| 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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| 12/12/1990 | EP0401689A1 Biaxially oriented polyester film  | 
| 12/12/1990 | EP0257042A4 Method and apparatus using a stationary saturable member for transferring signals relative to a magnetic storage medium  | 
| 12/12/1990 | EP0248897A4 Method and apparatus for magnetic transducing  | 
| 12/12/1990 | CN1047751A Circuit of command of modulation of magnetic field or enregistering of magnet-optical  | 
| 12/12/1990 | CN1047750A Method and apparatus for recording signals on a record carrier, measurement method and measurement device for use in the recording method and the recording apparatus, and record carrier  | 
| 12/12/1990 | CN1047749A Recording medium, recording and reproducing device and recording method  | 
| 12/12/1990 | CN1047748A Metal-in-gap magnetic head  | 
| 12/11/1990 | US4977549 Write and erase magnetic bias field switching system for a magneto-optic disk drive  | 
| 12/11/1990 | US4977472 Servo address system  | 
| 12/11/1990 | US4977471 Method for servo formatting disc media for a floppy disk drive  | 
| 12/11/1990 | US4977470 Track-following control system for magnetic disk drive  | 
| 12/11/1990 | US4977468 Tape edge detecting method and device therefor  | 
| 12/11/1990 | US4977419 Self-clocking encoding/decoding film information exchange system using dedicated magnetic tracks on film  | 
| 12/11/1990 | US4977230 Heat-resistant film or sheet  | 
| 12/11/1990 | US4977040 Magnetic card  | 
| 12/11/1990 | US4977021 In situ polymerization of trioxane  | 
| 12/11/1990 | US4976992 First applying solvents to edge zones to prevent spreading of extruded coating to them; uniform thickness  | 
| 12/11/1990 | US4976989 Method for preparing a magnetic recording medium  | 
| 12/06/1990 | DE4017811A1 Support system for carrying flying magnetic disc heads - uses head support in conjunction with air stream to control clearance between head and disc  | 
| 12/05/1990 | EP0401041A2 Recording medium, recording and reproducing device and recording process  | 
| 12/05/1990 | EP0401000A2 Plate-like magnetite particles and process for producing the same  | 
| 12/05/1990 | EP0400984A2 Magnetic recording media  | 
| 12/05/1990 | EP0400970A2 Perpendicular magnetic recording medium and production method thereof  | 
| 12/05/1990 | EP0400966A2 Method of manufacturing a magnetic head  | 
| 12/05/1990 | EP0400946A2 Head mounting structure for high capacity disk drive  | 
| 12/05/1990 | EP0400923A2 A disk drive unit and method of control  | 
| 12/05/1990 | EP0400793A2 Transducer with improved inductive coupling  | 
| 12/05/1990 | EP0400780A1 Microlithographic method for producing thick, vertically-walled photoresist patterns  | 
| 12/05/1990 | EP0400726A1 Method and apparatus for recording signals on a record carrier, measurement method and measurement device for use in the recording method and the recording apparatus, and record carrier  | 
| 12/05/1990 | EP0400678A2 Signal recording/reproducing apparatus  | 
| 12/05/1990 | EP0400242A1 Metal-in-gap magnetic head  | 
| 12/05/1990 | EP0400164A1 Method and device for positioning a magnetic head at a magnetic-film memory  | 
| 12/05/1990 | EP0400142A1 Thin film magnetic element having a rhombic shape.  | 
| 12/05/1990 | EP0181405B1 Dielectric ceramic material  | 
| 12/05/1990 | CN2067023U Recorder with endless tape  | 
| 12/05/1990 | CN1047583A Copper-mixed silicon-wrapped magnetic recording material and making method  | 
| 12/05/1990 | CN1010718B Rotary magnetic head device  | 
| 12/04/1990 | US4975795 Electrical connection for a self-loading head assembly for disk drives  | 
| 12/04/1990 | US4975794 Bernoulli effect transducer coupler  | 
| 12/04/1990 | US4975791 Recording system having head transducers with controlled skew  | 
| 12/04/1990 | US4975398 High impact strength ceramic composite head pad material  | 
| 12/04/1990 | US4975339 Magneto-optical recording medium with at least one protective layer containing platinum and/or palladium  | 
| 12/04/1990 | US4975324 Used in magnetic/optical recording media, computer, video tapes  | 
| 12/04/1990 | US4975322 Magnetic recording medium  | 
| 12/04/1990 | US4975214 Magnetic iron oxide containing silicon element and process for producing same  | 
| 12/04/1990 | CA1277419C Magnetic data storage media  | 
| 12/04/1990 | CA1277418C Video signal recording and/or reproducing apparatus  | 
| 12/03/1990 | WO1990015409A1 Magnetic field modulation control circuit for recording a magneto-optic memory  | 
| 12/03/1990 | CA2033344A1 Magnetic field modulation control circuit for recording data into a magneto-optic memory  | 
| 12/02/1990 | CA2018057A1 Recording medium, recording and reproducing device and recording process  | 
| 11/29/1990 | WO1990014661A1 Non-contact magnetic head assembly for a flexible medium disk drive  | 
| 11/29/1990 | WO1990014660A1 Helical scan-type rotary head drum unit  | 
| 11/29/1990 | WO1990014659A1 Magnetic latch for disk drive actuator  | 
| 11/28/1990 | EP0399848A2 Magnetic recording medium and method of manufacturing the same  | 
| 11/28/1990 | EP0399800A2 Thin film magnetic head manufacturing method  | 
| 11/28/1990 | EP0399747A2 Substrate used for magnetic disk and magnetic recording medium using the substrate  | 
| 11/28/1990 | EP0399689A2 Magneto-optical disc recording apparatus  | 
| 11/28/1990 | EP0399517A2 Rotary head cylinder for video tape recorder  | 
| 11/28/1990 | EP0250560A4 Magnetic recorder medium having discrete magnetic storage and saturable layers and magnetic signal processing apparatus and method using the medium  | 
| 11/28/1990 | EP0169910B1 Rotary head type magnetic image recorder/reproducer  | 
| 11/28/1990 | EP0156916B1 Photomagnetic recording and reproducing apparatus having device for detecting direction of magnetization of magnetic recording medium  | 
| 11/28/1990 | EP0139021B1 Thermomagnetic optical recording method  | 
| 11/28/1990 | CN1010622B Diskette having wear-resistant magnetizable layer  | 
| 11/27/1990 | US4974189 Magnetic tape packet assembler/disassembler safeguards existing data with pretries during appends  | 
| 11/27/1990 | US4974111 Method and apparatus for electronically processing and rerecording recorded video signals  | 
| 11/27/1990 | US4974110 Thin film magnetic head for perpendicular recording and reproducing  | 
| 11/27/1990 | US4974109 Hard disk drive employing a reference track to compensate for tracking error  | 
| 11/27/1990 | US4974106 Non-contact magnetic head assembly for a flexible medium disk drive  | 
| 11/27/1990 | US4974105 Hand-held transducing device  | 
| 11/27/1990 | US4974100 Endless tapedrive system  | 
| 11/27/1990 | US4973915 Feed forward differential equalizer for narrowing the signal pulses of magnetic heads  | 
| 11/27/1990 | US4973525 Metal-insulator composites having improved properties and method for their preparation  | 
| 11/27/1990 | US4973515 Stretched minute cellular polyester  | 
| 11/27/1990 | US4973496 Method for texturing magnetic disks  | 
| 11/27/1990 | US4973123 Electro-optical rotary coupling suitable for tape scanners  | 
| 11/22/1990 | EP0397903A1 Rotary disc actuator for a magnetic-disc file  | 
| 11/22/1990 | EP0397896A1 Low profil magnetic head suspension  | 
| 11/22/1990 | EP0397885A1 Magnetic powder, its production method, magnetic recording medium and magnetic recording method  | 
| 11/22/1990 | EP0397713A1 Contoured head assembly for use in a cassette loaded recorder.  | 
| 11/22/1990 | DE4015682A1 Position control circuitry for read-write heads with magnetic discs - uses electronic PID circuits with variable gain amplifies in conjunction with reference marks on disc  | 
| 11/22/1990 | DE4014107A1 Construction of magnetic layer memories and substrates - uses organically modified silicate(s) or organically modified ceramics  | 
| 11/22/1990 | DE4009476A1 Magnetplattengeraet-steuervorrichtung Magnetplattengeraet-control device  | 
| 11/21/1990 | CN2066178U Language studying record device  | 
| 11/20/1990 | WO1990014662A1 High molecular weight binders for magnetic recording media  | 
| 11/20/1990 | US4972396 Multiple independently positionable recording-reading head disk system  | 
| 11/20/1990 | US4972395 Opto-magnetic recording apparatus for sequentially driving optical head drive means and biasing magnetic field generation means  | 
| 11/20/1990 | US4972337 Device for controlling rotation of a magnet used in a magneto-optical recording system  | 
| 11/20/1990 | US4972336 Read while write magnetic head assembly  | 
| 11/20/1990 | US4972287 Having a solenoidal energizing coil  | 
| 11/20/1990 | US4972286 Grounding pole structures in thin film mganetic heads  | 
| 11/20/1990 | US4972285 Cobalt, niobium, zirconium magnetic head, v-shaped magnetic films, bonding to glass  | 
| 11/20/1990 | US4972284 Deposited permanent magnet for hard and easy axes biasing of a magnetoresistive head  | 
| 11/20/1990 | US4972283 Rotary head drum for a VCR  | 
| 11/20/1990 | US4972282 Head carriage mechanism of a magentic disc drive including a wear resistance, low friction slide member  | 
| 11/20/1990 | US4972281 Magnetic head supporting device for flexible recording medium  | 
| 11/20/1990 | US4972280 Support construction for the transducer of a magnetic head assembly  | 
| 11/20/1990 | US4972279 Microminimonolithic magnetic head slider  | 
| 11/20/1990 | US4971947 Superconductor magnetic reading and writing heads  | 
| 11/20/1990 | US4971932 Multilayer magnetic recording media disks, glass ceramics  | 
| 11/20/1990 | US4971896 Method for forming thin film pattern and method for fabricating thin film magnetic head using the same  |