| 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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| 01/18/1990 | DE3824045A1 Magnetic head arrangement for a magnetic tape apparatus |
| 01/17/1990 | EP0351251A2 Magnetic disc cartridge |
| 01/17/1990 | EP0351250A2 Magneto-optic recording medium comprising Dy-Fe-Co-based alloys |
| 01/17/1990 | EP0351160A2 Disk restraint |
| 01/17/1990 | EP0351048A2 Recording head to optimize high density recording |
| 01/17/1990 | EP0350940A2 Method and apparatus for producing a magnetic recording medium |
| 01/17/1990 | EP0350877A2 Flexible magnetic disc |
| 01/17/1990 | EP0350731A2 Method for determining the skew error on a magnetic tape |
| 01/17/1990 | EP0203144B1 Optimum control of overwrite by record gap length selection |
| 01/17/1990 | CN2051381U Acoustic frequency magnetic head fine turning device for tape-videocorder |
| 01/17/1990 | CN2051380U Thin shape taperecorder |
| 01/16/1990 | US4894743 Replaceable cleaner/drive members for a tape drive machine |
| 01/16/1990 | US4894742 Containing entrapped argon |
| 01/16/1990 | US4894741 Thin dielectric separator |
| 01/16/1990 | US4894740 Magnetic head air bearing slider |
| 01/16/1990 | US4894737 Magnetic head apparatus having projections extending from at least a front side thereof |
| 01/16/1990 | US4894736 Bendable E-shaped transducer |
| 01/16/1990 | US4894734 Method and apparatus for constant density recording |
| 01/16/1990 | US4894733 Tape winding method and machine |
| 01/16/1990 | US4894728 Data acquisition and recording system |
| 01/16/1990 | US4894136 Electrolytic treatment of a surface |
| 01/16/1990 | US4894133 Multilayer disks, protective coatings, sputtering |
| 01/16/1990 | US4894098 Process for preparing magnetic layer and magnetic head prepared using the same |
| 01/16/1990 | US4893910 Magneto-optical recording system having medium with domainless control layer |
| 01/16/1990 | US4893793 Apparatus for the manufacture of a thermostable amorphous ferromagnetic powder |
| 01/11/1990 | WO1990000280A1 Disk drive memory |
| 01/11/1990 | DE3920318A1 Magnetic sensor |
| 01/11/1990 | DE3914239A1 Einrichtung zum schutz von daten Means for protection of data |
| 01/10/1990 | EP0350412A1 Device made of magnetic material with anti-wear layer and application to a recording/reproducing head and a recording disk |
| 01/10/1990 | EP0350101A1 Monocrystalline MnZn-ferroferrite material having a high content of Zn, and a magnetic head manufactured from said material |
| 01/10/1990 | EP0350054A2 Magnetic recording and reproducing apparatus |
| 01/10/1990 | EP0350016A1 Process and apparatus to copy the contents of record carriers |
| 01/10/1990 | EP0349626A1 Method for producing hall effect sensor for magnetic recording head |
| 01/10/1990 | CN2051007U Magnetic cassette unit comprising magnetic head fixing board and magnetic head module |
| 01/10/1990 | CN1038716A Apparatus for storing and feeding endless tape and recorded tape duplicator system utilizing the same |
| 01/09/1990 | US4893209 Multifunctional magnetic head cleaning media |
| 01/09/1990 | US4893208 Magnetic erase head with terminator magnets on the ends |
| 01/09/1990 | US4893207 Magnetic writing and optical reading head for a data carrier |
| 01/09/1990 | US4893205 Flexure mount for disc drives |
| 01/09/1990 | US4893204 Air bearing head slider having first and second leading edge tapered portions |
| 01/09/1990 | US4893203 Magnetic head |
| 01/09/1990 | US4893201 Track access control system for magnetic disk apparatus |
| 01/09/1990 | US4893200 Composite magnetic head |
| 01/09/1990 | US4892789 Magnetic recording medium |
| 01/09/1990 | US4892451 Apparatus for the quasi-continuous treatment of substrates |
| 01/09/1990 | US4892418 Hydrodynamic bearing device |
| 01/09/1990 | US4891878 Method of making a magnetic head |
| 01/09/1990 | CA1264374A1 Method and apparatus for cleaning operating components of a video player/recorder |
| 01/03/1990 | EP0349430A2 Rotary head drum apparatus |
| 01/03/1990 | EP0349362A1 Process for realising the evenness of an active face for a magnetic recording/reading head |
| 01/03/1990 | EP0349360A1 Process for magnetically characterizing the registration layer of a magnetic information support |
| 01/03/1990 | EP0349287A2 Plate-like composite ferrite fine particles suitable for use in magnetic recording and process for producing the same |
| 01/03/1990 | EP0349271A2 Magneto-optic memory device |
| 01/03/1990 | EP0348559A1 Read/write heads mounting tool. |
| 01/02/1990 | US4891726 Rotary magnetic head and guide drum assembly with reduce mounting height |
| 01/02/1990 | US4891725 Magnetoresistive sensor having antiferromagnetic exchange-biased ends |
| 01/02/1990 | US4891724 Disk drive read/write head rack flexible rail mount apparatus |
| 01/02/1990 | US4891723 Multiple stage heat shielding for transducer support arm |
| 01/02/1990 | US4891722 Incremental stepping assembly for a rotary actuator |
| 01/02/1990 | US4891721 Magnetic head device |
| 01/02/1990 | US4891718 Magnetic recording |
| 01/02/1990 | US4891717 Methods and apparatus for performing high density isotropic/perpendicular digital magnetic recording |
| 01/02/1990 | US4891513 Photosensor block having an adjustable mounting structure to permit fine positioning of the photosensor block included in the photosensor block |
| 01/02/1990 | US4891278 Ferrromagnetic thin film and magnetic head using it |
| 01/02/1990 | US4891114 Magnetic recording media |
| 01/02/1990 | US4890379 Method for manufacturing magnetic head |
| 01/02/1990 | US4890378 Method for manufacturing a magnetic head core having a magnetic film |
| 12/28/1989 | WO1989012887A1 Process for treating metal particles against corrosion and the particles thereby obtained |
| 12/28/1989 | WO1989012886A1 Improvements in magnetic recording |
| 12/28/1989 | WO1989011148A3 Tape drive machines |
| 12/28/1989 | DE3920741A1 Composition for the reverse-side coating of a magnetic recording medium, and a magnetic recording medium having a reverse-side coat formed from this composition |
| 12/28/1989 | DE3920335A1 Process and apparatus for recording and reproducing data onto and from a magnetic tape by means of a rotating head |
| 12/28/1989 | DE3920319A1 Magnetic head |
| 12/27/1989 | EP0348265A1 Process for producing a magnetic recording/reading head from a magnetic substrate |
| 12/27/1989 | EP0348230A2 Process for producing thin film magnetic head |
| 12/27/1989 | EP0348218A2 Dual deck video recording apparatus and method |
| 12/27/1989 | EP0348169A2 Thin film magnetic head |
| 12/27/1989 | EP0348027A2 Magneto-resistive sensor with opposing currents for reading perpendicularly recorded media |
| 12/27/1989 | EP0347997A2 Method of producing a magnetic head as well as a magnetic head producted in accordance with the method |
| 12/27/1989 | EP0347646A2 Biaxially oriented laminated film |
| 12/27/1989 | CN2050213U Reception tape box |
| 12/27/1989 | CN2050212U Fully-automatic station-reporting unit for bus |
| 12/27/1989 | CN1006256B 自动跟踪装置 Automatic tracking device |
| 12/26/1989 | US4890178 Magnetic bias coil for a magneto-optical recording apparatus |
| 12/26/1989 | US4890177 Guide drum assembly with built-in motor having floating rotor |
| 12/26/1989 | US4890176 Crash stop and magnetic latch for a voice coil actuator |
| 12/26/1989 | US4890174 Rotary voice coil micro-hard disk drive system |
| 12/26/1989 | US4890172 Automatic servo gain calibration system for a disk drive |
| 12/26/1989 | US4890170 Waveform equalization circuit for a magnetic reproducing device |
| 12/26/1989 | US4889939 Lubricants |
| 12/26/1989 | US4889895 Electron beam curable copolymer useful in recording media |
| 12/26/1989 | US4889767 Magnetic recording medium |
| 12/26/1989 | US4889607 Method of producing the magnetic metallic layers having a low thermal coefficient of expansion |
| 12/21/1989 | DE3820502A1 Process for producing magnet heads |
| 12/20/1989 | EP0347102A2 Magnetic disk file recording with variable track width and variable track density |
| 12/20/1989 | EP0347076A2 Aligned stretched surface recording medium |
| 12/20/1989 | EP0347074A2 Magnetic tape cartridge identification |
| 12/20/1989 | EP0346973A1 Apparatus for recording and/or reproducing an electric signal on/from a magnetic record carrier |
| 12/20/1989 | EP0346945A2 Apparatus for filling a notched workpiece |
| 12/20/1989 | EP0346817A2 Magnetic field sensor with a thin ferromagnetic layer |