| 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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| 05/10/1988 | US4743978 Recording/reproduction system with a fine picture quality for a helical scan-type video tape recorder |
| 05/10/1988 | US4743861 Frequency response compensation circuit |
| 05/10/1988 | US4743502 Complex oxide of aluminum, tantalum, tungsten and others for protective layer |
| 05/10/1988 | US4743501 Magnetic recording medium |
| 05/10/1988 | US4743500 Ferromagnetic metalic powder dispersed in binder on nonmagnetic support |
| 05/10/1988 | US4743491 High flux density |
| 05/10/1988 | US4743490 Counterfeit-resistant magnetic recording tape |
| 05/10/1988 | US4743487 Magnetic recording medium |
| 05/10/1988 | US4743467 Method for preparing magnetic recording medium |
| 05/10/1988 | US4743466 Magnetic tape particles, bis (triphenylphosphoranylidene) ammonium salt |
| 05/10/1988 | US4743348 Amorphous cobalt-chromium-oxygen alloy |
| 05/10/1988 | CA1236570A1 Apparatus and method for instrumented radial translation of a read/write transducer at start-up of a rotating disk file |
| 05/10/1988 | CA1236569A1 Three pole, single element read/write head |
| 05/10/1988 | CA1236568A1 Magnetic head positioning apparatus and method |
| 05/10/1988 | CA1236566A1 System for recording and/or reproducing digital data |
| 05/10/1988 | CA1236565A1 Contact printing apparatus |
| 05/10/1988 | CA1236396A1 Endotoxin-detecting device |
| 05/05/1988 | WO1988003348A1 Apparatus for magnetically recording and reproducing video signals |
| 05/05/1988 | WO1988003308A1 A process for the preparation of magnetic hexaferrite particles, particles obtained and products containing them |
| 05/05/1988 | WO1988003307A1 Magnetic head comprised of thin layers for recording/reading and method for making the same |
| 05/05/1988 | WO1988001783A3 Production of pre-recorded cassettes |
| 05/05/1988 | DE3729693A1 Process for preparing fine barium ferrite particles |
| 05/04/1988 | EP0266266A1 Process for the production of a flat, wound magnetic read and write head support, and a support obtained by this process |
| 05/04/1988 | EP0265798A2 A magnetoresistive read transducer |
| 05/04/1988 | EP0265763A2 Frequency response compensation circuit |
| 05/04/1988 | EP0265721A2 A means of fabricating thin film magnetic read-write head/arm assemblies |
| 05/04/1988 | EP0265720A2 A slider-suspension assembly and method for attaching a slider to a suspension in a data recording disk file |
| 05/04/1988 | EP0265665A2 Twin track magnetic data read-write head improving track misregistration effects in twin track vertical recording |
| 05/04/1988 | EP0265487A1 Magnetically controlled scanning magnetic head tracking control system |
| 05/04/1988 | CN87207590U Dual speed and track divided cassette recorder |
| 05/03/1988 | US4742421 Magnetic recording disc having tensioned and elastically-supported recording surface |
| 05/03/1988 | US4742420 Magnetic disk with a porous substrate |
| 05/03/1988 | US4742414 Rotary magnetic head device for magnetic recording/reproduction apparatus |
| 05/03/1988 | US4742413 Magnetic memory including a recording device and medium that can be magnetized vertically |
| 05/03/1988 | US4742412 Magnetic head having dual asymmetric gaps |
| 05/03/1988 | US4742411 Magnetic head feed mechanism including a dust preventing means |
| 05/03/1988 | US4742410 Disk drive system with head protection mechanism |
| 05/03/1988 | US4742409 Magnetic disc unit |
| 05/03/1988 | US4742404 Magnetic recording/reproduction apparatus |
| 05/03/1988 | US4742255 Linear pulse motor |
| 05/03/1988 | US4741977 Magnetic sheet |
| 05/03/1988 | US4741960 Magnetic recording medium having a back coat layer containing a specific type of lubricant |
| 05/03/1988 | US4741959 Magnetic recording medium |
| 05/03/1988 | US4741954 Magnetic recording medium |
| 05/03/1988 | US4741953 Double layer structure; specific relationship between layers for coercive force, particle size and voids |
| 05/03/1988 | US4741952 Contains non-magnetic alumina-skica based minerals; stability, durability, smoothness |
| 05/03/1988 | US4741923 Wear resistance; applying hydrogen peroxide |
| 05/03/1988 | US4741922 Stretching |
| 05/03/1988 | US4741921 Reducing part of ferric oxide; dispersing in aqueous alkaline solution of cobalt salt; oxidation of iron in resulting particles |
| 05/03/1988 | US4741918 Rotary applicator deposits thin film of dry particles on substrate; rubbing |
| 05/03/1988 | US4741895 Decomposition of ammonium dichromate |
| 05/03/1988 | US4741849 Ceramic body glass composition for bonding and filling ceramic parts thereof |
| 05/03/1988 | US4741095 Method of manufacturing magnetic head cores |
| 05/03/1988 | CA1236213A1 Rigid magnetic recording media |
| 05/03/1988 | CA1236212A1 Magnetic transducer head with slanted thin film |
| 04/28/1988 | DE3635536A1 Process for writing and/or reading the tracks of a magnetic tape |
| 04/27/1988 | EP0265246A2 Magnetic iron oxide film and production thereof |
| 04/27/1988 | EP0265189A2 Acicular magnetic iron oxide particles, process for preparing the same, and magnetic recording media using such particles |
| 04/27/1988 | EP0265133A2 Composite magnetic powder, method for producing the same and recording medium containing the same |
| 04/27/1988 | EP0265095A2 Apparatus for erasing magnetic tape |
| 04/27/1988 | EP0265092A2 Servo synchronization method and apparatus for a magnetic disk |
| 04/27/1988 | EP0264916A2 Vinyl chloride resins and compositions incorporating such resins |
| 04/27/1988 | EP0264812A2 Preamplifier circuit |
| 04/27/1988 | EP0264699A2 Manufacturing process for protection layers on magnetic record carriers and record carriers manufactured according to the same process |
| 04/27/1988 | EP0264534A2 Head actuator for use in a disc drive |
| 04/27/1988 | EP0264375A1 Method and device for the electronic processing of stored video signals. |
| 04/27/1988 | EP0213191A4 Thin-film storage disk and method. |
| 04/26/1988 | US4740855 Magnetic thin-film head having a main and an auxiliary pole for vertical magnetization |
| 04/26/1988 | US4740854 Flexure seat for a transducer head of a magnetic disk apparatus |
| 04/26/1988 | US4740853 Of iron, aluminum, silicon alloy |
| 04/26/1988 | US4740848 VCR with simplified head shielding |
| 04/26/1988 | US4740847 Magnetic recording/reproducing apparatus |
| 04/26/1988 | US4740846 Information signal recording apparatus |
| 04/26/1988 | US4740845 Data recording apparatus |
| 04/26/1988 | US4740797 Thermo-magnetic recording device |
| 04/26/1988 | US4740736 Servo data decoder for any amplitude dependent servo data encoding scheme |
| 04/26/1988 | US4740443 Encapsulated electrostatic toner with locally attached non-magnetic inorganic particles |
| 04/26/1988 | US4740430 Magneto-optic memory |
| 04/26/1988 | US4740423 Abrasive, production thereof and use thereof in magnetic recording medium |
| 04/26/1988 | US4740419 Magnetic recording media |
| 04/26/1988 | US4740418 Containing acicular chromic oxide powder |
| 04/26/1988 | US4739562 Machining sensor |
| 04/26/1988 | US4739548 Method of manufacturing magnetic head cores |
| 04/26/1988 | CA1235808A1 Vertical magnetic recording medium and process for preparation thereof |
| 04/26/1988 | CA1235806A1 Read/write head positioning apparatus |
| 04/26/1988 | CA1235804A1 Magnetic disc recording and/or reproducing apparatus |
| 04/21/1988 | WO1988002913A1 Method and apparatus for controlling the position of a moveable head assembly |
| 04/20/1988 | EP0264228A2 Data signal reproducing apparatus |
| 04/20/1988 | EP0263962A2 Improved sampled servo seek and track follow disc drive |
| 04/20/1988 | EP0146581B1 Inductively-coupled, thin-film m-r head |
| 04/20/1988 | CN85108011B Megnetic head and method for producing same |
| 04/19/1988 | US4739431 Thin-film magnetic head |
| 04/19/1988 | US4739430 Apparatus for positioning a plurality of magnetic heads over preselected tracks of at least two recording disks |
| 04/19/1988 | US4739429 Magnetic head and support therefore |
| 04/19/1988 | US4739423 Cassette tape recording and/or reproducing apparatus including an improved head base assembly |
| 04/19/1988 | US4739422 Magnetic recording apparatus |
| 04/19/1988 | US4739420 Method and apparatus for recording and reproducing a digital signal on a record medium using a rotary head |
| 04/19/1988 | US4739239 Bipolar motor control |
| 04/19/1988 | US4738891 Polyester film laminate and cassette recording tape comprised thereof |
| 04/19/1988 | US4738885 Magnetic disk, substrate therefor and process for preparation thereof |