| 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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| 01/28/1981 | EP0023175A1 Magneto-electric transducer for magnetic recording system and recording system comprising such a transducer |
| 01/28/1981 | EP0023067A1 Tape recording or reproducing apparatus with rotating magnetic head |
| 01/27/1981 | US4247878 Multi-channel magnetic head with a plurality of cores and method for manufacturing the cores |
| 01/27/1981 | US4247877 Head loading carriage assembly for a floppy disk drive |
| 01/27/1981 | US4247875 Circuitry for adjustment of biasing current for recording sound by two-head type tape-recorder |
| 01/27/1981 | US4247593 Magnetic recording medium and method of preparing the same |
| 01/27/1981 | US4247407 Magnetic recording composition |
| 01/27/1981 | US4246695 Two rail slider assembly production technique for making thin film heads |
| 01/27/1981 | CA1094686A1 No translation available |
| 01/27/1981 | CA1094682A1 Magnetic-tape cassette apparatus |
| 01/27/1981 | CA1094681A1 Tracking control apparatus |
| 01/27/1981 | CA1094680A1 Cleaner for a playing head of a cassette player |
| 01/27/1981 | CA1094631A1 Technique of character generation on magnetic tapes |
| 01/27/1981 | CA1094360A1 Palladium alloys |
| 01/22/1981 | WO1981000165A1 Magnetic transfer recording method |
| 01/22/1981 | WO1981000160A1 Apparatus and an improved method for processing of digital information |
| 01/21/1981 | EP0022651A1 Scanning type magnetic tape recorder and cassette |
| 01/21/1981 | EP0022487A1 Magnetic recording medium |
| 01/20/1981 | US4246620 Thin film magnetic head and method for manufacturing the same |
| 01/20/1981 | US4246619 Electromagnetic transducer head |
| 01/20/1981 | US4246616 System for reproducing a video signal in a slow motion or still picture reproduction |
| 01/20/1981 | US4246536 Electronic velocity measurement device |
| 01/20/1981 | US4246474 Method and apparatus for reading magnetically coded data |
| 01/20/1981 | US4246355 Ion exchange processes and products |
| 01/20/1981 | US4246316 Magnetic recording medium |
| 01/20/1981 | US4245404 Audio-visual teaching machine |
| 01/20/1981 | CA1094198A1 Digital data recorder |
| 01/20/1981 | CA1094043A1 Lubricants comprising dialkanolamine derivatives |
| 01/20/1981 | CA1093906A1 Magnetic recording members |
| 01/20/1981 | CA1093905A1 Process of producing a magnetic recording element |
| 01/14/1981 | EP0022298A1 Apparatus for recording and reading signals in tracks on a magnetic tape |
| 01/13/1981 | US4245269 Magnetic head and method of fabricating the same |
| 01/13/1981 | US4245268 Magnetic head with means for eliminating noise |
| 01/13/1981 | US4245267 Suspension device for magnetic transducers |
| 01/13/1981 | US4245265 Automatic tape bias adjusting and signal compensation recording and reproducing apparatus |
| 01/13/1981 | US4245263 Write precompensation and write encoding for FM and MFM recording |
| 01/13/1981 | US4245008 Multilayer, ferromagnetic material of iron, chromium and optionally cobalt |
| 01/13/1981 | US4244998 Patterned layers including magnetizable material |
| 01/13/1981 | US4244987 Vinyltrialkoxysilane copolymer binder hardened and coated on the support |
| 01/13/1981 | US4244932 Stabilized ferromagnetic chromium dioxide and process for obtaining same |
| 01/13/1981 | US4244788 Transducer-plated magnetically anisotropic metallic recording films, and associated techniques |
| 01/13/1981 | US4244318 Thin particulate film spin coater |
| 01/13/1981 | CA1093690A1 Magnetic recording material having columnar crystals |
| 01/13/1981 | CA1093689A1 Head assembly for magnetic stripe cards |
| 01/07/1981 | EP0022108A1 Means for improving the high frequency response in magnetic audio recording |
| 01/07/1981 | EP0021466A1 Polypropylene film and its application |
| 01/07/1981 | EP0021392A1 Magnetic transducing head assemblies |
| 01/07/1981 | EP0021326A1 Transducer positioning apparatus |
| 01/07/1981 | EP0020951A1 Process for the manufacture of magnetic recording media in layer form |
| 01/06/1981 | US4244008 Read back compensation circuit for a magnetic recording device |
| 01/06/1981 | US4243059 Method and device for determining the homogeneity of magnetic dispersions |
| 01/06/1981 | US4242954 Calendar roll system |
| 01/06/1981 | US4242783 Calender roll for use in super calender for magnetic tapes |
| 01/06/1981 | CA1093209A1 Apparatus for reproducing and/or recording magnetic tape in cassettes |
| 12/30/1980 | US4242711 Multilayer magnetic head core |
| 12/30/1980 | US4242710 Thin film head having negative magnetostriction |
| 12/30/1980 | US4242400 Magnetically structured materials |
| 12/30/1980 | CA1092707A1 Disc drive with rotary access mechanism |
| 12/30/1980 | CA1092704A1 Apparatus for recording and reproducing video signals on a magnetic tape movable at different speeds |
| 12/30/1980 | CA1092638A1 Direct current bias fields for magnetic printing |
| 12/30/1980 | CA1092451A1 Leader or trailer tape for a magnetic recording medium |
| 12/23/1980 | US4241367 Thin film magnetic head |
| 12/23/1980 | US4241366 Magnetic head loading apparatus |
| 12/23/1980 | US4241139 Polymeric protective layer |
| 12/23/1980 | CA1092237A1 Guide drum in a magnetic recording and/or reproducing apparatus |
| 12/23/1980 | CA1091919A1 Process for the preparation of ferromagnetic chromium dioxide |
| 12/16/1980 | US4240121 Broadband magnetic tape transducer head |
| 12/16/1980 | US4240120 Cassette-to-cassette duplicator |
| 12/16/1980 | US4239959 Perpetuation of information in magnetically recorded medium |
| 12/16/1980 | US4239835 Magnetic recording medium |
| 12/16/1980 | US4239828 In an envelope with a wiping fabric impregnated with an highly fluorinated polyether lubricant |
| 12/16/1980 | US4239637 Acicular particles of conventional magnetic material and a ferrite powder for magnetic tapes |
| 12/16/1980 | US4239587 Method of manufacturing a thin-film magnetic head with a nickel-iron pattern having inclined edges |
| 12/16/1980 | CA1091806A1 Magnetic coding process |
| 12/11/1980 | WO1980002769A1 Isolated multiple core magnetic transducer assembly |
| 12/10/1980 | EP0020177A1 Fixed disc head actuator assembly |
| 12/10/1980 | EP0020176A2 Disc, tape and hybrid disc-tape memory apparatus and drive assembly |
| 12/10/1980 | EP0019894A1 Magnetic recording medium and process for its preparation |
| 12/10/1980 | EP0019693A1 A magnetic head slider assembly |
| 12/09/1980 | US4238809 Servo track configuration for magnetic disk apparatus |
| 12/09/1980 | US4238808 Tape stop detecting mechanism |
| 12/09/1980 | US4238777 Drop-out detecting system for video recording magnetic tape |
| 12/09/1980 | US4238776 Recording device of a time lapse magnetic video recorder |
| 12/09/1980 | US4238548 Magnetic recording medium |
| 12/09/1980 | US4238341 Composition of magnetic recording media |
| 12/09/1980 | US4238215 Sputtering, borosilicate glass |
| 12/09/1980 | CA1091348A1 Method and apparatus for increasing the recording capacity of a disc |
| 12/09/1980 | CA1091347A1 Magnetic recording structure |
| 12/02/1980 | US4237506 Polymodal magnetic recording member |
| 12/02/1980 | US4237505 Combined recording and playback magnetic tape head with shield cases and a flat chip for controlling tape wrap angle |
| 12/02/1980 | US4237504 Linear actuator including limit stop assembly for magnetic disc drive |
| 12/02/1980 | US4237502 Disk drive system |
| 12/02/1980 | US4237501 Emergency head unload system for magnetic disk drive |
| 12/02/1980 | US4237500 Method of controlling the position of a write-read head and device for carrying out the method |
| 12/02/1980 | US4237399 Driving circuit for piezo-electric multimorph transducer |
| 12/02/1980 | US4237189 Polymodal magnetic recording media process for making and verifying the same and compositions useful therein |
| 12/02/1980 | CA1090555A1 Process for preparing ferromagnetic chromium dioxide |
| 11/27/1980 | WO1980002620A1 Microcrystalline thin strip for magnetic material with high magnetic permeability,process for producing same,and thin strip products |
| 11/26/1980 | EP0019535A1 Method of making a duplicate of an original magnetic record and duplicate magnetic record produced by said method |
| 11/26/1980 | EP0019083A1 Magnetic head-mounting-assemblies |