Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
07/1991
07/03/1991EP0435315A2 Magnetic recording medium and process of manufacturing the same
07/03/1991EP0435264A1 Binders for powder and magnetic recording media using same
07/03/1991EP0435255A1 Magnetic disk apparatus
07/03/1991EP0435159A1 Longitudinal magnetic recording medium
07/03/1991EP0435080A1 Antistatic highly adhesive film, process for producing said film, and magnetic card using said film
07/03/1991EP0435054A1 Process and circuit arrangement for recording and for determining the existence and the reproduction of information signals
07/03/1991EP0435002A1 Sealing glass and magnetic head comprising the same
07/03/1991EP0434687A1 Rotating positioning device for magnetic disk memories
07/03/1991EP0237561A4 Audio and video digital recording and playback system
07/03/1991CN2080210U Endless speed measuring and cleaning tape
07/03/1991CN1052743A System for recording/reproducing signals on/from magnetic tape in cassettes
07/03/1991CN1052702A High magnetic conductivity wear-resisting alloy
07/02/1991US5029317 Protection layers
07/02/1991US5029313 Photofinishing apparatus with film information exchange system using dedicated magnetic tracks on film
07/02/1991US5029032 Amorphous alloy thin film, between first core and nonmagnetic spacer
07/02/1991US5029031 Composite type magnetic head assembly with simplified azimuth angle adjustment
07/02/1991US5029030 Rotary actuator system with zero skew angle variation
07/02/1991US5029029 Linear actuator with reduced wear guide way
07/02/1991US5029021 Video recording/reproducing apparatus and method of editing video tape
07/02/1991US5028940 Camera apparatus for magnetically recording on film
07/02/1991US5028683 Electron-beam curable polyurethane compositions; and method
07/02/1991US5028676 Resin for magnetic recording media from vinyl chloride with quanternary and phosphoric monomers
07/02/1991US5028497 Magnetic recording medium utilizing a fungicide
07/02/1991US5028496 Magnetic coated recording medium and method of manfacturing the same
07/02/1991US5028483 Magnetic recording medium comprising acicular dendrite free iron oxide magnetic pigment particles
07/02/1991US5028450 Method and apparatus for coating a thin film web by use of a plurality of pads facing an orifice
07/02/1991US5028305 Terbium-cobalt-iron-chromium alloy containing oxygen
07/02/1991US5028278 Forming silicon compound and transition metal compound layers on iron oxide particle, reduction to the metal, magnetic recording media
07/02/1991US5028269 Co-containing magnetic pigments, processes for the production thereof and the use thereof
07/02/1991US5028242 Lapping member and lapping tape
07/02/1991CA1285651C Restoring and clocking pulse width modulated data
06/1991
06/29/1991WO1991010229A1 Method and apparatus for cleaning portions of a video cassette recorder
06/29/1991CA2072578A1 Method and apparatus for cleaning portions of a video cassette recorder
06/27/1991WO1991009375A1 Integrated vehicle positioning and navigation system, apparatus and method
06/26/1991EP0434547A1 Multitrack magnetic read head
06/26/1991EP0434261A1 Apparatus for supporting a conductor sleeve in a head gimbal assembly
06/26/1991EP0434230A2 Optical recording medium and method of recording and reproducing information thereon
06/26/1991EP0434134A1 System for recording/reproducing signals on/from magnetic tape in cassettes
06/26/1991EP0433896A2 Low-noise preamplifier stage, in particular for magnetic heads
06/26/1991EP0433894A1 Process for producing magnetic metal powder for magnetic recording
06/26/1991EP0433838A2 Process for the preparation of stabilized chromium dioxide and magnetic recording medium containing this material
06/26/1991EP0174376B1 Heat-resistant film or sheet
06/26/1991CN1052567A 磁盘记录系统 Disk recording system
06/25/1991US5027334 Magneto-optical disk device with movable coil
06/25/1991US5027248 Magnetic recording and reproducing apparatus with a tape guide
06/25/1991US5027247 Film magnetic head for high frequency recording
06/25/1991US5027246 Thin film magnetic head and a method for manufacturing thereof
06/25/1991US5027245 Magnetic head for multi-track recording having read and write transducers formed by thin-film technology
06/25/1991US5027244 Read/write head assembly with erase gaps of meandering shape
06/25/1991US5027243 Self-initialization of short magnetoresistive sensors into a single domain state
06/25/1991US5027242 Magnetic disk apparatus having at least six magnetic disks
06/25/1991US5027241 Data head load beam for height compacted, low power fixed head and disk assembly
06/25/1991US5027240 Disk head assembly load beam
06/25/1991US5027239 Routing a sleeve and conductors in a head-gimbal assembly
06/25/1991US5027238 Floating type magnetic head with flexure cutout
06/25/1991US5027235 Method for controlling a dynamic tracking head of a digital video tape recorder
06/25/1991US5027233 Method for determining servo position data in a disk drive
06/25/1991US5027229 Magnetic recording apparatus and magnetic recording/reproducing apparatus
06/25/1991US5027228 Analog type magnetic recording and reproducing device with digital input/output coupling
06/25/1991US5027223 Electronic still camera
06/25/1991US5026614 Used for high frequency and high density recording heads
06/25/1991US5026605 With copper or manganese compound
06/25/1991US5026598 Magnetic recording medium
06/25/1991US5026577 Magnetic recording medium lubricated with a cholesteric liquid crystal
06/25/1991US5026470 Sputtering apparatus
06/20/1991DE4039852A1 Magnetic disc drive system - has disc stack and thin film magnetic heads to provide large storage capacity
06/20/1991DE4039841A1 Magnetic recording method using QPSK modulation operation - superimposing processed digital audio signal onto analogue components
06/20/1991DE4033095A1 System for recording-reproducing signals on-from magnetic tape
06/19/1991EP0433165A1 Magnetic disc recording apparatus and magnetic disc playback apparatus
06/19/1991EP0433059A2 Disc drive apparatus with tracking servomechanism
06/19/1991EP0433021A2 Floating type magnetic head device
06/19/1991EP0432953A2 A system for sensing and amplifying magnetic field signals
06/19/1991EP0432922A2 An optical apparatus for electrically inter-coupling rotating and stationary devices
06/19/1991EP0432890A2 Magnetoresistive sensor
06/19/1991EP0432877A2 Rotary head actuator for a magnetic disk drive data storage device
06/19/1991EP0432869A2 Head core slider for rigid magnetic disk drive and method of producing the same
06/19/1991EP0432733A2 Flying head slider assembly
06/19/1991EP0432725A2 Biaxially oriented polyester film
06/19/1991EP0432724A1 Biaxially oriented polyester film
06/19/1991EP0432536A2 Magnetic recording medium and method for making it
06/19/1991EP0432387A1 Access authorising or shopping magnetic card with additional optical stripe
06/19/1991CN2079343U Recording letter
06/19/1991CN1052389A Apparatus for demagnetizing magnetic head
06/19/1991CN1052388A Solid state scanning transducer that utilizes low flux densities
06/19/1991CN1012923B Tape recorder
06/19/1991CA2032364A1 System for recording/reproducing signals on/from magnetic tape in cassettes
06/18/1991US5025343 Ferrite cores bonded together, non-magnetic layers interposed between them
06/18/1991US5025342 Thin-film magnetic head device for recording and reproducing
06/18/1991US5025341 Thermo-magnetic recording head
06/18/1991US5025336 Disk drive apparatus
06/18/1991US5025335 Architecture for 21/2 inch diameter single disk drive
06/18/1991US5025329 Electronically controlled magnetic tape editing device
06/18/1991US5025147 Laser light
06/18/1991US5024903 Magnetic recording medium having a magnetic layer of a quaternary alloy
06/18/1991US5024892 Magnetic recording medium having a binder comprising a copolymer which includes a vinyl compound having a dialkylaminoalkyl group
06/18/1991US5024885 Floppy disk having ferromagnetic particles on a nonmagnetic support; durability
06/18/1991US5024854 Partial oxidation of iron, cobalt, nickel, then vapor deposition of mixed metal and oxide particles at room temperature
06/18/1991US5023991 Electrical guide for tight tolerance machining
06/18/1991CA1285067C Carriage latch for a disc drive
06/18/1991CA1284989C Inner perfluoropolyethereal lubricants for magnetic recording media