| 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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| 01/12/1982 | US4310861 Data-recording device |
| 01/12/1982 | US4310599 Light pigment powder and electoconductive carbon in a binder as antistatic layer |
| 01/12/1982 | US4310565 Process of making a magnetic recording media |
| 01/12/1982 | US4310349 Sodium tripolyphosphate matrix |
| 01/12/1982 | CA1116292A1 Automatic head scan tracking system |
| 01/12/1982 | CA1116291A1 Video signal recording and/or reproducing system |
| 01/12/1982 | CA1116290A1 Playback apparatus |
| 01/12/1982 | CA1116289A1 Method and apparatus for producing an inalterable magnetic recording |
| 01/11/1982 | EP0035542A4 Composite magnetic head with multitrack support structure. |
| 01/06/1982 | EP0042931A2 Magnetic disk initialization method |
| 01/05/1982 | US4309732 Transducer supporting assembly for double sided floppy disk |
| 01/05/1982 | US4309730 Method of reading and/or writing information and apparatus for carrying out the method |
| 01/05/1982 | US4309482 Magnetic recording medium |
| 01/05/1982 | US4309471 Magnetic audio-recording tape |
| 01/05/1982 | US4309459 Silicon dioxide |
| 01/05/1982 | CA1115835A1 Video signal recording system |
| 01/05/1982 | CA1115511A1 Process for producing cobalt-containing ferromagnetic iron oxide powder |
| 12/30/1981 | EP0042439A1 Magnetic recording medium having a lubricated contact layer |
| 12/29/1981 | US4308564 Head load/unload mechanism for rotating magnetic memories |
| 12/29/1981 | US4308560 Method of operating a signal reproducing apparatus for effecting synchronous reproduction of recorded signals |
| 12/29/1981 | US4308557 Video disc system |
| 12/29/1981 | US4308311 Magnetic recording material |
| 12/29/1981 | CA1115415A1 Drive circuit for controlling a movable magnetic head |
| 12/24/1981 | WO1981003726A1 Fast frame rate augmentation |
| 12/24/1981 | WO1981003711A1 Cleaning device for tape recorder head |
| 12/22/1981 | US4307427 Pad abutting device for a magnetic head of a dual capstan type cassette tape recorder |
| 12/22/1981 | US4307426 Azimuth angle adjusting device for a tape player |
| 12/22/1981 | US4307417 Video signal reproducing apparatus |
| 12/22/1981 | US4307156 Magnetic record member |
| 12/22/1981 | US4307154 Magnetic recording medium |
| 12/22/1981 | US4306908 Composed of cobalt, nickel, iron, a transition metal, and one of zirconium, hafnium or titanium |
| 12/22/1981 | US4306781 Multi-channel sound and data system |
| 12/15/1981 | US4306262 Rotary carrier for carrying rotary magnetic heads |
| 12/15/1981 | US4306261 Method and apparatus for recording helical scan information and tracking signals |
| 12/15/1981 | US4306260 Dual magnetic head mount |
| 12/15/1981 | US4306258 Magnetic head supporting mechanism of double side type flexible disc drive apparatus |
| 12/15/1981 | US4306257 Processing read-back signals in magnetic disk systems |
| 12/15/1981 | US4306215 Thin magnetoresistive head |
| 12/15/1981 | US4306194 Data signal detection circuit |
| 12/15/1981 | US4305995 Magnetic recording medium |
| 12/15/1981 | US4305993 Metallic magnetic particles, resin binder, salt of lanolin fatty acid |
| 12/15/1981 | US4305921 Process for producing iron oxide |
| 12/15/1981 | CA1114245A1 Process for producing magnetic recording element |
| 12/15/1981 | CA1114244A1 Magnetic recording medium |
| 12/10/1981 | WO1981003591A1 High speed magnetic tape inspection equipment |
| 12/09/1981 | EP0041409A1 Magnetic transducer for the playback or recording of information of a magnetic carrier |
| 12/09/1981 | EP0041321A1 Recording media |
| 12/09/1981 | EP0041138A1 Magnetic disk memory |
| 12/09/1981 | EP0041133A2 Magnetic head assemblies |
| 12/08/1981 | US4305105 Linear actuator for magnetic disc drive and the like |
| 12/08/1981 | US4305103 Automatic reverse cassette type recorder |
| 12/08/1981 | US4305102 Multi-channel head device and its manufacturing method |
| 12/08/1981 | US4304992 Magnetic card reader |
| 12/08/1981 | US4304807 Polyethylene terephthalate with surface projections |
| 12/02/1981 | EP0040994A1 Magnetic transducer having a variable largest dimension gap for playing back or recording information on a magnetic carrier |
| 12/02/1981 | EP0040722A1 Process for the preparation of synthetic lepidocrocite |
| 12/01/1981 | US4303988 Random accessible signal filing system |
| 12/01/1981 | US4303956 Load-sharing type magnetic head |
| 12/01/1981 | US4303953 Method of positioning reproducing elements and device for carrying out the method |
| 12/01/1981 | US4303951 Device for compensating unequal write fields in magnetic data-storage devices, especially in disc memories |
| 12/01/1981 | US4303949 Magnetic recording device for providing security related information |
| 12/01/1981 | US4303738 Magnetic media having tridecyl stearate lubricant |
| 12/01/1981 | US4303699 For use with high density recording |
| 12/01/1981 | CA1113605A1 Multitrack magnetic heads |
| 12/01/1981 | CA1113603A1 Automatic adjustment of biasing current for recording sound by three-head type tape-recorder |
| 12/01/1981 | CA1113577A1 Switchable magnetic device and method of manufacturing same |
| 11/25/1981 | EP0040561A2 Thermally destructible magnetic memory element |
| 11/25/1981 | EP0040437A2 Method of manufacturing magnetic recording medium |
| 11/24/1981 | US4302790 Magnetic recording head with effective magnetic gap length less than about 15μ inches |
| 11/24/1981 | US4302788 Reversible cassette-type recording and/or reproducing apparatus |
| 11/24/1981 | US4302787 Tape cassette and video recording and reproducing system using the same |
| 11/24/1981 | US4302783 Method and apparatus for recording and reproducing a plurality of bits on a magnetic tape |
| 11/24/1981 | US4302523 Magnetic recording elements containing transparent recording layer |
| 11/24/1981 | US4302510 Magnetic recording medium |
| 11/24/1981 | US4302486 Ultra-thin films |
| 11/24/1981 | CA1113184A1 Apparatus for controlling the scanning path of a rotary transducer |
| 11/18/1981 | EP0040066A1 Tracking control arrangements for magnetic reproducing devices |
| 11/18/1981 | EP0039915A1 Head tracking control system |
| 11/17/1981 | US4301487 Rotary head assembly with lubricating double sleeve construction |
| 11/17/1981 | US4301486 System for recording information on a flexible information storage media |
| 11/17/1981 | US4301416 Servo preamplifier and demodulator chain using transconductance balanced modulators |
| 11/17/1981 | US4301353 Method for producing magnetic head |
| 11/10/1981 | US4300180 Amorphous spring-shield for tape cassette |
| 11/10/1981 | US4300179 Composite magnetic head with multitrack support structure |
| 11/10/1981 | US4300178 Multichannel magnetic head |
| 11/10/1981 | US4300177 Thin-film magnetic head for reading and writing information |
| 11/10/1981 | US4300176 Fixed disc head actuator assembly |
| 11/10/1981 | US4300174 Guard band control for magnetic disks |
| 11/10/1981 | US4300172 Playback system with amplitude correction for frequency modulated signals |
| 11/10/1981 | US4300080 Power driver control circuit for servo actuator |
| 11/10/1981 | US4299888 Dispersing a nickel hypophosphite solution with a binder and solvent, desolventizing, exposure to radiant energy, and development |
| 11/10/1981 | US4299882 Magnetic recording medium and process |
| 11/10/1981 | US4299678 Magnetic target plate for use in magnetron sputtering of magnetic films |
| 11/10/1981 | US4299622 Phosphorus, aluminum, silicon, iron alloy |
| 11/10/1981 | US4299186 Method and apparatus for applying a viscous fluid to a substrate |
| 11/10/1981 | CA1112372A1 Method of reinforcing a conductive base pattern by electroplating |
| 11/10/1981 | CA1112360A1 Circuit system for reproducing a signal from a moving record carrier |
| 11/10/1981 | CA1112359A1 Magnetic recording medium |
| 11/10/1981 | CA1112358A1 Mass producing magnetic head cores with cant angles |
| 11/04/1981 | EP0039273A1 Method of preparation of magnetic particles with a high coercivity, consisting of cobalt-doped ferrimagnetic iron oxide |