| 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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| 05/09/1989 | US4828903 Magnetic recording disk |
| 05/09/1989 | US4828899 Ferromagnetism, thin films, radiation curable, oxidation resistanec, lubricants, projections |
| 05/09/1989 | US4828895 Arc-shaped protrusion of chromium or chromium dioxide |
| 05/09/1989 | US4828779 Coating method |
| 05/09/1989 | US4828662 Electrolytic stripping of cobalt |
| 05/09/1989 | CA1253962A1 Magnetoresistive read transducer |
| 05/09/1989 | CA1253961A1 Expandable suspension for supporting a slider and moving it to the disk in a data recording disk file |
| 05/05/1989 | WO1989004040A1 Servo pattern |
| 05/05/1989 | WO1989004039A1 Magnetic read/write head with abrasion-resistant layer and process for making it |
| 05/05/1989 | WO1989004038A1 Process for detecting the end of polishing of a thin-layer magnetic head |
| 05/05/1989 | WO1989004037A1 Magnetic recording/reproducing head and process for making it. |
| 05/03/1989 | EP0314557A2 Recording/reproducing magnetic head including a superconductor material |
| 05/03/1989 | EP0314556A1 Video record/read head, production process and apparatus for carrying out this process |
| 05/03/1989 | EP0314456A2 Apparatus and method for recording and/or reproducing a digital signal |
| 05/03/1989 | EP0314424A2 Magneto-optic recording medium |
| 05/03/1989 | EP0314360A2 Pulse conditioning circuit |
| 05/03/1989 | EP0314343A2 Magnetoresistive read transducer assembly |
| 05/03/1989 | EP0314172A2 Film magnetic head |
| 05/03/1989 | EP0314111A2 Storage apparatus including head drive control |
| 05/02/1989 | US4827362 Magnetic disk device having compensation for dimensional change |
| 05/02/1989 | US4827361 Head clogging detector for use in a video tape recorder |
| 05/02/1989 | US4827360 Rotary transformer with winding to cancel crosstalk |
| 05/02/1989 | US4827357 Apparatus for copying modulated video signals from recording medium to recording medium including color and chroma correction |
| 05/02/1989 | US4827218 Linear magnetoresistance-effect sensor with semiconductor and ferrimagnetic layers and its application in a magnetic-domain detector |
| 05/02/1989 | US4827162 Controlled drag for magnet actuator |
| 05/02/1989 | US4826739 Magnetic recording medium |
| 05/02/1989 | US4826737 With magnesium and zinc; melting, degassing, filtering, casting, hot rolling, cold rolling, stamping, creep annealing, machining, lapping |
| 05/02/1989 | US4826671 Preparation of acicular α-Fe2 O3 |
| 05/02/1989 | US4825984 Visco-elastic couple for magnet actuator |
| 05/02/1989 | US4825680 Method of manufacturing metal substrates for disk for memory storage media |
| 05/02/1989 | US4825532 Method for making a multi-head magnetic head assembly |
| 05/02/1989 | CA1253618A1 Return-to-zero magnetic recording system |
| 05/02/1989 | CA1253476A1 Tape cassette rewinding machine |
| 04/27/1989 | DE3835613A1 Magnetic recording medium for a video tape recorder, and process for the preparation thereof |
| 04/27/1989 | DE3834221A1 Magnetic head and process for its production |
| 04/26/1989 | EP0313139A1 Rotating transformer |
| 04/26/1989 | EP0313063A2 Magnetic record medium |
| 04/26/1989 | EP0312977A2 Magnetic recording medium |
| 04/26/1989 | EP0312701A2 Microminimonolithic magnetic head slider |
| 04/26/1989 | EP0312644A1 Head tracking system |
| 04/26/1989 | EP0312616A1 Polyester film and magnetic recording medium |
| 04/26/1989 | CN1032611A Apparatus for digital signal playback |
| 04/26/1989 | CN1032600A Data storage apparatus |
| 04/26/1989 | CN1032598A 磁记录介质 Magnetic recording media |
| 04/26/1989 | CN1032597A Magneto-optical recording apparatus and energizing circuit for use in such magneto-optical recording apparatus |
| 04/26/1989 | CN1004036B Driving device for disk drive |
| 04/26/1989 | CN1004035B Thin film magnetic head and method of manufacturing thereof |
| 04/25/1989 | US4825428 Optomagnetic recording, reading and erasing method and implementing apparatus which permits overwriting of previously recorded information |
| 04/25/1989 | US4825403 Apparatus guaranteeing that a controller in a disk drive system receives at least some data from an invalid track sector |
| 04/25/1989 | US4825379 Method and apparatus for processing waveform records for jitter elimination prior to averaging in determining signal to noise ratio |
| 04/25/1989 | US4825331 Tape degausser |
| 04/25/1989 | US4825325 Magnetoresistive read transducer assembly |
| 04/25/1989 | US4825324 Still video camera with continuous picture-taking mode |
| 04/25/1989 | US4825321 Modular unitary disk file subsystem having increased data storage capacity |
| 04/25/1989 | US4825319 Cartridge-shaped cleaning device |
| 04/25/1989 | US4825318 Compound read/write element for rigid magnetic disk files |
| 04/25/1989 | US4825313 Method for adjustably positioning a transducer for a disc drive |
| 04/25/1989 | US4825311 Magnetic reproducing apparatus with head positioning circuit |
| 04/25/1989 | US4825310 Method and apparatus for recording servo synchronization information |
| 04/25/1989 | US4825300 Magnetic video recording system and method with horizontal synchronization interval alignment |
| 04/25/1989 | US4824731 Polyimide |
| 04/25/1989 | US4824724 Magnetic recording medium |
| 04/25/1989 | US4824708 Process for producing magnetic recording medium |
| 04/25/1989 | US4824539 Perpendicular magnetic recording medium |
| 04/25/1989 | US4823578 Method of manufacturing substrate for memory disk |
| 04/20/1989 | WO1989003575A1 Vertical magnetic recording system |
| 04/19/1989 | EP0312406A2 High-speed reproduction facility for audio programs |
| 04/19/1989 | EP0312404A2 Apparatus and method for improving the fidelity of audio recording on a magnetic medium |
| 04/19/1989 | EP0312143A1 Magneto-optical recording apparatus and energizing circuit for use in such a magneto-optical recording apparatus |
| 04/19/1989 | EP0312074A2 Method of improving a magnetic recording medium and magnetic recording medium |
| 04/19/1989 | EP0311935A2 Urethane resins |
| 04/19/1989 | EP0311859A2 Data storage apparatus |
| 04/19/1989 | EP0311855A2 Layered structure thin-film magnetic head |
| 04/19/1989 | EP0311854A1 Layered structure thin-film magnetic head for perpendicular magnetization |
| 04/18/1989 | US4823221 Magnetic head with planar interface position registration means |
| 04/18/1989 | US4823218 Balance compensated rotary magnetic head device |
| 04/18/1989 | US4823217 Circuiting device |
| 04/18/1989 | US4823216 Microminimonolithic magnetic head slider |
| 04/18/1989 | US4823212 Sampled servo code format and system for a disc drive |
| 04/18/1989 | US4823211 Rotary magnetic tape transducer headwheel structure |
| 04/18/1989 | US4823206 Video signal recording and/or reproducing apparatus |
| 04/18/1989 | US4823205 Capacitive sensor for head positioning in magnetic recording disk files |
| 04/18/1989 | US4823198 Video recording and reproducing device and method including video signal record restart during rewind/playback operation after non-detection of pilot signal in video track |
| 04/18/1989 | US4823197 Recording apparatus and reproducing apparatus |
| 04/18/1989 | US4822672 Abasive tape |
| 04/18/1989 | US4822637 Lubricant mixture of fatty acid ester and fluorosilicone oil |
| 04/18/1989 | US4822634 Longitudinal magnetic coated recording medium |
| 04/18/1989 | US4822509 Uniform particle size; mixture of gamma and ferrite crystal structure |
| 04/18/1989 | US4822409 Method for the manufacture of a thermostable amorphous ferromagnetic powder |
| 04/18/1989 | US4821406 Process for producing a magnetic head |
| 04/18/1989 | US4821405 Method of securing a video magnetic head |
| 04/18/1989 | US4821404 Method of connecting a magnetic head core with a mounting plate |
| 04/18/1989 | US4821403 Method for making a flat magnetic structure for read/write magnetic heads |
| 04/18/1989 | CA1252928A1 Flexible, self-crosslinking binders |
| 04/18/1989 | CA1252799A1 Dispersions of magnetic particles and dispersants therefor |
| 04/12/1989 | EP0311486A1 Device for optical reading of and magnetic writing on an information carrier |
| 04/12/1989 | EP0311426A2 Biaxially oriented polyester film |
| 04/12/1989 | EP0310930A2 Magnetic recording medium |
| 04/12/1989 | EP0310806A1 Measuring procedure for the determination of the thickness of a magnetic tape |
| 04/12/1989 | EP0310756A2 Magnetic disk unit |