Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
03/1986
03/11/1986US4575474 Magnetic recording medium and composition and method therefor
03/11/1986CA1201803A1 Information signal recording and reproducing apparatus
03/11/1986CA1201747A1 Electric motor with elastic vibration damping rotor to shaft coupling
03/05/1986EP0173538A2 Helical scanning type magnetic recording/reproducing method
03/05/1986EP0173213A2 Process for producing magnetic recording media
03/04/1986US4574322 Channel changing mechanism of a tape player
03/04/1986US4574320 Dictating machine having a revising function
03/04/1986US4574206 Wave-shaping circuit
03/04/1986US4573807 Fluid bearing device
03/04/1986US4573368 Carriage driving apparatus
02/1986
02/26/1986EP0172609A1 Data transcription magnetic head assembly
02/26/1986EP0172566A1 Perpendicular magnetic recording medium and production process thereof
02/26/1986EP0172520A2 Process for making magnetic record carriers
02/26/1986EP0172511A2 Cleaner cartridge, in particular for cleaning audio and video tape recorders
02/26/1986EP0172501A2 Magnetic recording medium
02/26/1986EP0172472A2 Novel phosphorylated reaction products and compositions incorporating such products
02/26/1986EP0172441A1 Tracking control system for a video tape recorder
02/26/1986EP0042439B1 Magnetic recording medium having a lubricated contact layer
02/25/1986US4573097 Stretched surface recording disk and method of manufacture
02/25/1986US4573094 Moving magnet disc drive actuator
02/25/1986US4573091 Cartridge tape drive
02/25/1986US4573089 Recording and reproducing apparatus
02/25/1986US4572965 Circuit for detecting existence of an information signal
02/25/1986US4572867 High density magnetic video tapes
02/25/1986US4572866 Magnetic recording medium
02/25/1986CA1201070A1 Adaptive signal weighting system
02/19/1986EP0171957A2 Electromagnetically controlled scanning magnetic transducer
02/19/1986EP0171956A2 Permanent magnet biased narrow track magnetoresistive transducer
02/19/1986EP0171759A2 Signal-processing apparatus compensating the distortion in a transmitted or recorded signal
02/19/1986EP0171725A2 A twin head for electronic still camera and a method for making the same
02/19/1986EP0171714A1 Recording and reproducing apparatus
02/19/1986EP0171540A1 Blocking foil, in particular hot-blocking foil with a magnetic layer
02/18/1986US4571653 Perpendicular magnetic recording head
02/18/1986US4571652 Magnetic recording and reproducing apparatus
02/18/1986US4571651 Method of manufacturing a magnetic head assembly and product
02/18/1986US4571649 Disk drive carriage structure
02/18/1986US4571648 Device for loading the main body of a platform containing at least one read/write transducer of a data medium
02/18/1986US4571647 Tape recorder
02/18/1986US4571645 Floppy disk handling apparatus
02/18/1986US4571643 VTR Circuit arrangement for recording index signal
02/18/1986US4571641 Information recording device
02/18/1986US4571364 Magnetic recording medium
02/18/1986US4571362 Magnetic recording medium
02/18/1986CA1200898A1 Video tape recorder
02/13/1986WO1986000877A1 Magnetoresistive sensor for producing electric signals
02/12/1986EP0171288A2 Method of magnetic recording
02/12/1986EP0171266A2 Recording digital information signals
02/12/1986EP0171234A2 Circuitry for characterizing speech for tamper protected recording
02/12/1986EP0171185A2 Magnetic recording medium
02/12/1986EP0171181A2 Electron-beam adhesion-promoting treatment of polyester film base
02/12/1986EP0171130A1 Cartridge tape drive with improved head-positioner means
02/12/1986EP0171063A2 Aromatic polyester films
02/12/1986EP0170959A2 Sytem for duplicating sound recording grooves on films
02/11/1986US4570191 Optical sensor for servo position control
02/11/1986US4569962 Perfluoropolyether compositions which are soluble in non-fluorinated solvents
02/11/1986US4569881 Multi-layer amorphous magneto optical recording medium
02/11/1986US4569871 Fluoainated acrylic ester polymers
02/11/1986US4569856 Predispersing particles, mixing with binder, coating on a support
02/11/1986US4569822 Powder metal process for preparing computer disk substrates
02/11/1986US4569775 Method for manufacturing a magnetic powder for high density magnetic recording
02/11/1986CA1200598A1 Digital signal reproducing apparatus
02/05/1986EP0170420A2 A magnetic disk
02/05/1986EP0170418A1 Magnetic recording and/or reproducing apparatus
02/05/1986EP0170393A1 Data recording medium
02/05/1986EP0170312A1 Magnetic recording element and method of manufacturing same
02/05/1986EP0170223A1 Magnetic recording and reproducing apparatus
02/05/1986EP0170097A1 Apparatus for magnetic recording and reproducing video and sound signals
02/05/1986EP0170032A1 Magnetic recording-reproducing apparatus
02/05/1986EP0170004A1 Magnetic head
02/05/1986EP0169929A1 Magnetic recording medium
02/05/1986EP0169928A1 Magnetic recording medium
02/05/1986EP0169910A1 Rotary head type magnetic image recorder/reproducer
02/04/1986US4568993 Magnetic head
02/04/1986US4568992 Disc drive linear actuator
02/04/1986US4568991 Axial partitioning of disk pack
02/04/1986US4568988 Micro hard-disk drive system
02/04/1986US4568987 Amplifier input circuit having a figure eight conductive pattern
02/04/1986US4568906 Sensor having a magnetic field-sensitive element with accurately defined weight and thickness dimensions in the nanometer range
02/04/1986US4568619 Ferromagnetic chromium dioxide and zinc oxide
02/04/1986US4568616 Containing crosslnked emulsion polymerized particles
02/04/1986US4568613 Ferromagnetic powder dispersed in binder
02/04/1986US4568612 Using crosslinked polyurethane-polyurea binder
02/04/1986US4568611 Magnetic recording media
02/04/1986US4568610 Binder composed of polyurethanes and drying polymers
02/04/1986US4568600 Discontinuous polymer blend film having fine protrusions; video tapes-duratsility
02/04/1986US4568599 Polysioxane, silane coupling agent, surfactant and wax
02/04/1986US4568598 Semicrystalline sputter etched support coated with functional layer
02/04/1986CA1200314A1 Magnetic disc recording and/or reproducing apparatus
02/04/1986CA1200312A1 Control arrangement for electronic appliance
01/1986
01/30/1986WO1986000771A1 Audio-video adapter for audio visual apparatuses
01/30/1986WO1986000741A1 Improved substrate for rigid disk storage media and method and apparatus for making the same
01/30/1986WO1986000740A1 Magnetic head
01/29/1986EP0169540A2 Method and apparatus for recording and reproducing a digital signal with a stationary head
01/29/1986EP0169525A2 Method of manufacturing layered magnetic record carriers
01/29/1986EP0169524A2 Magnetic recording medium
01/29/1986EP0169523A2 Process for producing a magnetic recording medium in the shape of a layer
01/29/1986EP0169522A2 Process for producing a magnetic recording medium
01/29/1986EP0169479A2 Auto-tracking method and apparatus of a magnetic recording/reproducing apparatus
01/29/1986EP0169406A1 Electrodynamic actuator for pivoting one or more transducer supporting arms for disc memories
01/29/1986EP0169229A1 Coating process