| 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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| 03/01/1989 | EP0304851A2 Process for the preparation of modified ferromagnetic chromium dioxide |
| 03/01/1989 | EP0304695A1 Magnetic storage device with a tracking system |
| 03/01/1989 | EP0304634A2 An improved automatic head position tracking servo for a rotary head magnetic tape recording and reproducing apparatus |
| 03/01/1989 | EP0304633A2 An improved automatic head position tracking servo for a rotary head magnetic tape recording and reproducing apparatus |
| 03/01/1989 | CN1031440A Ion implantation method for improving magnetism of co-cr film |
| 03/01/1989 | CN1031439A Three-pole magnetic recording head |
| 02/28/1989 | US4809120 Head position control system |
| 02/28/1989 | US4809118 PCM helical-scan magnetic record/playback systems |
| 02/28/1989 | US4809112 Back core holding clip disposed on interior side of back core |
| 02/28/1989 | US4809111 Magnetic head for use in vertical recording |
| 02/28/1989 | US4809110 Narrow contour head assembly |
| 02/28/1989 | US4809109 Annealing to form ternary alloy between ferromagnetic and nonferromagnetic layers; high exchange bias field |
| 02/28/1989 | US4809108 Tape running direction changeover mechanism with automatic tape head azimuth alignment |
| 02/28/1989 | US4809107 Guide mechanism for a magnetic head positioning devices |
| 02/28/1989 | US4809106 Lead screw/transducer aligning mechanism for disk drive apparatus |
| 02/28/1989 | US4809105 Flexible recording medium tensioning magnetic recording head |
| 02/28/1989 | US4809104 Recording head and support arm for stretched surface recording medium |
| 02/28/1989 | US4809103 Head slider with an integrated flat magnetic head |
| 02/28/1989 | US4809099 Transport for tape cartridge with leader block |
| 02/28/1989 | US4809097 Magnetic recording and reproducing apparatus |
| 02/28/1989 | US4809096 Tracking controlling device using multiple pilot signals in magnetic video signal recording and reproducing apparatus |
| 02/28/1989 | US4809095 Recording and reproducing apparatus selectively using a plurality of kinds of recording mediums |
| 02/28/1989 | US4809092 Improved method and arrangement for recording digital data on a magnetic recording medium by use of binary data signals and magnetic bias signals |
| 02/28/1989 | US4809091 Disk apparatus |
| 02/28/1989 | US4809090 Recording/reproducing system having a magnetic head of preceding-erase type |
| 02/28/1989 | US4809087 Apparatus for recording a discriminative signal |
| 02/28/1989 | US4808900 Bi-directional difference counter |
| 02/28/1989 | US4808489 Method of producing magnetic disc |
| 02/28/1989 | US4808472 Magnetic recording media with protective lubricating coating |
| 02/28/1989 | US4808463 With glaze layer having similar thermal coefficent of expansion |
| 02/28/1989 | US4808455 Magnetic recording disc and process for producing the same |
| 02/28/1989 | US4808437 Method for producing magnetic recording medium |
| 02/28/1989 | US4808327 Compositions of particulate magnetic oxides with a defect spinel structure, preparation thereof and application thereof |
| 02/28/1989 | US4808279 Process for preparing magnetic recording material |
| 02/28/1989 | US4808216 Gas phase pyrolysis of diluted transition metal carbonyl in magnetic field |
| 02/28/1989 | CA1250662A1 Video signal reproducing apparatus |
| 02/28/1989 | CA1250661A1 Apparatus for recording and/or reproducing digital information signal |
| 02/23/1989 | WO1989001685A1 Magnetic storage device with tracker system |
| 02/23/1989 | WO1989001684A1 Optimizing the positioning of a pair of magnetic heads relative to spaced tracks on magnetic tape |
| 02/23/1989 | WO1989001683A1 Lifting device for rotors |
| 02/23/1989 | WO1989001521A1 Process for producing magnetic powder |
| 02/23/1989 | DE3807894C1 Process for producing MIG magnetic heads |
| 02/23/1989 | DE3727054A1 Method of producing flying elements for thin-film magnetic heads |
| 02/22/1989 | EP0304373A2 Process for the obtention of a pattern, especially from a ferromagnetic material having flanks with different steepnesses, and magnetic head with such a pattern |
| 02/22/1989 | EP0304298A2 Magnetic head drive circuit |
| 02/22/1989 | EP0304288A1 Magneto-optical information storage medium and method for recording and erasing information |
| 02/22/1989 | EP0304262A2 Head driving apparatus |
| 02/22/1989 | EP0304153A2 Films containing liquid crystalline polymers |
| 02/22/1989 | EP0303921A1 Lifting device for a rotor |
| 02/22/1989 | EP0303670A1 Hard disk drive module and receptacle therefor. |
| 02/22/1989 | EP0162882B1 A magnetic information recording and/or reading head with increased wear-resistant properties and a method for manufacturing the same |
| 02/21/1989 | US4807076 Thin film magnetic head for use in vertical magnetic recording |
| 02/21/1989 | US4807075 Magnetic head |
| 02/21/1989 | US4807074 Magnetoresistive head for magnetic disk |
| 02/21/1989 | US4807073 Magnetoresistance type magnetic head and method for fabricating same |
| 02/21/1989 | US4807072 Head position control mechanism for a magnetic disk apparatus with head locking |
| 02/21/1989 | US4807071 Mechanism for preventing damage to the magnetic head and medium of a magnetic recording/reproducing apparatus during transport |
| 02/21/1989 | US4807070 Supporting structure for dual magnetic head |
| 02/21/1989 | US4807063 Head position control system with multiple servo areas staggered on various disks |
| 02/21/1989 | US4807062 Multiple force retract circuit for a magnetic disk drive |
| 02/21/1989 | US4807060 Information signal recording apparatus |
| 02/21/1989 | US4807057 Data recording apparatus |
| 02/21/1989 | US4807055 Multi-speed magnetic recording playback |
| 02/21/1989 | US4807054 Transducer support assembly having laterally offset flexures |
| 02/21/1989 | US4806861 Method and system for detecting tape defects by transporting a tape in two directions |
| 02/21/1989 | US4806740 Magnetic characteristic identification system |
| 02/21/1989 | US4806429 Solid solution of zinc on surface |
| 02/21/1989 | US4806417 Ferromagnetic powder dispersed in metal sulfonate-containing resin binder |
| 02/21/1989 | US4806335 Process for producing acicular iron α-oxyhydroxide particle powder |
| 02/16/1989 | DE3725837A1 Multiple thin-film magnetic head type magnetic memory - uses thin-film magnetic heads each having conductor body carrying magnetic flux |
| 02/15/1989 | EP0303454A2 Method of locating and inspecting dropouts on a magnetic disc |
| 02/15/1989 | EP0303324A1 Magnetic material, method of manufacturing this material and a magnetic head provided with this material |
| 02/15/1989 | EP0303178A2 Method of manufacturing magnetic-recording media |
| 02/15/1989 | EP0303151A1 Fine-grained magnetic hexaferrite pigments containing boron, process for their production and their use |
| 02/15/1989 | EP0302893A1 Wipers for pair of stabilized magnetic disks. |
| 02/14/1989 | US4805065 Particulate magnetic recording media having an areally controlled recording characteristics |
| 02/14/1989 | US4805059 Rock salt type crystalline structure |
| 02/14/1989 | US4805058 Magnetic erasing head |
| 02/14/1989 | US4805057 Magnetic head driving apparatus |
| 02/14/1989 | US4805056 Magnetic disc drive |
| 02/14/1989 | US4805051 Apparatus for recording and reproducing data on a magnetic recording medium |
| 02/14/1989 | US4805050 Disk player information selecting apparatus |
| 02/14/1989 | US4805047 Read/write magnetic disk apparatus operable in plural density modes |
| 02/14/1989 | US4804959 Method and apparatus using multiple codes to increase storage capacity |
| 02/14/1989 | US4804816 Method of making a thin-film magnetic head having a multi-layered coil structure |
| 02/14/1989 | US4804736 Polyethylene-2,6-naphthalate film for magnetic recording tapes |
| 02/14/1989 | US4804590 Abrasion resistant magnetic recording member |
| 02/14/1989 | US4804561 Process for producing ferromagnetic metal fine particles |
| 02/14/1989 | CA1250048A1 Combination magnetic transducer head apparatus |
| 02/14/1989 | CA1250047A1 Reproduced signal switching circuit for reproducing apparatus having rotary heads for special reproduction |
| 02/08/1989 | EP0302756A2 Movable rotary head assembly |
| 02/08/1989 | EP0302706A2 In-plane magnetic disc |
| 02/08/1989 | EP0302615A1 A head suspension assembly for a magnetic record disk store |
| 02/08/1989 | EP0302606A2 Method and apparatus for lubricating a magnetic disk continuously in a recording file |
| 02/08/1989 | EP0302342A2 Thermally stable iron oxide pigments, process for preparing them and their use |
| 02/08/1989 | CN2032357U Recording repeatable laser recording tape |
| 02/08/1989 | CN2032356U Cassette tape mailied by envelope |
| 02/07/1989 | USH588 Transversal filter used as an equalizer for data readout from a disk drive |
| 02/07/1989 | US4803674 Magneto-optical recorder with small-sized, low-powered electromagnetic coil |
| 02/07/1989 | US4803583 Cleaning cassette with an internal drive motor |