for a magnetic information medium and their production
10/23/1985EP0158960A2 Substrate film for a magnetic information medium and their production
10/22/1985US4549239 Head carriage for use in a magnetic recording machine
10/22/1985US4549238 Removing titanium carbide from surface
10/22/1985US4549237 Tape machine
10/22/1985US4549236 Information recording device for video and sound
10/22/1985US4549235 Apparatus for reproducing video signals
10/22/1985US4549234 Method and apparatus for tracking control
10/22/1985US4549232 For a disk file
10/22/1985US4549230 Redundantly and asynchronously recording an information signal
10/22/1985US4549227 Method and apparatus for recording a digital information signal in parallel tracks on a record medium without guard bands between at least some adjacent tracks
10/22/1985US4549226 Eliminating the low-frequency chrominance signal for tracking in a video tape recorder
10/22/1985US4548873 Magnetic recording media with oxyfatty acid lubricant
10/22/1985US4548871 Cobalt thin film
10/22/1985US4548864 Magnetic recording medium having an organic metal underlayer
10/22/1985US4548855 Polyester film for magnetic recording medium
10/22/1985US4548833 Method for preparing a magnetic recording medium
10/22/1985US4548801 Plate-like barium ferrite particles for use in magnetic recording and process for producing the same
10/22/1985US4548772 High frequency dielectric heating
10/22/1985US4548682 Process of producing magnetic recording media
10/22/1985CA1195773A1 Magnetic erasing head
10/22/1985CA1195772A1 Cassette for cleaning driving and recording elements of a tape recorder
10/16/1985EP0158406A1 Dispersion of magnetic particles
10/16/1985EP0158373A1 Method and apparatus for recording and/or reproducing signals on/from a record carrier in the form of a tape
10/16/1985EP0158338A2 Perpendicular magnetic recording medium
10/16/1985EP0158240A2 Process for preparing isotrope magnetic cobalt containing iron oxides
10/16/1985EP0158113A1 Use of a polymer for optical disks
10/15/1985US4547824 Dual biasing for integrated inductive MR head
10/15/1985US4547822 Head positioning servo for disk drives
10/15/1985US4547821 Head support and positioning assembly for record/playback device
10/15/1985US4547819 For use with a magnetic pickup
10/15/1985US4547818 Circuit arrangement for the recording of data on a magnetic recording carrier
10/15/1985US4547817 High frequency magnetic recording method
10/15/1985US4547534 Dispersing magnetic and hard particles in slurry with resin binderand surfactant
10/15/1985US4547425 Magnetic recording media
10/15/1985US4547419 Magnetic recording medium
10/15/1985US4547398 Film containing cobalt and chromium; axis of easy magnetization normal to surface
10/15/1985US4547393 Method for preparing a magnetic recording medium
10/15/1985US4546725 Apparatus for manufacturing magnetic recording media
10/15/1985US4546541 Method of attaching electrical conductors to thin film magnetic transducer
10/15/1985CA1195423A1 Magnetic tape recording and reproducing arrangements
10/15/1985CA1195114A1 Heat-sensitive magnetic transfer element
10/09/1985EP0157664A1 Magnetooptic recording medium
10/09/1985EP0157588A2 Apparatus for writing on and/or reading from magnetic discs
10/09/1985EP0157498A1 Multi-head transducer assembly for helical scan video tape recorders
10/09/1985EP0157411A2 Magnetic recording medium
10/09/1985EP0157387A1 Signal transducing head moving apparatus
10/09/1985EP0157227A2 Interferometer
10/09/1985EP0157017A1 Arrangement of supports for the magnetic heads of a magnetic disc drive unit
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