| Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826) |
|---|
| 02/13/1990 | US4901303 Photo-electro-magnetic disc device |
| 02/13/1990 | US4901300 Method of and apparatus for recording an information signal |
| 02/13/1990 | US4901297 Optical magnetic recording and reproducing method and apparatus capable of prolonging a recording time |
| 02/13/1990 | US4901185 Magnetic head device used with a rigid magnetic disk providing a constant distance between the magnetic disk and a magnetic gap of the magnetic head device |
| 02/13/1990 | US4901179 Magnetic head having a laminated structure |
| 02/13/1990 | US4901178 Thin film magnetic head |
| 02/13/1990 | US4901177 Magnetic read head for a very narrow track |
| 02/13/1990 | US4901176 Magnetic head support assembly for floppy device |
| 02/13/1990 | US4901175 Magnetic head supporting device |
| 02/13/1990 | US4901169 Data recording apparatus able to accurately access a floppy disk regardless of recording density |
| 02/13/1990 | US4901167 Loop bin |
| 02/13/1990 | US4901166 Tracking control for VTR editing employing previously recorded tracking information |
| 02/13/1990 | US4901159 Magnetic recording apparatus for recording video and two kinds of audio signals |
| 02/13/1990 | US4901016 Device having a magnetic head for measuring magnetization characteristics of a magnetic thin film |
| 02/13/1990 | US4900650 Mask plating of a thin film head |
| 02/13/1990 | US4900631 Copolymer of vinyl chloride, sulfur, or phosphorus containing compound and hydroxy containing compound |
| 02/13/1990 | US4900622 Magnetic recording medium |
| 02/13/1990 | US4900464 Particles containing iron carbide |
| 02/13/1990 | US4900397 Production of magnetic recording media |
| 02/13/1990 | US4899434 Method of making a thin film magnetic head with a leveler layer and superstrate |
| 02/13/1990 | CA1265867A1 Slider with anti-stiction boss |
| 02/13/1990 | CA1265866A1 Method and apparatus for detecting a dead zone in the transfer function of a signal processing system |
| 02/08/1990 | WO1990001205A1 Method and apparatus for mounting a magnetic head on a suspension arm |
| 02/07/1990 | EP0354041A2 Methods for forming magnetic coatings using trioxane and magnetic recording media having such coatings |
| 02/07/1990 | EP0353998A1 Magnetic Head |
| 02/07/1990 | EP0353911A2 Flux spreading thin film magnetic devices |
| 02/07/1990 | EP0353897A2 Control system for a disk drive head |
| 02/07/1990 | EP0353885A2 Perpendicular anisotropy in thin film devices |
| 02/07/1990 | EP0353858A1 Electronic editing system of recording and reproducing apparatus |
| 02/07/1990 | EP0353852A2 Method and circuitry to suppress additive disturbances in data channels containing MR sensors |
| 02/07/1990 | EP0353767A2 Detecting sector servo information in a disk system |
| 02/07/1990 | EP0353455A2 Information storage device with at least one storage disc and one servo disc as well as method for operating the device |
| 02/07/1990 | EP0353304A1 Thin-film magnetic head and method of producing the same |
| 02/06/1990 | US4899241 Method of manufacturing a magnetic head having a thin film in a portion of its core |
| 02/06/1990 | US4899240 Biasing for a UMR head |
| 02/06/1990 | US4899239 Auto-reverse tape recorder of the head turning over type |
| 02/06/1990 | US4899230 Taped data copying utilizing multiple addressable memories |
| 02/06/1990 | US4899037 Magnetic information-recording element and method of manufacture |
| 02/06/1990 | US4898922 Urethane resins |
| 02/06/1990 | US4898774 Corrosion and wear resistant magnetic disk |
| 02/06/1990 | US4898753 Having surface protrusions; coating polyimide film with polyamic solution containing silica, heat treatment |
| 02/06/1990 | US4898705 Method for producing synthetic resin union joint |
| 02/06/1990 | US4897915 Process for producing magnetic head of floating type |
| 02/06/1990 | CA1265615A1 Digitally responsive system for positioning a transducer of a storage apparatus |
| 02/06/1990 | CA1265614A1 Apparatus employing adjustable modulation index for reducing cross talk between recorded audio and video signals |
| 02/06/1990 | CA1265414A1 Silane dispersing agent for magnetic media |
| 02/01/1990 | DE3924449A1 Magnetic recording medium - has magnetic layer contg. or coated with long chain ester cpd with branched chain |
| 02/01/1990 | DE3920504A1 Magnetic head |
| 01/31/1990 | EP0353094A2 Aromatic imide polymer film for magnetic recording material and process for producing the same |
| 01/31/1990 | EP0353077A1 Information storage disc transducer position control system using last step damping |
| 01/31/1990 | EP0352980A2 Controlling dynamic tracking heads of digital video tape recorders |
| 01/31/1990 | EP0352889A2 Magnetic head and method for manufacturing same |
| 01/31/1990 | EP0352757A2 Magnetic recording medium |
| 01/31/1990 | EP0352422A2 Process for the production of fine particles of alkaline earth and lead ferrites for data carriers |
| 01/31/1990 | CN2052138U Cycle cassette tape |
| 01/31/1990 | CN1039317A Magneto-optical recorder with magnetic-field modulation |
| 01/30/1990 | US4897759 Method and apparatus for erasing information from magnetic material |
| 01/30/1990 | US4897749 Combination probe and ring head for vertical recording |
| 01/30/1990 | US4897748 Magnetic head for azimuth recording in a high density magnetic recording system |
| 01/30/1990 | US4897747 Write/read head including monocrystalline magnetic thin films protected by a coating having hardened and lubricating zones |
| 01/30/1990 | US4897746 Magnetic head device |
| 01/30/1990 | US4897745 Method of adjusting the gaps of two magnetic heads arranged on one head disc, and head disc carrying two magnetic heads |
| 01/30/1990 | US4897743 Method and apparatus for releasing a magnetic head |
| 01/30/1990 | US4897740 Recording/reproducing system for a magnetic recording medium including synchronization detecting circuit |
| 01/30/1990 | US4897739 Multi-channel recording apparatus using a plurality of heads in turn |
| 01/30/1990 | US4897590 Track access apparatus in a magnetic recording/playback system |
| 01/30/1990 | US4897320 Protective layer composed of a mixture of a rare earth metal and a dielectric material |
| 01/30/1990 | US4897318 Laminated magnetic materials |
| 01/30/1990 | US4897211 Containing perfluoropolyoxyalkylene groups |
| 01/30/1990 | US4897134 Ultrasonic welding hubs to magnetic recording diskettes |
| 01/30/1990 | US4896417 Method of producing a thin film magnetic head |
| 01/30/1990 | CA1265296A1 Fluorinated polymers and resins prepared therefrom |
| 01/30/1990 | CA1265242A1 Magnetic disk apparatus |
| 01/30/1990 | CA1265241A1 Disk drive positioning system providing passive head crash protection |
| 01/30/1990 | CA1265239A1 Methods of recording and reproducing audio signals |
| 01/25/1990 | WO1990000796A1 Magnetic recording/reproducing apparatus |
| 01/25/1990 | WO1990000795A1 A cleaning cassette for cassette tape recorders |
| 01/25/1990 | WO1990000794A1 Thin-film magnetic head with magnetic arms composed of several individual magnetic layers |
| 01/25/1990 | WO1990000793A1 Device made of magnetic material with anti-wear layer and applications to a recording-reading head and to a recording disc |
| 01/25/1990 | WO1990000771A1 Data security device |
| 01/24/1990 | EP0352099A2 An external magnetic field device for a magnetooptical information recording and reproducing apparatus |
| 01/24/1990 | EP0351888A2 Disk unit |
| 01/24/1990 | EP0351837A2 Read/write head slider with medium access aperture |
| 01/24/1990 | EP0351815A2 Perpendicular magnetic recording medium, method for its manufacturing and method for recording and reproducing |
| 01/24/1990 | EP0351775A1 Manufacturing process of magnetic strontiumhexaferrite powder |
| 01/24/1990 | EP0198841B1 Track post-control system for a magnetic tape unit with transverse track recording |
| 01/23/1990 | US4896240 Magnetic disk having an index area and a limited number of radially extending servo sections |
| 01/23/1990 | US4896239 Bi-compliant rotor stepper motor for an actuator in a disc drive |
| 01/23/1990 | US4896235 Magnetic transducer head utilizing magnetoresistance effect |
| 01/23/1990 | US4896233 Head supporting mechanism for a magnetic disk apparatus in which a head slider is inclined with respect to a gimbal spring |
| 01/23/1990 | US4896228 Magnetic disc apparatus having improved head position control |
| 01/23/1990 | US4896220 Magnetic recording method and magnetic recording head used therefor |
| 01/23/1990 | US4895764 Magnetic recording media |
| 01/23/1990 | US4895763 Particles have organic silazane coating |
| 01/23/1990 | US4895762 Magnetic recording material |
| 01/23/1990 | US4895758 Disks or tape for high density recording |
| 01/23/1990 | US4895098 Lubricant applicator |
| 01/23/1990 | CA1264850A1 Tracking control apparatus |
| 01/18/1990 | DE3922912A1 Magnetic recording medium |
| 01/18/1990 | DE3922689A1 Magnetic recording plate, and process for the production thereof |