| 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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| 05/06/1980 | US4201809 Fatty acid esters of pentaerythritol or trimethylolalkane as lubricants |
| 05/06/1980 | US4201761 Process for making iron oxide of controlled particle size |
| 05/06/1980 | US4201486 Process for the manufacture of magnetic recording media |
| 05/06/1980 | US4201149 Apparatus for spin coating in the production of thin magnetic layers for magnetic discs |
| 05/06/1980 | CA1077168A1 Rotary head assembly |
| 05/01/1980 | WO1980000891A1 Method of fabricating metallic magnetic tape |
| 05/01/1980 | WO1980000890A1 Mechanism for adjusting position of magnetic head for magnetic tape recorder/reproducer |
| 04/30/1980 | EP0010506A1 Digital coding and decoding methods and devices for the recording of audio signals with a television signal, particularly on a video disk |
| 04/30/1980 | EP0010494A1 Method of writing information on a magnetic-recording carrier |
| 04/29/1980 | US4200894 Head adjustment mechanism for rigid magnetic disc memory apparatus |
| 04/29/1980 | US4200827 Positioning system employing feedforward and feedback control |
| 04/29/1980 | US4200680 Process for preparing magnetic iron oxide and magnetic iron oxide produced thereby |
| 04/29/1980 | US4200678 Magnetic pigments |
| 04/22/1980 | US4199793 Digital recording |
| 04/22/1980 | US4199382 Magnetic material |
| 04/22/1980 | US4198871 Transducer positioning apparatus |
| 04/22/1980 | CA1076253A1 Magnetic converter having a magnetoresistive element |
| 04/22/1980 | CA1076252A1 Magnetoresistive head |
| 04/22/1980 | CA1076251A1 Magnetic tape copying method and apparatus |
| 04/16/1980 | EP0009673A1 Recording and/or reproducing apparatus for information carriers provided with a magnetisable area |
| 04/16/1980 | EP0009663A1 Electronic tachometer circuit |
| 04/16/1980 | EP0009599A1 Circuit for reducing the noise in the read-signal of a magnetic layer memory |
| 04/16/1980 | EP0009531A1 Transducer signal amplifier and transducer bias circuits |
| 04/15/1980 | US4198689 Garnet magnetoresistive sensor for magnetic fields |
| 04/15/1980 | US4198667 Magnetic head platform incorporating at least one integrated transducer |
| 04/15/1980 | US4198666 Positioning device for a write/read magnetic head in a magnetic-disc data storage device |
| 04/15/1980 | US4198662 Method of recording and playing back video signals on magnetic tape |
| 04/15/1980 | US4198458 Laminate polyester films |
| 04/15/1980 | US4198059 Method and means for playing back or moving of records or tapes substantially free of electrostatic charges |
| 04/15/1980 | US4197989 Magnetic recording |
| 04/15/1980 | US4197987 Device for detecting magnetic fields and method of making same |
| 04/15/1980 | CA1075808A1 Flexible disc recorder with skewed transducer transport |
| 04/15/1980 | CA1075807A1 Transducer positioning system |
| 04/08/1980 | US4197566 Floating head slider holding apparatus and its use |
| 04/08/1980 | US4197565 System for reproducing a video signal recorded in parallel track sections on a recording medium |
| 04/08/1980 | US4197564 Automatically calibrated RF envelope detector circuit |
| 04/08/1980 | US4197563 Method and device for orientating and fixing in a determined direction magnetic particles contained in a polymerizable ink |
| 04/08/1980 | US4197562 Method of slow-motion play back of video signals and video tape recorder for same |
| 04/08/1980 | US4197507 Suppressing pulse synthesizer |
| 04/08/1980 | US4197357 Magnetic recording element in which a salt of an amine and a phosphoric acid ester are used as a dispersion agent |
| 04/08/1980 | US4197347 High density magnetic recording media |
| 04/08/1980 | CA1075358A1 Rotary head assembly |
| 04/02/1980 | EP0009087A1 Positioning circuit for a data transducer head in a disc memory |
| 04/01/1980 | US4196457 Magnetic tape rotary headwheel assembly with venting means |
| 04/01/1980 | US4196456 Magnetic head pivotal support with compact drive means |
| 04/01/1980 | US4196258 Magnetic recording medium and method of manufacturing same |
| 04/01/1980 | CA1074912A1 Disc drive linear actuator and control system therefor |
| 03/25/1980 | US4195323 Thin film magnetic recording heads |
| 03/25/1980 | US4195322 Record/playback head and data storage apparatus therefor |
| 03/25/1980 | US4195320 Record track identification and following |
| 03/25/1980 | US4195318 High density bias linearized magnetic recording system utilizing Nyquist bandwidth partial response transmission |
| 03/25/1980 | CA1074444A1 Cleaning sheet and cleaning jacket for cleaning a magnetic head for flexible discs and method for cleaning a magnetic head |
| 03/25/1980 | CA1074443A2 Head to track alignment in a rotating head magnetic tape unit |
| 03/25/1980 | CA1074442A2 Head to track alignment in a rotating head magnetic tape unit |
| 03/19/1980 | EP0008777A1 Magnetic recording substrate |
| 03/19/1980 | EP0008740A1 Method for detecting retriable errors and apparatus for reorienting a transducer in a data storage system |
| 03/19/1980 | EP0008670A1 Information transducer load control system and method, particularly applicable in a magnetic disk drive apparatus |
| 03/19/1980 | EP0008617A1 Read/write preamplifier with electrical short detector |
| 03/19/1980 | EP0008598A1 Cleaning and lubricating compositions |
| 03/18/1980 | US4194227 Composite magnetic core assembly having at least one side tip for a magnetic head |
| 03/18/1980 | US4194226 Rigid magnetic disc memory apparatus including open loop stepper-motor-driven read/write head |
| 03/18/1980 | US4194225 Housing for disk drive unit |
| 03/18/1980 | US4194110 Localized-field static magnetizing device |
| 03/18/1980 | CA1074006A2 Apparatus and method for recording and reproducing digital-data |
| 03/18/1980 | CA1073658A1 Method of manufacturing a manganese-zinc-ferro-ferrite core, in particular for use in magnetic heads |
| 03/11/1980 | US4193103 Magnetic transducer head |
| 03/11/1980 | US4193099 Device for reproducing the recorded content of a magnetic card |
| 03/11/1980 | US4192985 Method for the production of integrated magnetic head structures |
| 03/11/1980 | CA1073550A1 Tape playing machine |
| 03/05/1980 | EP0008436A1 High-speed printer |
| 03/05/1980 | EP0008328A1 Amorphous magnetic films and a method of making such films |
| 03/04/1980 | US4191983 Thin film magnetic head assembly having a thin film magnetic transducer encapsulated in insulating bonding material |
| 03/04/1980 | US4191982 Magnetic transducing head with a turn in the gap |
| 03/04/1980 | US4191980 Transducers with tapered edge profiles and assembly thereof |
| 03/04/1980 | US4191978 Method for adjusting rotary head type magnetic video recording and reproducing apparatus |
| 03/04/1980 | US4191977 Biasing of magnetoresistive read head using gyrators |
| 03/04/1980 | CA1073107A1 Color killer enhancement in a video signal recording/playback system |
| 03/04/1980 | CA1073099A1 Electric control system for magnetic sheet recording and reproducing apparatus for audiovisual instruction |
| 03/04/1980 | CA1073098A1 Magnetic recording control circuit |
| 02/26/1980 | US4190872 Thin film inductive transducer |
| 02/26/1980 | US4190871 Magnetic converter having a magnetoresistive element |
| 02/26/1980 | US4190438 Ruthenium alloy having high permeability |
| 02/26/1980 | CA1072678A1 Cleaning jacket |
| 02/20/1980 | EP0008209A1 Composition for cleaning and surface treatment of phonograph records and similar objects and its use |
| 02/19/1980 | US4189784 Adaptive circuit for extracting timing information from a repetitive series of time coherent pulses |
| 02/19/1980 | US4189759 Cantilevered head support arm having increased resonance frequency |
| 02/19/1980 | US4189758 Apparatus for controlling the scanning path of a rotary transducer |
| 02/19/1980 | US4189514 Process of making high-temperature magnetic tape |
| 02/19/1980 | US4189508 Process for the preparation of magnetic recording medium |
| 02/19/1980 | US4189115 Auto-loading magnetic tape |
| 02/19/1980 | CA1072207A1 Recording apparatus for magnetic disks using both sides of the disk |
| 02/19/1980 | CA1072206A1 Storage device utilizing flexible magnetic disks |
| 02/12/1980 | US4188649 Magnetic head having a jagged-edged gap, and method for producing such head |
| 02/12/1980 | US4188648 Data security apparatus for magnetic recording disc drive |
| 02/12/1980 | US4188646 Sectorized data path following servo system |
| 02/12/1980 | US4188645 Piezoelectric servo for disk drive |
| 02/12/1980 | US4188434 Lubricant for a magnetic member |
| 02/12/1980 | US4188302 Manufacture of acicular cobalt-modified magnetic iron oxide |
| 02/12/1980 | US4188301 Triolein as lubricant |
| 02/12/1980 | US4188247 Manufacture of magnetic transducing heads |