Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826) |
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05/26/1987 | US4669005 Reproducing apparatus |
05/26/1987 | US4669004 High capacity disk file with embedded sector servo |
05/26/1987 | US4669003 Method and apparatus for eliminating apparent offset in the servo code in a magnetic disc drive |
05/26/1987 | US4669002 Multiple magnetic head rotary transducer drum for simultaneous recording and reproducing |
05/26/1987 | US4668913 Constant flux magneto resistive magnetic reluctance sensing apparatus |
05/26/1987 | US4668587 Magnetic recording medium |
05/26/1987 | US4668586 Magnetic recording media |
05/26/1987 | US4668568 Magnetic recording medium |
05/26/1987 | US4668526 Method of making magnetic head for computers |
05/26/1987 | US4668414 Process for producing acicular particles containing an iron carbide |
05/26/1987 | US4668355 Solutions for extracting magnetic particles |
05/26/1987 | US4667524 Carriage driving machanism |
05/21/1987 | WO1987003130A1 Disk drive control system |
05/21/1987 | WO1987003129A1 Binarily related variable rate recorder |
05/21/1987 | DE3540886A1 Magnetic head support for a magnetic disc store |
05/20/1987 | EP0222647A1 Raising device for a magnetic writing and/or reading head slider in a disc memory apparatus |
05/20/1987 | EP0222564A2 Magnetic recording medium |
05/20/1987 | EP0222459A2 Robotic disk handler system and method |
05/20/1987 | EP0222458A2 Disk and plug |
05/20/1987 | EP0222183A2 Thin film magnetic head |
05/20/1987 | EP0222139A2 Sealed actuator assembly |
05/20/1987 | EP0222071A2 Twin track vertical magnetic recording servo control method and apparatus with offset voltage compensation |
05/20/1987 | EP0222054A2 Mechanism for moving recording heads across computer tapes |
05/20/1987 | EP0093199B1 Diffusion bonding of dissimilar ceramics |
05/19/1987 | US4667260 Thin film vertical recording head |
05/19/1987 | US4667259 Non-magnetic part in magnetic head assembly |
05/19/1987 | US4667258 Disk drive with multiple head cartridge |
05/19/1987 | US4667242 Automatic gain control circuit |
05/19/1987 | US4667167 Circuit for automatic gain control |
05/19/1987 | US4666789 Magneto-optic recording medium |
05/19/1987 | US4666788 Perpendicular magnetic recording medium, method for producing the same, and sputtering device |
05/19/1987 | US4666784 Polyurethane layer with a metal sulfonate group |
05/19/1987 | US4666783 Magnetic recording media |
05/19/1987 | US4666781 Magnetic recording media |
05/19/1987 | US4666773 Ferromagnetic particles are given magnetic anisotropy vertical to surface |
05/19/1987 | US4666770 Multilayer, nonmagnetic supports |
05/19/1987 | US4666769 Undercoating on substrate, magnetic layer |
05/19/1987 | US4666759 Data recording medium |
05/19/1987 | US4666754 Multilayer, nonmagnetic substrate, overcoatings |
05/19/1987 | US4666554 Method of manufacturing a sensor having a magnetic field sensitive element |
05/19/1987 | US4665612 Method of manufacturing a glass-bonded magnetic head having diffusion barriers |
05/13/1987 | EP0221762A2 Transport for tape cartridge with leader block |
05/13/1987 | EP0221740A2 Servo data demodulators |
05/13/1987 | EP0221697A2 Magnetic head of amorphous magnetic alloy and process for producing the same |
05/13/1987 | EP0221583A2 Method of manufacturing magnetic head cores |
05/13/1987 | EP0221540A2 Magnetic transducer head utilizing magnetoresistance effect |
05/13/1987 | EP0221309A1 Metallic magnetic recording medium |
05/12/1987 | US4665454 Data transfer apparatus for use with a magnetic disk cartridge |
05/12/1987 | US4665453 Floppy disc recording and/or reproducing apparatus |
05/12/1987 | US4665451 Servo with impulse relay for a magnetic-tape-cassette apparatus |
05/12/1987 | US4665450 Helical scan type magnetic recording and/or reproducing apparatus |
05/12/1987 | US4665449 Rotating head type reproducing apparatus |
05/12/1987 | US4665447 Method and apparatus for recording a digital information signal and tracking pilot signals at different locations in the track |
05/12/1987 | US4665443 Signal recording and reproducing apparatus |
05/12/1987 | US4664981 Excellent electromagnetic properties |
05/12/1987 | US4664979 Durable magnetic tapes |
05/12/1987 | US4664977 Opto-magnetic recording medium |
05/12/1987 | US4664976 Magnetic recording medium comprising a protective carbon nitride layer on the surface thereof |
05/12/1987 | US4664975 Magnetic recording media comprising an antistatic agent-containing resin layer provided between a support and a magnetic recording layer |
05/12/1987 | US4664965 Magnetic recording medium |
05/12/1987 | US4664964 Magnetic recording medium |
05/12/1987 | US4664963 Magnetic recording medium and production processes thereof |
05/12/1987 | US4664947 Multi-layer process for cobalt treatment of ferromagnetic oxides |
05/12/1987 | US4664831 Preparation of finely divided ferrite powders |
05/12/1987 | US4664734 Process for producing a magnetic recording medium |
05/12/1987 | US4663836 Method of manufacturing a magnetic head |
05/12/1987 | CA1221764A1 System for the reproduction of signals stored on a magnetic tape |
05/06/1987 | EP0220812A2 High capacity disc drive |
05/06/1987 | EP0220740A2 Process for protecting and lubricating surfaces subjected to friction and wear |
05/06/1987 | EP0220597A2 Thin film vertical magnetic recording medium with a substrate, an intermediate layer and a magnetisable layer |
05/06/1987 | EP0220586A2 Fine isometric hexaferrite pigments with a W structure, process for preparing same and use thereof |
05/06/1987 | EP0220580A2 Magnetic recording medium |
05/06/1987 | EP0220466A1 Apparatus for recording video signals on rotary recording medium with appropriate angular phase in rapid response to start of rotation |
05/06/1987 | EP0220385A1 Simplified, shielded twin-track read/write head structure |
05/06/1987 | EP0220382A2 Disk incremental rewrite |
05/06/1987 | EP0220272A1 Slider assembly with dynamically positionable transducer |
05/06/1987 | EP0220240A1 Edge guided magnetic tape tracking |
05/05/1987 | US4663686 Head cleaning cartridge for magnetic disk drive |
05/05/1987 | US4663685 Magnetoresistive read transducer having patterned longitudinal bias |
05/05/1987 | US4663684 Magnetic transducer using magnetoresistance effect |
05/05/1987 | US4663683 Magnetoresistive thin film head |
05/05/1987 | US4663682 Apparatus for loading and unloading a magnetic head assembly on a magnetic recording surface |
05/05/1987 | US4663678 System for writing and reading digital data interspersed with analog audio frequency data on magnetic recording tape |
05/05/1987 | US4663676 Return to zero vertical magnetic recording system |
05/05/1987 | US4663607 Magnetoresistive element |
05/05/1987 | US4663555 Method and apparatus for controlling a bimorph leaf which supports a deflectable head |
05/05/1987 | US4663304 Acid-treated catalysts for olefin conversion and method for preparing the catalysts |
05/05/1987 | US4663246 Magnetic recording medium |
05/05/1987 | US4663242 Method for producing a metal alloy strip |
05/05/1987 | US4663217 Magnetic recording medium |
05/05/1987 | US4663209 Polyester support, ferromagnetic particles |
05/05/1987 | US4663193 Sputtering in nitrogen atmosphere |
05/05/1987 | US4663184 Magnetic recording media |
05/05/1987 | US4662985 Method of smoothing out an irregular surface of an electronic device |
05/05/1987 | CA1221455A1 Magnetic transducer positioning apparatus |
05/05/1987 | CA1221454A1 Continuous-plus-embedded servo data position control system for magnetic disk device |
05/05/1987 | CA1221453A1 Apparatus for recording a video signal |
05/05/1987 | CA1221452A1 Method and apparatus for recording a digital information signal |
04/30/1987 | DE3633597A1 PCM signal recording and reproducing apparatus |
04/30/1987 | DE3538290A1 Arrangement for the magnetic recording of pulses |