| 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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| 06/06/1989 | US4837046 Spraying aqueous oxidizing agent solution on substrate in deoxidized atmosphere, simultaneously supplying aqueous deoxidized solution containing ferrous ions |
| 06/06/1989 | US4836944 Lubricant |
| 06/06/1989 | US4835909 Surface treatment of disk-shaped nickel-plated aluminum substrates |
| 06/01/1989 | WO1989005027A1 Laminated sendust metal-in-gap video head |
| 06/01/1989 | DE3837724A1 Carbon material and process for its production |
| 05/31/1989 | EP0318228A1 Composite material and filler therefor |
| 05/31/1989 | EP0318038A2 Circuit for separating simultaneously reproduced PCM and ATF signals having at least partially overlapping frequency bands |
| 05/31/1989 | EP0318004A2 Magnetic recording medium |
| 05/31/1989 | EP0317892A1 Procedure for machining a magnetic head supporting plate |
| 05/31/1989 | EP0317633A1 Vertical magnetic recording/reproducing head |
| 05/31/1989 | CN2038656U Recorder for re-recording use |
| 05/31/1989 | CN2038655U Radio-recorder for studying language |
| 05/30/1989 | US4835647 Stretched surface recording medium |
| 05/30/1989 | US4835646 Magnetic head adjusting device |
| 05/30/1989 | US4835645 Rotary magnetic head assembly |
| 05/30/1989 | US4835642 Magnetic head assembly for double-sided disk drive apparatus |
| 05/30/1989 | US4835641 Magnetic disk apparatus |
| 05/30/1989 | US4835640 Magnetic head having a stabilized zirconia slider |
| 05/30/1989 | US4835631 Apparatus for controlling playback head tracking for rotary recording medium using average peak envelope position |
| 05/30/1989 | US4835628 Apparatus and method for formatting and recording digital data on magnetic tape |
| 05/30/1989 | US4835361 Laser machining for producing very small parts |
| 05/30/1989 | US4835070 Magnetic recording medium and method of producing the same |
| 05/30/1989 | US4835069 Magnetic recording medium |
| 05/30/1989 | US4835068 Iron oxide nitride |
| 05/30/1989 | US4835049 Magnetic recording medium |
| 05/30/1989 | US4835032 Magnetic recording medium and recording/reproducing method therefor |
| 05/30/1989 | US4834813 Wear-resistant alloy of high permeability and methods of producing the same |
| 05/30/1989 | CA1255000A1 Perpendicular magnetic recording medium and method of making same |
| 05/24/1989 | EP0317471A2 Solid state magnetic head with improved biasing |
| 05/24/1989 | EP0317319A2 Amorphous oxide magnetic material |
| 05/24/1989 | EP0317013A1 Apparatus for reproducing a binary digital signal, comprising a read head having a specially selected gap length |
| 05/24/1989 | EP0316880A2 A magnetic head positioning mechanism for a magnetic disk device |
| 05/24/1989 | EP0316758A2 Method for the automatic optimization of the recording current for the recording of a video signal, and device for carrying out the method |
| 05/24/1989 | EP0316566A2 Method for the acquisition of a control signal for automatic track following |
| 05/23/1989 | US4833560 Self-biased magnetoresistive reproduce head |
| 05/23/1989 | US4833559 Capacitor multiplexing for magnetoresistive heads |
| 05/23/1989 | US4833558 Head positioning assembly |
| 05/23/1989 | US4833556 Low drag stabilizer device for stabilizing the interface between a transducer and a moving medium |
| 05/23/1989 | US4833554 Hard disk drive module and receptacle therefor |
| 05/23/1989 | US4833551 Dual head servo system and method for a magnetic disk |
| 05/23/1989 | US4833550 Magnetic disk device having a mechanism for removing an adhesion between a magnetic head and a magnetic disk |
| 05/23/1989 | US4833418 Compensation circuit for nullifying differential offset voltage and regulating common mode voltage of differential signals |
| 05/23/1989 | US4833044 Film type magnetic recording medium |
| 05/23/1989 | US4833043 Amorphous magneto optical recording medium |
| 05/23/1989 | US4833031 Protective coating of carbon and organic compound |
| 05/23/1989 | US4833020 Multilayer-high density disks |
| 05/23/1989 | US4833019 Magnetic recording tape comprising a support film having a high transverse direction modulus |
| 05/23/1989 | US4833001 Glass substrate for a magnetic disc and process for its production |
| 05/23/1989 | US4832674 Pulley and press-fit pulley structure |
| 05/23/1989 | US4831961 Magnetic liquid application method and apparatus |
| 05/23/1989 | CA1254556A1 Fluoropolyethers containing end groups endowed with anchoring capacity |
| 05/23/1989 | CA1254385A1 Magneto-optical recording medium having amorphous artificially layered structure of rare earth element and transition metal element |
| 05/18/1989 | WO1989004535A1 Magnetic transducer |
| 05/18/1989 | WO1989004534A1 Method and device for magnetic recording |
| 05/18/1989 | DE3737452A1 Magnetic data storage device with a tracking system |
| 05/17/1989 | EP0316188A2 Method and apparatus for direct overwriting of digital data recorded on magneto-optical recording media including a direct overwrite magneto-optic system for strip erasing and recording elongated domains and a single-head, direct overwrite magneto-optic system |
| 05/17/1989 | EP0316084A2 Data storage apparatus |
| 05/17/1989 | CN1032987A Device for reading information from magnetic recording medium |
| 05/16/1989 | US4831608 Multi-layer high density information recording carrier having a non-alkali inorganic glass protective layer |
| 05/16/1989 | US4831481 Composite magnetic head and method of manufacturing the same |
| 05/16/1989 | US4831480 Liquid crystal polyester |
| 05/16/1989 | US4831479 Pivot support structure for magnetic head assembly |
| 05/16/1989 | US4831471 System for positioning a magnetic head at a center line of a floppy disk track |
| 05/16/1989 | US4831465 Mode for writing information on a magnetic recording carrier |
| 05/16/1989 | US4831315 Transducer positioning apparatus with multiple modes of motion |
| 05/16/1989 | US4830923 Magnetic recording medium |
| 05/16/1989 | US4830906 Magnetic recording medium |
| 05/16/1989 | US4830896 Method of stabilizing magnetic metal pigment |
| 05/16/1989 | US4830697 Method and apparatus for manufacturing a magnetic recording disk |
| 05/16/1989 | US4830685 Wear-resistant alloy of high permeability and method of producing the same |
| 05/16/1989 | US4829799 Method of manufacturing substrate for memory disk |
| 05/16/1989 | US4829659 Process for the production of a magnetic hea making it possible to simplify the production of electrical connections |
| 05/16/1989 | US4829658 Method for manufacturing terminal contacts for thin-film magnetic heads |
| 05/16/1989 | CA1254300A1 Substrate for rigid disk storage media and method of manufacture |
| 05/16/1989 | CA1254299A1 Magnetic transducer head |
| 05/16/1989 | CA1254298A1 Method and apparatus for reading recorded data by a magnetoresistive head |
| 05/16/1989 | CA1254037A1 Magneto-optical medium |
| 05/10/1989 | EP0315624A2 Process for cleaning magnetic heads and device for carrying out the process |
| 05/10/1989 | EP0315361A2 Magnetic head for perpendicular magnetic recording system and process |
| 05/10/1989 | EP0315258A1 Device for reading information from a magnetic recording medium |
| 05/10/1989 | EP0315063A2 Article having indicia-receiving layer |
| 05/10/1989 | EP0315016A2 Magnetic recording medium |
| 05/10/1989 | EP0314879A2 Control of relative position between a magnetic head and a recording medium |
| 05/10/1989 | CN1032880A 旋转变压器 Resolver |
| 05/10/1989 | CN1004178B Double-cassette tape recorder |
| 05/09/1989 | US4829401 Rotating transformer with foil windings |
| 05/09/1989 | US4829396 Magnetic disc apparatus for deflecting magnetic heads from contact with the recording disc surface |
| 05/09/1989 | US4829395 Load beam/assembly |
| 05/09/1989 | US4829394 Device for detecting reference position of magnetic head |
| 05/09/1989 | US4829392 Magnetic recording apparatus |
| 05/09/1989 | US4829388 Magnetic recording apparatus |
| 05/09/1989 | US4829267 Automatic DC restorer stage for servo data amplifier |
| 05/09/1989 | US4829249 Method of inspecting magnetic disks for surface defects |
| 05/09/1989 | US4829214 Cathode ray tube degaussing control circuit |
| 05/09/1989 | US4828966 Method for producing hall effect sensor for magnetic recording head |
| 05/09/1989 | US4828925 High and low melting esters as lubricants |
| 05/09/1989 | US4828924 Lubricant in magnetic layer |
| 05/09/1989 | US4828919 Vapor deposited mixture of organic and ferromagnetic materials |
| 05/09/1989 | US4828916 Plate-like magnetoplumbite type ferrite particles for magnetic recording and magnetic recording media using the same |
| 05/09/1989 | US4828905 Multilayer, metal, metal oxide or nitride, ceramics or glass |