Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
08/1987
08/12/1987EP0231739A2 Voice coil motor magnet assembly
08/12/1987EP0231625A1 Taper-flat slider
08/12/1987CN87100502A Thin film magnetic head and method of manufacturing thereof
08/11/1987US4686596 Recording head core yoke and method of manufacture
08/11/1987US4686595 Apparatus for repositioning a transducer in the absence of electrical current to a drive system
08/11/1987US4686592 Disk drive assembly
08/11/1987US4686590 Apparatus for positioning a magnetic head
08/11/1987US4686589 Recording and reproducing apparatus having an automatic tracking control system using multiple pilot signals
08/11/1987US4686588 Azimuth adjustment apparatus for a magnetic head
08/11/1987US4686585 VTR having automatic carrier detection
08/11/1987US4686584 Video signal reproduction apparatus and method having noise reduction for fast video reproduction
08/11/1987US4686563 Apparatus and method for locating dropouts
08/11/1987US4686472 Magnetic sensor having closely spaced and electrically parallel magnetoresistive layers of different widths
08/11/1987US4686470 Magnetic disk for measuring the azimuth of a transducer head
08/11/1987US4686151 Substrate material for magnetic recording media
08/11/1987US4686149 Corona discharge treatment, coating with hydrophobic polymer, and irradiation
08/11/1987US4686147 Silicone containing polyimides insulation layer
08/11/1987US4686146 Radiation-cured recording composition with bi-part lube
08/11/1987US4686145 Magnetic recording medium, a process for preparing a magnetic recording medium and a binder composition therefor
08/11/1987US4686142 Process for the production of iron oxides epitaxially coated with cobalt the coated oxides and their cue
08/11/1987US4686139 Binder: resin and diphenyl methane diisocyanate hardening agent; high sensitivity
08/06/1987DE3603431A1 Process for preparing acicular (needle-shaped) ferromagnetic metal particles consisting essentially of iron
08/05/1987EP0231128A2 Plate-like barium ferrite particles and process for producing the same
08/05/1987EP0231103A2 A head positioning system
08/05/1987EP0231095A2 Oriented Polyester Film
08/05/1987EP0230911A2 Magnetic recording medium
08/05/1987EP0230831A1 Product for the instantaneous use as a thermal protection or dissipation screen
08/05/1987EP0230566A2 Format patterning method for magnetic recording media
08/04/1987US4685015 Cleaner cartridge, in particular for cleaning audio and video tape recorders and players
08/04/1987US4685014 Production method of thin film magnetic head
08/04/1987US4685013 Magnetic tape head alignment system
08/04/1987US4685012 Magnetic head with anisotropy in plane of core ports
08/04/1987US4685010 Locking and ejecting device for a recording and reproducing apparatus for magnetic discs
08/04/1987US4685007 Disk drive with track zero location system
08/04/1987US4685005 Two-module-read, read-after-write, bi-directional tape drive
08/04/1987US4685004 Rotary head type PCM recording and reproduction method and system
08/04/1987US4684793 Device for acquiring, storing and evaluating the data of a checking process
08/04/1987US4684572 Magnetic recording medium
08/04/1987US4684547 Format patterning method for magnetic recording media
08/04/1987US4684546 Method of making a magnetic recording medium
08/04/1987US4684454 Sputtering process for making magneto optic alloy
08/04/1987US4684438 Process for producing a coil for a magnetic recording head
07/1987
07/30/1987DE3602394A1 Process for preparing oxide-free metal powder
07/29/1987EP0230190A1 High density electrical connector and its use in a magnetic recording device with rotary heads
07/29/1987EP0230073A1 Magnetic head for use in perpendicular registration
07/29/1987EP0230034A2 Perpendicular magnetic recording medium
07/29/1987EP0229996A2 System for recording, storing and reading information signals on a record medium
07/29/1987EP0229925A2 Recorded data reproducing apparatus
07/29/1987EP0229891A2 Head positioning system for floppy disk drives
07/28/1987USRE32464 Thin film recording and method of making
07/28/1987US4683511 Head and guide cleaning device for video tape recorder
07/28/1987US4683509 High efficiency magnetic erase head
07/28/1987US4683508 Magneto-resistive head with reduced thermal noise
07/28/1987US4683507 Fixed/adjustable head mount
07/28/1987US4683504 Apparatus for recording and reading binary information on a magnetic disc
07/28/1987US4683503 Information signal reproducing apparatus having means for discriminating a track pitch and selecting the reproduction mode speed
07/28/1987US4683280 Radiation curable composition
07/28/1987US4683167 Cores, cobaltous hydroxide-ferrous hydroxide coating, zinc ion
07/28/1987US4683012 Magnetic thin film
07/22/1987EP0229732A2 Recording and/or reproducing apparatus for longitudinal recording
07/22/1987EP0229621A2 Magnetic head device for magnetic disc
07/22/1987EP0229395A2 Optical magnetic recording and reproducing method and apparatus
07/22/1987EP0229346A1 Polyethylene naphthalate film for high-density magnetic recording media
07/22/1987EP0229292A1 Optical-magnetic recording medium
07/22/1987EP0229280A2 Planar linear pulse motor
07/22/1987EP0229255A2 Polyethylene naphthalate film
07/21/1987US4682257 Micro floppy disc head cleaner
07/21/1987US4682256 Method of manufacturing a composite type magnetic head
07/21/1987US4682255 Actuator arm bearing preload arrangement for a rotary disc drive
07/21/1987US4682254 Gimbal spring supported magnetic recording head
07/21/1987US4682253 Servo positioning system for disk drive system
07/21/1987US4682248 Audio and video digital recording and playback system
07/21/1987US4682245 Video and audio signal recording, reproducing and editing apparatus with replacement of viewed luminance signal component during insert audio editing mode
07/21/1987US4681925 Fluorinated polyacrylates and polyacrylamides having a controlled cross-linking degree, and process for preparing same
07/21/1987US4681813 Ceramic substrate for a thin layer magnetic head
07/21/1987US4681669 Method for producing magnetic recording media
07/21/1987US4681451 Optical proximity imaging method and apparatus
07/21/1987US4681447 Interferometer apparatus and method for determining the spatial relationship of two or more objects
07/21/1987CA1224565A1 Twin track vertical read-write head structure
07/21/1987CA1224564A1 Disk accessing circuitry
07/16/1987WO1987004095A1 Method of preparing base for memory disk
07/16/1987WO1987004094A1 Method of preparing base for memory disk
07/16/1987WO1987004093A1 Method of preparing metal base for memory disk
07/16/1987DE3700757A1 Rotating head
07/16/1987DE3600624A1 Process for stabilizing acicular ferromagnetic chromium dioxide
07/15/1987EP0229014A2 Magnetic recording medium
07/15/1987EP0228909A2 A magnetooptical storage element
07/15/1987EP0228903A2 Magnetic heads
07/15/1987EP0228882A2 Recorder-decoder system and decoder for such a system
07/15/1987EP0228851A2 Sound field expansion systems
07/15/1987EP0228688A2 Perpendicular magnetic recording head
07/15/1987EP0228646A2 A signal processing apparatus for disc memory devices
07/15/1987EP0228534A2 Electrical apparatus for increasing digital data density by signal processing
07/15/1987EP0228526A2 Process and device for application of a magnetic strip on a slide
07/15/1987CN86106790A Ferro-silicon-aluminium magnetic film and its manufacturing method and laminated film magnetic head
07/14/1987US4680742 Magneto-optical recording element
07/14/1987US4680657 Method and apparatus for reproducing magnetically recorded signals with a D.C. biasing magnetic field produced by a D.C. biasing coil
07/14/1987US4680225 Magnetic tape having a leader tape
07/14/1987US4680218 Magnetic recording medium
07/14/1987US4680217 Polyester film for magnetic recording media