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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12/02/1987 | EP0247839A2 Magnetic recording medium |
12/02/1987 | EP0247787A2 Tape recorders having flying erase heads |
12/02/1987 | EP0247681A1 Magnetic material, magnetic recording medium, and method of manufacturing a magnetic material |
12/02/1987 | EP0247453A2 Magnetic disk drive apparatus or system |
12/02/1987 | EP0247442A2 Rotating magnetic head device in magnetic recording and reproducing apparatus |
12/02/1987 | EP0247339A2 Servo gain compensation in a disc drive |
12/02/1987 | EP0247334A2 Magnetic recording medium |
12/02/1987 | EP0247068A1 Disk drive control system |
12/01/1987 | US4710838 Magnetic thin-film head for a recording medium that can be magnetized vertically |
12/01/1987 | US4710837 Magnetic head device including magnetic media biasing and positioning means |
12/01/1987 | US4710836 Magnetic head |
12/01/1987 | US4710834 Apparatus for positioning a magnetic disk read head with pulse operated detent magnet |
12/01/1987 | US4710833 Floppy disk r/w head assembly |
12/01/1987 | US4710832 Tracking system for rotary magnetic recording medium using weighted sampled track values |
12/01/1987 | US4710828 Tracking alignment for a rotating magnetic transducer head |
12/01/1987 | US4710826 Apparatus with liquid crystal display panel, for recording/playing back television signal by utilizing digital audio tape recorder system |
12/01/1987 | US4710687 Seek operation control apparatus |
12/01/1987 | US4710427 With a surfactant, steeping in organic liquid and drying |
12/01/1987 | US4710424 Magnetic disk and method of making same |
12/01/1987 | US4710421 Low heat shrinkage, dimensional stability, winding |
12/01/1987 | US4710243 Wear-resistant alloy of high permeability and method of producing the same |
12/01/1987 | US4709816 Recording disc cartridge |
11/25/1987 | EP0246757A2 Process for forming a coating |
11/25/1987 | EP0246742A1 Device for damping the oscillations of a stepping motor |
11/25/1987 | EP0246706A1 Magnetic transducing head having clad core faces |
11/25/1987 | EP0246705A1 Methods of and apparatus for recording an information signal |
11/25/1987 | EP0246685A2 Method for stacking billets |
11/25/1987 | EP0246661A2 Apparatus for recording information signals |
11/25/1987 | EP0246501A1 Process for producing acicular magnetic iron oxides containing cobalt |
11/25/1987 | EP0246375A1 Head/arm assembly and rotary access mechanism for a disk file |
11/25/1987 | CN87208058U Tape cartridge being able to clean magnetic head |
11/24/1987 | US4709288 Adjusting means in particular for guide elements, and magnetic tape cassette possessing such means |
11/24/1987 | US4709287 Head height adjustment construction in magnetic recording and reproducing apparatus with rotary cylinder |
11/24/1987 | US4709286 Supporting means for supporting a magnetic transducer for a double surface type flexible disk apparatus |
11/24/1987 | US4709285 Head assemblies mounted for optimum contact with a flexible magnetic disk |
11/24/1987 | US4709284 Magnetic recording device having a stabilized zirconia slider and a cobalt based recording medium |
11/24/1987 | US4709281 Data transfer apparatus for use with a magnetic disk cartridge |
11/24/1987 | US4709280 Apparatus for varying the path of magnetic tape passing over a rotary tape head |
11/24/1987 | US4709279 Read/write amplifier power control device for a disk apparatus |
11/24/1987 | US4709275 Apparatus for magnetically recording and/or reproducing two-channel audio signals together with a color video signal in successive oblique tracks on a magnetic tape |
11/24/1987 | US4709175 Linear pulse motor |
11/24/1987 | US4709174 Magnetic pole pieces for using in linear pulse motor |
11/24/1987 | US4708909 Radiation-curable, magnetic coating material and magnetic recording medium using the same |
11/24/1987 | US4708906 Magnetic recording medium comprising an undercoat layer made of specific type of resin composition |
11/24/1987 | US4708902 Polyester films suitable for use in magnetic recording media |
11/24/1987 | US4707948 Float lapping fixture |
11/24/1987 | CA1229641A1 Fluid bearing device |
11/19/1987 | WO1987006745A3 Magnetic information-recording element and method of manufacture |
11/19/1987 | EP0245883A2 Polyester film for magnetic recording medium |
11/19/1987 | EP0245449A1 Binarily related variable rate recorder |
11/19/1987 | EP0245303A1 Detection and amplification circuit |
11/17/1987 | US4707818 Method and apparatus for recording digitized information on a disc |
11/17/1987 | US4707756 Silicon, germanium underlays; cobalt alloy |
11/17/1987 | US4707755 Optical read-out magnetic head |
11/17/1987 | US4707754 Voice coil balanced actuator |
11/17/1987 | US4707753 Disk drive head access mechanism |
11/17/1987 | US4707750 Automatic sequencer for a flexible disk loader/copier |
11/17/1987 | US4707593 Visible image magnetic card |
11/17/1987 | US4707417 Magnetic composite film |
11/17/1987 | US4707411 Vinyl chloride polymers |
11/17/1987 | US4707410 Magnetic recording media |
11/17/1987 | US4707403 Magnetic recording medium having an improved magnetic recording layer |
11/17/1987 | US4707392 Protective coatings, radiation-cured unsaturated compound, roughness |
11/17/1987 | US4707380 Process for preparing a magnetic recording medium |
11/11/1987 | EP0244980A2 Rate-of-change signal generator and method using sampling techniques |
11/11/1987 | EP0244868A2 Magnetic recording disc |
11/11/1987 | EP0116544B1 Management of defects in storage media |
11/11/1987 | CN86206166U Special communication recorder with magnetic recording paper |
11/11/1987 | CN86103068A Disc drive compatible tape cartridge |
11/10/1987 | US4706293 Circuitry for characterizing speech for tamper protected recording |
11/10/1987 | US4706282 Decoder for a recorder-decoder system |
11/10/1987 | US4706232 Optical recording and reproducing apparatus |
11/10/1987 | US4706147 Cassette for cleaning the heads of a magnetic tape recorder |
11/10/1987 | US4706146 Magnetic head with concave contact face |
11/10/1987 | US4706145 Erasing head |
11/10/1987 | US4706144 Rotary head device with fluid bearing |
11/10/1987 | US4706143 Rotary head cylinder device with fluid bearing |
11/10/1987 | US4706142 Magnetic disk apparatus |
11/10/1987 | US4706138 Amplification of signals produced by a magnetic sensor |
11/10/1987 | US4705718 Magnetic recording medium |
11/10/1987 | US4705711 Knurled surface to prevent slippage, magnetic tapes |
11/10/1987 | US4705699 Method of coating magnetic recording media with perfluoropolyether compositions which are soluble in non-fluorinated solvents |
11/10/1987 | US4705613 Sputtering method of making thin film head having improved saturation magnetization |
11/10/1987 | US4705566 Polishing composition for memory hard disc |
11/10/1987 | US4704788 Method for making magnetic heads |
11/07/1987 | CN86210363U Electric phonograph using magnetic disc |
11/05/1987 | WO1987006745A2 Magnetic information-recording element and method of manufacture |
11/04/1987 | EP0244150A2 Stepping motor excitation sequences |
11/04/1987 | EP0244024A1 Magnetic recording element |
11/04/1987 | EP0243973A2 Compact disk drive |
11/04/1987 | EP0243860A2 A multilayered vertical magnetic recording medium |
11/04/1987 | EP0243836A1 Magnetic-recording carriers |
11/04/1987 | EP0243829A2 Magnetic record carrier |
11/04/1987 | EP0243821A2 A servo control system for a data recording disk file |
11/04/1987 | EP0243798A2 Magnetic recording medium and method of manufacturing the same |
11/04/1987 | EP0243729A2 Method and apparatus for eliminating apparent offset in the servo code in a magnetic disc drive |
11/04/1987 | EP0243672A2 A magnetic recording medium |
11/04/1987 | EP0243627A1 Electro-deposited CoNiFe alloy for thin film heads |
11/04/1987 | EP0243604A2 A magnetic recording medium |
11/04/1987 | EP0243466A1 Apparatus and method for damping head positioners for disk drives. |