| 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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| 01/10/1989 | US4797764 Recording disk with low total indicated runout |
| 01/10/1989 | US4797763 Compact magnetic head flexible suspension |
| 01/10/1989 | US4797762 Stress free winchester drive shaft mounting |
| 01/10/1989 | US4797757 Servo head positioner with pulse adjusting circuitry |
| 01/10/1989 | US4797756 Method for positioning head in disk drive deriving "position" offset from "quadrature" signals |
| 01/10/1989 | US4797754 Method for writing servo pattern in magnetic disk unit |
| 01/10/1989 | US4797753 Monitor for visually indicating wear on record media |
| 01/10/1989 | US4797331 Magneto-optical recording material |
| 01/10/1989 | US4797330 Iron, cobalt, metal oxide for magnetic recording media |
| 01/10/1989 | US4797324 Heat resistance, magnetic layer on substrate |
| 01/10/1989 | US4797321 Multilayer, electromagnetism, polymer binders, polishing particles |
| 01/10/1989 | US4797303 Surface lubricants for disc record |
| 01/05/1989 | DE3720974A1 Process for the surface treatment of thin-film magnetic discs |
| 01/04/1989 | EP0297922A2 Non-destructive method for magnetic measurements of recording disc members |
| 01/04/1989 | EP0297915A2 Magnetic recording medium |
| 01/04/1989 | EP0297776A1 Soft magnetic thin films |
| 01/04/1989 | EP0297440A1 Disclike magnetic recording carrier |
| 01/04/1989 | EP0297437A2 Flexible replica grating and optical multiplexer/demultiplexer using it |
| 01/04/1989 | EP0297392A2 Process for preparing finely divided barium hescaferrite pigments from halide molten masses and use thereof |
| 01/04/1989 | EP0210244B1 Facetted nodular particles, their preparation and use |
| 01/03/1989 | US4796134 Magnetic head with improved supporter for perpendicular magnetization recording |
| 01/03/1989 | US4796133 Floating magnetic head |
| 01/03/1989 | US4796132 Thin film magnetic head having Au ultrasonic connection structure |
| 01/03/1989 | US4796131 Head positioner preloaded stop |
| 01/03/1989 | US4796130 Carriage lock mechanism of a magnetic recording/reproduction apparatus |
| 01/03/1989 | US4796129 Magnetic head device for improving head placement on a magnetic disc |
| 01/03/1989 | US4796128 Rotary head type reproducing apparatus |
| 01/03/1989 | US4796127 Silicon carbide and aluminum mixture with sintering aids |
| 01/03/1989 | US4796126 Magnetic head flying slider assembly |
| 01/03/1989 | US4796125 Optimizing the positioning of a pair of magnetic heads relative to spaced tracks on magnetic tape |
| 01/03/1989 | US4796122 Integral head positioner for hard disk storage system |
| 01/03/1989 | US4796121 Temperature-compensated head positioning device for magnetic disc store |
| 01/03/1989 | US4796118 Welded leaf spring mounting for magnetic head assembly of disk drive apparatus |
| 01/03/1989 | US4796114 Use in a helical)scan magnetic recorder)reproducer |
| 01/03/1989 | US4796112 Actuator access control system for a magnetic head using trapezoidal drive current |
| 01/03/1989 | US4796111 Modulating head tape distance with vibratory motion |
| 01/03/1989 | US4796109 Method for testing components of a magnetic storage system |
| 01/03/1989 | US4796106 a.c. Self-biased magnetoresistive reproduce head utilizing second harmonic signal detection |
| 01/03/1989 | US4796105 Helical scan type magnetic recording and reproducing apparatus for recording and reproducing digital signal |
| 01/03/1989 | US4796104 Video signal recording and reproducing apparatus performing time-lapse recordings compatible with standard-type apparatuses |
| 01/03/1989 | US4795981 Method for monitoring the performance of the head-disk-interface and device for preventing data losses due to magnetic head-disk-interferences |
| 01/03/1989 | US4795928 Linear actuator assembly for accessing a magnetic memory disc |
| 01/03/1989 | US4795925 Encoder motor having code wheel integral with rotor |
| 01/03/1989 | US4795672 Magnetic recording medium |
| 01/03/1989 | US4795514 Method of manufacturing an amorphous magnetic head |
| 01/03/1989 | CA1248223A1 Magnetic recording medium |
| 01/03/1989 | CA1248222A1 Magnetic transducer head utilizing magnetoresistance effect |
| 12/29/1988 | WO1988010496A1 Cleaning cassette |
| 12/29/1988 | WO1988010490A1 Cartridge-shaped cleaning device |
| 12/28/1988 | EP0296844A1 Overwriting method and system for magneto-optical recording |
| 12/28/1988 | EP0296679A1 Copying apparatus for copying a magnetic pattern from a master magnetic tape on a duplicate magnetic tape and method of operating such a copying apparatus |
| 12/28/1988 | EP0200751B1 Article with reduced friction polymer sheet support |
| 12/28/1988 | CA1247737A Magnetic head |
| 12/28/1988 | CA1247736A Narrow contour head assembly |
| 12/28/1988 | CA1247734A Switching mechanism for the deck of a magnetic-tape- cassette apparatus |
| 12/27/1988 | US4794560 Eraseable self biasing thermal magneto-optic medium |
| 12/27/1988 | US4794483 Magnetic head having layers of amorphous magnetic alloy bonded together with a glass containing vandium oxide phosphorus oxide and antimony oxide |
| 12/27/1988 | US4794472 Video tape reproducing apparatus with a processor that time-shares different operations |
| 12/27/1988 | US4794469 Recorded data reproducing apparatus |
| 12/27/1988 | US4794468 Magnetic disk with analog and digital video signals recorded thereon and apparatus for making recording on said disk |
| 12/27/1988 | US4794467 Apparatus for automatically supplying and selectively reproducing a plurality of cassettes and for avoiding the reproducing of degraded signals |
| 12/27/1988 | US4794047 Method of manufacturing magnetic recording medium |
| 12/27/1988 | US4794042 Iron carbide and oxide particle magnetic material |
| 12/27/1988 | US4794040 Magnetic recording medium having a back coat layer containing carbon black having defined ranges of pH and coloring power |
| 12/27/1988 | US4794035 Magnetic recording medium |
| 12/22/1988 | DE3718681A1 Magnetic storage disk |
| 12/21/1988 | EP0295979A1 Method for writing information on a magnetic recording medium |
| 12/21/1988 | EP0295813A2 Magnetic recording medium and a method for producing the same |
| 12/21/1988 | CN88205528U Acoustic frequency signal recorder for communiction |
| 12/20/1988 | US4792875 Gimbal spring for floating type magnetic head |
| 12/20/1988 | US4792870 Method and apparatus for track accessing using a predicted state vector |
| 12/20/1988 | US4792868 Recording/reproducing device with means for switching inductance of such device for use in a floppy disk apparatus |
| 12/20/1988 | US4792867 Synchronizing circuit for dubbing apparatus |
| 12/20/1988 | US4792861 Video signal recording apparatus with track centering using crosstalk detection and third odd multiple field recording |
| 12/20/1988 | US4792497 Cobalt, nickel, or iron or alloy thereof; maximum torque and magnetic flux |
| 12/20/1988 | US4792486 Two-layer; upper layer of cobalt-chromium; lower layer also containing tantalum or niobium |
| 12/20/1988 | US4792483 Magnetic recording medium |
| 12/20/1988 | US4791719 Method of manufacturing a thin-film magnetic head |
| 12/20/1988 | US4791718 Method for assembling a magnetic head |
| 12/20/1988 | CA1247236A1 Cartridge cleaning device |
| 12/15/1988 | WO1988010002A1 Process for producing ultrafine magnetic metal powder |
| 12/15/1988 | WO1988009830A1 Process for etching with gaseous plasma |
| 12/14/1988 | EP0295164A1 Method of writing synchronization information on a magnetic record carrier |
| 12/14/1988 | EP0295028A1 Magnetic devices |
| 12/14/1988 | EP0295015A2 Track access control system for magnetic disk apparatus |
| 12/14/1988 | EP0294761A1 Method of, and apparatus for, avoiding a magnetic transducer crash |
| 12/14/1988 | EP0294718A2 Flexible magnetic recording material with improved adhesion |
| 12/14/1988 | EP0294603A2 Method for removing contaminants from a surface |
| 12/14/1988 | EP0294572A1 Method and apparatus for coating a substrate |
| 12/14/1988 | CN88103196A Magnetic recording and/or reproducing apparatus |
| 12/14/1988 | CN88103107A Recorder of preventing erase head move into direction of magnetic tape breadth |
| 12/13/1988 | US4791514 Magnetic recording device with rotating head |
| 12/13/1988 | US4791513 Button shaped head for floppy disc |
| 12/13/1988 | US4791508 Magnetic disc memory unit |
| 12/13/1988 | US4791507 Apparatus for reproducing information at variable speeds from a magnetic tape |
| 12/13/1988 | US4791502 Apparatus for positioning a reading-recording head on a disc |
| 12/13/1988 | US4791501 Magnetic head support apparatus for a two-sided floppy disk drive |
| 12/13/1988 | US4791500 Method and apparatus for writing information on magnetic disk with single-gap magnetic head |
| 12/13/1988 | US4791497 Apparatus for recording and/or reproducing, in successive slant tracks on a record tape, at least an audio signal and an index signal for controlling tape transport |
| 12/13/1988 | US4791495 Digital signal recording and reproducing system having an interface for dubbing a color television signal in the component form |