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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01/04/1977 | US4001463 Process and apparatus for the manufacture of rigid magnetic discs |
12/28/1976 | US4000513 Apparatus and method for data recording with peak shift compensation |
12/28/1976 | US4000336 Magnetic pigment dispersed in polyesterurethane binder |
12/28/1976 | US3999992 Photosensitive element with antihalation layer and magnetic recording strips containing in-benzene disulfofluoride to crosslink antihalation layer |
12/28/1976 | US3999286 Method of making multitrack heads |
12/21/1976 | US3999216 Material for magnetic transducer heads |
12/21/1976 | US3998989 Trifluorochloroethylene-vinyl chloride copolymer, tetrafluoroethylene telomer |
12/21/1976 | US3998160 Magnetic ink printing method |
12/14/1976 | US3997913 Electronic time compressor/expander utilizing magnetic storage |
12/07/1976 | US3996615 Rotary air bearing head with leading edge controlling air bearing |
12/07/1976 | US3996612 Test code generator |
12/07/1976 | US3996407 Pigment, silane, binder |
12/07/1976 | US3996395 Method of increasing the coercivity of magnetite films |
12/07/1976 | US3996095 Epitaxial process of forming ferrite, Fe3 O4 and γFe2 O3 thin films on special materials |
11/30/1976 | US3995317 Helical scan apparatus for video tape or the like and having rotating-head inclination-adjustment means |
11/30/1976 | US3995089 Magnetic recording media |
11/30/1976 | US3994819 Oxalates |
11/30/1976 | US3994716 Process for the production of finely divided cobalt powders |
11/23/1976 | US3994018 Rotary head assembly having resilient positioning and restraining means mounting the head |
11/23/1976 | US3994016 Head positioning servo system for disk drives |
11/23/1976 | US3993846 Magnetic recording medium |
11/23/1976 | US3993824 Recording member comprising a substrate with a magnetic lager on one surface and a lubricating lager on the opposed surface |
11/16/1976 | US3992576 Floating device for information disc apparatus |
11/09/1976 | US3990710 Coin-operated recording machine |
11/02/1976 | US3990109 Multiple flexible record storage disk apparatus having an access arm with enhanced disk stabilizing features |
11/02/1976 | US3990108 Magnetic tape speed control system |
11/02/1976 | US3990106 Dynamic negative pressure type floating head system |
10/19/1976 | US3987494 Portable magnetic tape player with handle constituting magnetic tape head indexing mechanism |
10/19/1976 | US3987490 Rotating read/write system for NRZI data |
10/19/1976 | US3987488 Multi-tracks magnetic head with single turn winding structure |
10/19/1976 | US3987487 Magnetic transducer with single turn winding structure |
10/19/1976 | US3987485 Magnetic head with thin film components |
10/19/1976 | US3987483 Magnetic recording disk and apparatus with slow motion mode |
10/19/1976 | US3987232 Carbonic acid ester lubricants |
10/19/1976 | US3986301 Apparatus for lapping the edges of a metal foil tape |
10/12/1976 | US3986210 Magnetic head device using printed circuit techniques |
10/12/1976 | US3986209 Magnetic read head with offset flux gaps |
10/12/1976 | US3986206 Magnetic recording medium with highly anisotropic particles |
10/12/1976 | US3986205 Dual particle population magnetic recording medium |
10/05/1976 | US3984874 High density magnetic recording and reproducing system |
10/05/1976 | US3984873 Head loading and unloading assembly for a magnetic disc drive having a rotary actuator |
10/05/1976 | US3984872 Load lever re-centering device |
10/05/1976 | US3984814 Retry method and apparatus for use in a magnetic recording and reproducing system |
10/05/1976 | US3984763 Device for the non-destructive measurement of the remanent flux density of magnetic recording media, especially magnetic discs |
10/05/1976 | US3984706 Electromagnetic actuator for voice coil |
10/05/1976 | US3983622 Method of manufacturing magnetic record/reproduce head |
09/28/1976 | US3983579 Two-channel and four-channel cartridge tape player |
09/28/1976 | US3983550 Aural-visual product display |
09/28/1976 | US3983302 Magnetic recording medium |
09/28/1976 | US3982318 Magnetic transducer head core manufacturing method |
09/21/1976 | US3982277 Timing-error compensation for low-speed tape systems |
09/21/1976 | US3982276 Method of copying magnetic recordings provided on a magnetizable medium having a greater coercive force before than after recording |
09/21/1976 | US3981570 Motion picture projector device as audio-visual aid and audio-visual system using the same |
09/14/1976 | US3980611 Silica, kaolin, china clay, an aluminosilicate, diatomaceous earth, or calcium phosphate |
09/07/1976 | US3979775 Magnetoresistive multitransducer assembly with compensation elements for thermal drift and bias balancing |
09/07/1976 | US3979773 Magnetic recording and reproducing apparatus |
09/07/1976 | US3979599 Operatively interlocked electronic system |
09/07/1976 | US3979541 Thin base self-tracking recording tape |
09/07/1976 | US3979310 Thermal decomposition of chromium chromate, antimony |
08/31/1976 | US3978523 Multi-channel dual-gap magnetic head |
08/31/1976 | US3978522 Method and apparatus for mounting a cassette record-playback head |
08/31/1976 | US3978520 Magnetic head cleaning tape and method |
08/31/1976 | US3977985 Magnetic recording medium comprising cobalt or cobalt alloy coated particles of spicular magnetite |
08/24/1976 | US3977024 Or reproducing apparatus employing a rotating recording medium |
08/24/1976 | US3976929 Device for the exact positioning of a movable part |
08/24/1976 | US3976822 Sulfonium |
08/17/1976 | US3975774 Method and apparatus for loading flexible magnetic recording discs to transducing heads |
08/17/1976 | US3975773 Thin film magnetic heads |
08/17/1976 | US3975772 Double shielded magnetorestive sensing element |
08/17/1976 | US3975771 Magnetic head devices enclosed by a shield having superposed layers and an intervening layer of solder |
08/17/1976 | US3975770 Transducer assembly for a disc drive |
08/17/1976 | US3975769 Storage device utilizing flexible magnetic disks |
08/17/1976 | US3975768 Removable cartridge flexible disc memory apparatus |
08/17/1976 | US3975574 Magnetic coatings for credit cards |
08/17/1976 | US3975569 Ferrite, dispersant, synthetic polymer |
08/17/1976 | US3975217 Finely divided magnetic cobalt powder |
08/17/1976 | US3975197 Coated aluminum substrates |
08/10/1976 | US3974524 Magnetic storage apparatus employing flexible record disks with peripheral disk-identification means |
08/10/1976 | US3974523 Speed invariant decoding of digital information from a magnetic tape |
08/10/1976 | US3974079 Ferromagnetism, oxidation |
08/10/1976 | US3973920 Magnetic recording medium |
08/10/1976 | US3973839 Special effects generation and control system for motion pictures |
08/03/1976 | US3973274 Method and apparatus for mounting and positioning magnetic recording heads |
08/03/1976 | US3973273 Magnetic disk storage apparatus |
08/03/1976 | US3973272 Disc receiver interlock for disc recorders |
08/03/1976 | US3973183 Method and apparatus for detecting uneven magnetic field by a change in resistance of semiconductor element |
08/03/1976 | US3973182 Method and apparatus for detecting uneven magnetic field by hall effect in semiconductor |
08/03/1976 | US3973080 Playback device for a disc-shaped record carrier with transducer lifting for changing playback groove for fast, slow or stop effects |
08/03/1976 | US3973072 Magnetic recording medium having binder-free phosphide coating |
08/03/1976 | US3972620 Azimuth angle measuring apparatus |
07/20/1976 | US3971070 Heating means for heating a magnetic tape above its Curie point prior to duplication by contact with a master tape |
07/20/1976 | US3971069 Thermal printing apparatus |
07/20/1976 | US3969831 Teaching system |
07/13/1976 | US3969771 Magnetic head with shield plates for respective head elements |
07/13/1976 | US3969770 Two-track bidirectional cassette head for data handling apparatus |
07/13/1976 | US3969769 Magneto-resistive head |
07/13/1976 | US3969768 Magnetic disk head carriage |
07/13/1976 | US3969765 Device for the thermomagnetic recording of information |
07/13/1976 | US3968565 Method of manufacturing a device comprising a semiconductor body |
07/06/1976 | US3968519 Amplifier with howling-preventing circuit |