Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
08/1985
08/07/1985EP0150498A2 Perpendicular Magnetic Recording Medium
08/07/1985EP0150393A1 Magnetic recording media
08/07/1985EP0150372A1 Combined write and read magnetic head for a recording medium to be magnetized longitudinally or vertically
08/07/1985EP0150371A1 Thin film magnetic head for a recording medium to be magnetized vertically
08/07/1985EP0150368A1 Combined write and read magnetic head to magnetize vertically a corresponding recording medium
08/07/1985EP0150306A1 Information storage disk transducer position control
08/06/1985US4533967 Multiple leg multichannel magnetic transducer structure and method of manufacturing
08/06/1985US4533965 Magnetic read/write circuit
08/06/1985US4533603 Substrate and thin layer of manganese, aluminum, and copper or alloy thereof
08/06/1985US4533582 Stabilized magnetic recording materials and process for tailoring and stabilizing of magnetic recording materials
08/06/1985US4533566 Electron-beam adhesion-promoting treatment of polyester film base for silicone release liners
08/06/1985US4533565 Method for surface treatment of ferromagnetic fine powder and forming a magnetic recording device
08/06/1985US4532802 Apparatus for analyzing the interface between a recording disk and a read-write head
08/06/1985CA1191608A1 Magnetic recording head array with staggered head arrangement
08/06/1985CA1191606A1 Differential magnetoresistive sensor for vertical recording
08/06/1985CA1191605A1 Magnetic recording apparatus
08/06/1985CA1191601A1 Tracking control devices for video tape recorders
08/06/1985CA1191595A1 Method and apparatus for recording and reproducing an information signal comprised of a video signal and audio signal
08/06/1985CA1191559A1 Circuit for detecting existance of information signal
08/01/1985WO1985003400A1 Rotary head type magnetic image recorder/reproducer
08/01/1985WO1985003244A1 Coating process
08/01/1985WO1985003243A1 Ptfe coating process
07/1985
07/31/1985EP0150005A1 Magnetic storage medium
07/30/1985US4532629 Apparatus for error correction
07/30/1985US4532621 Device and method for recording information on a disk
07/30/1985US4532565 Tape recorder
07/30/1985US4532562 Servo control of seek operation in magnetic disk drive
07/30/1985US4532178 Magnetic recording media comprising a magnetic layer on one side of a support and a non-magnetic tio layer on the other side
07/30/1985US4532172 Support having coating on surface and back sides of binder and powder selected from extenders and white pigments, with finer surface roughness on surface side
07/30/1985US4531990 Method for producing a magnetic tape
07/30/1985CA1191255A1 Embedded servo track following system and method for writing servo tracks
07/30/1985CA1191254A1 Playback system for tv signals recorded on magnetic tape
07/24/1985EP0149509A2 Magnectic head core and process of manufacturing the same
07/24/1985EP0149483A2 Coatings for magnetic recording structures
07/24/1985EP0149281A2 Magnetic head
07/24/1985EP0149257A2 Method of and apparatus for recording video signal associated with photographic image
07/24/1985EP0149015A2 Method and apparatus for copy-protecting magnetic storage media
07/24/1985EP0148999A1 Tape recorder head position controlling device
07/23/1985US4531170 Combination magnetic head
07/23/1985US4531169 Read/write head-positioning apparatus for a magnetic recording disk drive unit
07/23/1985US4531167 Servowriter system for magnetic disc drives
07/23/1985US4531166 Magnetic tape drive with adaptive servo
07/23/1985US4531165 Automatic amplitude equalizer based upon monitoring of channel power loss
07/23/1985CA1190734A1 Magnetic recording medium and composition and method therefor
07/17/1985EP0148634A2 Ferromagnetic alloy particles for magnetic recording media and process for their manufacture
07/17/1985EP0148628A2 Magnetic head core and method for producing the same
07/17/1985EP0148580A1 Cleaning apparatus for a disc drive
07/17/1985EP0148378A2 Magnetic recording and playback apparatus
07/17/1985EP0148306A2 Method for producing a metal alloy strip
07/16/1985US4530022 Apparatus and method for protecting disks in a computer peripheral system
07/16/1985US4530021 Micromotion release of heads from lubricated magnetic disks
07/16/1985US4530020 Self-timed runout correction pattern
07/16/1985US4530019 Servo pattern
07/16/1985US4530016 Magnetic recording and reproducing apparatus
07/16/1985US4530014 Electronic camera
07/16/1985US4530012 Tracking control system for magnetic video recording and/or reproducing apparatus with tracking signal positions staggered with respect to the positions of tracking signals on adjacent tracks
07/16/1985US4529661 Magnetic recording medium
07/16/1985US4529659 Magnetic recording member and process for manufacturing the same
07/16/1985US4529651 Sputtering of polymer coating
07/16/1985US4529649 Magnetic recording medium
07/16/1985US4529524 Process for producing plate-like barium ferrite particles for magnetic recording
07/16/1985CA1190653A1 Digital waveform conditioning circuit
07/16/1985CA1190643A1 Absolute reference embedded servo
07/10/1985EP0148077A2 Method of writing information on a recording medium
07/10/1985EP0148014A2 Magnetic head core and method for producing the same
07/10/1985EP0147993A2 Disk unit
07/10/1985EP0147963A2 Magnetic recording
07/10/1985EP0147918A1 Magnetic-disk accessing circuitry
07/10/1985EP0147773A2 A method of making linearity standard magnetic tape
07/10/1985EP0147746A2 Electron beam irradiation apparatus
07/10/1985EP0147709A2 Process for producing isotropical magnetic-iron oxides containing cobalt and their use
07/10/1985EP0147550A1 Equalization circuits for magnetic recording channels
07/10/1985EP0147436A1 Apparatus for reading magnetically recorded information.
07/09/1985US4528607 Magnetic record/playback head positioning apparatus
07/09/1985US4528605 Rotary magnetic head scanning control system in a magnetic recording and reproducing apparatus
07/09/1985US4528601 Digital signal reproducing apparatus
07/09/1985US4528588 Method and apparatus for marking the information content of an information carrying signal
07/09/1985US4528473 Permanent magnet type step motor
07/09/1985US4528467 Coil for disk file actuator
07/09/1985US4528240 Magnetic recording medium
07/09/1985US4528063 Method for refinishing rigid data storage discs
07/09/1985CA1190318A1 Compensating apparatus for changes in a record medium
07/04/1985WO1985002933A1 Magnetic record medium and apparatus and method for tracking the same
07/03/1985EP0147161A2 Magnetic recording medium having opaque polyesterfilm base
07/03/1985EP0147126A2 Multilayered ferromagnetic amorphous alloy film and magnetic head employing the same
07/03/1985EP0147003A1 Thin-film magnetic read/write head with multiple-layer coil
07/03/1985EP0146897A2 Magnetic recording medium
07/03/1985EP0146861A2 Device with a thin layer magnetic head for perpendicular (vertical) recording
07/03/1985EP0146796A2 Process for the fabrication of thin film magnetic transducer gaps by lift-off
07/03/1985EP0146773A1 Apparatus for recording a digital data
07/03/1985EP0146662A1 Magnetic card reader
07/03/1985EP0146639A1 Method and apparatus for recording digital data signal
07/03/1985EP0146581A1 Inductively-coupled, thin-film m-r head.
07/02/1985US4527212 Magnetic shield and multitrack magnetic head apparatus using same
07/02/1985US4527211 Device for positioning a scanning head in a drive unit for disk records
07/02/1985US4527207 Tape speed control for producing a master tape carrying a digital signal
07/02/1985US4527202 Method and apparatus for recording/reproducing a control signal on and from video signal recordings by an erase head
07/02/1985US4526837 Magnetic recording medium
07/02/1985US4526836 Magnetic recording media comprising a reaction product of a specific type of fluorine resin and a curing polymer material as a binder in the magnetic layer thereof
07/02/1985US4526833 Magnetic recording medium having a perfluoropolyether polymer protective coating