Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
04/1987
04/30/1987DE3538223A1 Cleaning card for magnetic card readers
04/29/1987EP0220012A2 Layered magnetic film structure, method of its production and application in a magnetic head
04/29/1987EP0219765A2 Magnetic-recording support with dispersing agents hardenable by radiation
04/29/1987EP0219714A1 Multi-layered ferromagnetic film and method of manufacturing the same
04/29/1987EP0219710A1 Flexible, self-crosslinking binders
04/29/1987CN86105533A Magnetoresistive read transducer
04/28/1987US4661874 Low friction cleaner for magnetic transducer head
04/28/1987US4661873 Head lifter mechanism for hard disk drive
04/28/1987US4661872 Head unit for preventing head oscillation due to disequilibrium between head and recording medium
04/28/1987US4661871 Regulating apparatus and method for use with rotary magnetic recording sheet permitting improved head contact
04/28/1987US4661735 Arrangement for mounting a plurality of motors
04/28/1987US4661729 Voice coil motor magnet assembly
04/28/1987US4661421 Method for preparing a magnetic recording medium
04/28/1987US4661420 Amorphous silicon, germanium or alloy thereof containing hydrogen, carbon, fluorine, nitrogen or oxygen
04/28/1987US4661418 Magnetic recording medium
04/28/1987US4661402 Magnetic recording medium
04/28/1987US4661377 Process for producing a magnetic recording medium having an improved dimensional stability
04/28/1987US4661216 Electrodepositing CoNiFe alloys for thin film heads
04/28/1987CA1221165A1 Perpendicular magnetic recording medium and method for producing the same
04/28/1987CA1221164A1 Method and apparatus for hydrodynamic magnetic recording
04/23/1987WO1987002498A1 Apparatus and method for damping head positioners for disk drives
04/23/1987WO1987002497A1 Transducer positioning mechanism
04/23/1987DE3635424A1 Magnetic recording medium having a rear coating of carbon black in a vinyl alcohol/vinyl chloride resin
04/23/1987DE3635423A1 Magnetic recording medium having an improved magnetic recording layer comprising a magnetic powder dispersed in a vinyl alcohol/vinyl chloride resin
04/23/1987DE3537620A1 Magnetic recording carrier containing radiation-curable dispersants
04/22/1987EP0219370A1 Process for producing a horizontal buried magnetic head, and magnetic head produced by this process
04/22/1987EP0219330A2 Nonabrasive magnetic recording tape
04/22/1987EP0219303A2 Tracking control apparatus
04/22/1987EP0219222A2 Multi-head transducer assembly for helical scan video tape recorders
04/22/1987EP0219116A2 Positioning device for a read/write head
04/22/1987EP0219097A2 Vinyl chloride resins and compositions incorporating such resins
04/22/1987EP0219037A2 Waveform processing circuit
04/22/1987EP0218985A2 Assembly of transducer and support therefor
04/22/1987EP0218814A1 Differential twin track vertical read/write magnetic head structure
04/22/1987EP0218811A1 Magnetic head slider assembly
04/22/1987EP0218591A1 Encoder output phase selection system for magnetic disk memory
04/22/1987CN85107100A Method and apparatus for reproducing signals
04/21/1987US4660119 Flexible magnetic disk sheet
04/21/1987US4660115 Video tape cassette with internal tape erasing means
04/21/1987US4660114 High recording density, workability
04/21/1987US4660113 Magnetoresistive thin film head
04/21/1987US4660112 Feed device for magnetic head
04/21/1987US4660111 Pad lifting mechanism of a floppy disk device
04/21/1987US4660108 Automatic tracking apparatus
04/21/1987US4660106 Data transducer position control system for rotating disk data storage equipment
04/21/1987US4660104 Method for recording and/or reproducing video and audio signals on a magnetic tape and a rotary cylinder arrangement therefor
04/21/1987US4660103 Recording and reproducing digital audio signals formed into groups of varying lengths
04/21/1987US4659633 Improved durability
04/21/1987US4659627 Magnetic recording medium with lubricant
04/21/1987US4659626 Magnetic recording medium
04/21/1987US4659606 Substrate members for recording disks and process for producing same
04/21/1987US4659605 Electroless deposition magnetic recording media process and products produced thereby
04/21/1987US4659534 Free of folds in longitudinal direction; pet and copolymers
04/21/1987CA1220858A1 Magnetic transducer head utilizing magnetoresistance effect
04/21/1987CA1220857A1 Magnetic-tape-cassette apparatus and magnetic-head unit for use in such apparatus
04/21/1987CA1220855A1 Method for verifying servo data
04/21/1987CA1220854A1 System for reproducing information signals on a magnetic tape
04/16/1987DE3634692A1 Magnetic disc
04/16/1987DE3633590A1 Magnetic disc and process for its production
04/16/1987DE3536116A1 Process for stabilising acicular ferromagnetic chromium dioxide
04/15/1987EP0218532A1 Thermo-magnetic recording head and its production process
04/15/1987EP0218445A2 Thin film magnetic heads
04/15/1987EP0218234A2 Process for stabilizing needle-shaped ferromagnetic chromium dioxide
04/15/1987EP0217894A1 Data carrier tape with transfer strip; also a process and a device for its manufacture
04/15/1987CN85107431A Magnetic tape cassette with remaining tape indicator
04/14/1987US4658388 Optical recording medium which includes a corrosion resistant film of a mixture of a carbide and a nitride
04/14/1987US4658317 Flexible magnetic disk write protect device
04/14/1987US4658316 Head supporting structure
04/14/1987US4658315 Magnetic head mounting device of magnetic recording apparatus
04/14/1987US4658314 Floating type magnetic head
04/14/1987US4658313 Magnetic shield for rotary actuator in a magnetic disc device
04/14/1987US4658308 Method and apparatus for retracting head and braking motor of a disc drive device
04/14/1987US4658148 Inspection method for magnetic head utilizing the Kerr effect
04/14/1987US4657824 Vertical magnetic recording medium with an intermetallic compound nucleating layer
04/14/1987US4657819 Flexible magnetic recording medium comprising an underlying film having reduced in-plane magnetic anisotropy under a surface film having perpendicular magnetic anisotropy
04/14/1987US4657817 Magnetic recording material
04/14/1987US4657816 Ferromagnetic recording materials
04/14/1987US4657814 Magnetic recording medium
04/14/1987US4657813 Magnetic recording medium
04/14/1987US4657812 Cobalt-carbon alloy
04/14/1987US4657782 Coating a substrate with ferric acid and rare earths salts, thermally decomposing, crystallization
04/14/1987US4657687 Perfluoropolyethers
04/14/1987US4657583 Thermal aging alloy to give magnetic precipitate in matrix, then dissolving matrix
04/14/1987US4656963 Method and apparatus for forming an extremely thin film on the surface of an object
04/14/1987US4656790 Burnishing method and apparatus for magnetic disk
04/14/1987CA1220549A1 Magnetic tachometer for disk drives
04/14/1987CA1220548A1 Method and apparatus for recording a digital information signal
04/14/1987CA1220547A1 Method and apparatus for authenticating memory disk
04/09/1987WO1987002173A1 Compositions of particulate magnetic oxides with a structure of the lacunar spinel type, preparation and application thereof
04/09/1987WO1987002172A1 Polyester film with smooth and highly adhesive surface and method of making same
04/09/1987WO1987002171A1 Rotary head assembly
04/09/1987WO1987002170A1 Magnetic head
04/09/1987WO1987002033A1 Particulate compositions of ferromagnetic metal oxalates in the form of submicronic needle shaped particles, preparation and application thereof
04/09/1987DE3535671A1 Magnetkopf Magnetic head
04/08/1987EP0217676A2 Cooling system for electronic circuit device
04/08/1987EP0217410A2 Phosphorylated reaction products and compositions incorporating such products
04/08/1987EP0217352A2 Process for the improvement of ferromagnetic chromium dioxide
04/08/1987EP0217273A1 Combined write/read head for a magnetic layer memory, and process for its production
04/08/1987EP0217096A2 Eraseable self biasing thermal magneto-optic medium
04/08/1987EP0217052A1 Glass-like carbon material method for manufacturing the same and slider part for recording medium