| 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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| 10/15/1991 | US5057944 Multiplex rotating magnetic head system for multiply recording and erasing audio and video signals |
| 10/15/1991 | US5057934 Circuit for tape duplication in video tape recorder |
| 10/15/1991 | US5057932 Audio/video transceiver apparatus including compression means, random access storage means, and microwave transceiver means |
| 10/15/1991 | US5057785 Method and circuitry to suppress additive disturbances in data channels |
| 10/15/1991 | US5057623 Organic fluorine compound |
| 10/15/1991 | US5057380 For increasing the saturation magnetic flux density and coercive force |
| 10/15/1991 | US5057374 Mno/nio-based nonmagnetic substrate material |
| 10/15/1991 | US5057373 Vinyl chloride resin, phenoxy resin, polycarbonate polyurethane, polyisocyanate and lubricant |
| 10/15/1991 | US5057371 Aziridine-treated articles |
| 10/15/1991 | US5057364 Magnetic recording medium |
| 10/15/1991 | US5057352 Magnetic recording medium |
| 10/15/1991 | US5057299 Method for making beta cobaltous hydroxide |
| 10/15/1991 | US5057200 Sputtering chromium underlay, then magnetic alloy layer |
| 10/15/1991 | US5057184 Scanning substrate surface to cause melting, bubble formation then collapse |
| 10/15/1991 | US5056353 Marker for detecting amount of working and process for producing thin film magnetic head |
| 10/12/1991 | CA2040075A1 Readily adhesive polyester film and process for preparation thereof |
| 10/10/1991 | DE4110363A1 Magnetic recording medium contg. new polyurethane binder - derived from poly:methyl:valerolactone diol with excellent dispersibility |
| 10/09/1991 | EP0451041A1 Drum unit for a magnetic tape |
| 10/09/1991 | EP0450956A2 Method of producing magnetic recording media |
| 10/09/1991 | EP0450629A1 Recording and reproducing device and recording medium therefor |
| 10/09/1991 | EP0450313A2 Laser etching of materials in liquids |
| 10/09/1991 | EP0450226A2 Micro-burnishing flex head structure |
| 10/09/1991 | EP0450184A2 Aerodynamically releasable lock for a disk file actuator assembly |
| 10/09/1991 | EP0449961A1 Permanent magnet shaped to provide uniform biasing of a magnetoresistive reproduce head. |
| 10/09/1991 | EP0449853A1 Self-compensating high density data recording and detection scheme. |
| 10/09/1991 | EP0295164B1 Method of writing synchronization information on a magnetic record carrier |
| 10/08/1991 | US5055969 Servo/data actuator arm flexible circuit |
| 10/08/1991 | US5055959 Tape head with low spacing loss produced by narrow and wide wear regions |
| 10/08/1991 | US5055958 Surface-reinforced glass and magnetic head having surface-reinforced glass |
| 10/08/1991 | US5055957 Lead borosilicate glass isolates magnetic ferrite blocks |
| 10/08/1991 | US5055956 Composite magnetic head assembly for guiding a magnetic tape with improved stability |
| 10/08/1991 | US5055955 Dual magnetic recording and reproduction heads with elastic mounting |
| 10/08/1991 | US5055952 Automatic track finding (ATF) controller for digital audio tape recorder |
| 10/08/1991 | US5055951 Method and apparatus for servo-positioning movable transducer heads |
| 10/08/1991 | US5055359 Magnetic recording medium with an intermediate protective layer of silicon dioxide and a perfluoroalkylpolyether lubricant layer |
| 10/08/1991 | US5055352 Durability, friction resistance |
| 10/08/1991 | US5055351 Video disks |
| 10/08/1991 | US5055349 Magnetic recording medium |
| 10/08/1991 | US5055322 Method of producing magnetic recording media |
| 10/08/1991 | CA1290199C Nonabrasive magnetic recording tape |
| 10/07/1991 | CA2039899A1 Process for producing magnetic metal powder and coating for magnetic recording medium |
| 10/05/1991 | CA2036261A1 Magnetic recording medium |
| 10/03/1991 | WO1991015012A2 Shorted dual element magnetoresistive reproduce head exhibiting high density signal amplification |
| 10/03/1991 | WO1991014996A1 Reader/writer for flexible data cards |
| 10/02/1991 | EP0449625A2 Mass velocity controller |
| 10/02/1991 | EP0449607A1 Cassette autochanger |
| 10/02/1991 | EP0449535A2 Core slider for rigid magnetic disc drive, and method of producing the same |
| 10/02/1991 | EP0449314A2 Disc drive device |
| 10/02/1991 | CN2085993U Cassette endless magnetic tape with double (single) face magnetic layer tape |
| 10/02/1991 | CN1054991A Polymeric film |
| 10/01/1991 | US5053904 Hard disk driving device having a plurality of head sliders with equalized flotation height |
| 10/01/1991 | US5053900 Recording and/or reproducing apparatus performing a tracking control by moving guide members for a recording medium |
| 10/01/1991 | US5053899 Exact position control of a relative position between a magnetic head and a recording medium |
| 10/01/1991 | US5053898 Recording and/or reproducing apparatus, particularly with means for searching for vacant tracks |
| 10/01/1991 | US5053893 Method of and device for demagnetizing magnetic recording medium |
| 10/01/1991 | US5053892 Thin film head read recovery |
| 10/01/1991 | US5053891 Method of prerecording tape and apparatus for use therewith |
| 10/01/1991 | US5053890 Magnetic recording and reproducing apparatus |
| 10/01/1991 | US5053289 Magnetic recording medium |
| 10/01/1991 | US5053273 Magnetic recording media |
| 10/01/1991 | US5053250 Depositing liquid metal layer and then magnetic film layer on top of liquid metal; controlling temperature |
| 10/01/1991 | US5053075 Reductionof iron oxides with metal hydride-boron carrier complex (in organic solvents) |
| 10/01/1991 | US5052099 Polycrystalline ceramic; surface roughness |
| 10/01/1991 | CA1290055C Magnetic recording medium and method of manufacturing the same |
| 10/01/1991 | CA1290054C Method and apparatus for controlling the flying height of the head in a magnetic storage unit |
| 10/01/1991 | CA1289727C Highly magnetic iron oxide powder |
| 09/25/1991 | EP0448338A2 A rotary actuator head positioning apparatus and dual pivot apparatus for a disk drive |
| 09/25/1991 | EP0448216A2 Disk drive with zero skew rotary actuator system |
| 09/25/1991 | EP0448033A2 Method of manufacturing a magnetic head |
| 09/25/1991 | EP0447948A1 Thin, transparent corrosion resistant coatings and process for their fabrication |
| 09/25/1991 | EP0447654A1 Apparatus for degaussing magnetic storage media |
| 09/25/1991 | EP0447555A1 A composite polyester film |
| 09/25/1991 | EP0447406A1 Camera apparatus for magnetically recording on film. |
| 09/25/1991 | EP0162689B1 Magnetic disc reproducing apparatus |
| 09/25/1991 | EP0128221B1 Rotary head device with fluid bearing |
| 09/25/1991 | CN1054864A 磁动机 Magnetic motive |
| 09/24/1991 | US5051970 Magneto-optic recording system with overwrite capability |
| 09/24/1991 | US5051858 Recording disk having improved centering hub and magnetic yoke arrangement |
| 09/24/1991 | US5051856 Thin film magnetic head with mixed crystal structures |
| 09/24/1991 | US5051854 Magnetic head device |
| 09/24/1991 | US5051852 Mechanism for balancing a rotary magnetic head apparatus |
| 09/24/1991 | US5051851 Method and apparatus for positioning head on the basis of premeasured amount of displacement |
| 09/24/1991 | US5051848 Method and apparatus for reproducing magnetic tape using rotary drum heads |
| 09/24/1991 | US5051847 Magnetic head driver amplifier for oblique track recording tape |
| 09/24/1991 | US5051320 Magnetic recording medium |
| 09/24/1991 | US5051319 Magnetic recording tape containing low levels of compounds with molecular weights between specified limits determined from gel permeation chromatography of tape extract |
| 09/24/1991 | US5051318 Magnetic recording medium containing an organic silicone compound having branched chaw saturated hydrocarbon groups |
| 09/24/1991 | US5051303 Multilayer element of a nonmagnetic support with a magnetic layer of ferromagnetic particles of iron oxide or iron oxide with cobalt |
| 09/24/1991 | US5051292 Biaxially oriented film of polyethylene-2,6-naphthalate |
| 09/24/1991 | US5051291 Magnetic recording medium |
| 09/24/1991 | US5051288 Laminated magnetic layer on a substrate to form a disk |
| 09/24/1991 | US5051287 Magnetic disk having a magnetic layer comprising a binder and ferromagnetic particles of specified crystallite size and surface area and in which the mechanical loss tangent, tan delta, is within a specified range |
| 09/24/1991 | US5051201 Preparation of finely divided hexagonal ferrite powder |
| 09/19/1991 | WO1991014266A1 Tape storage device |
| 09/19/1991 | WO1991014260A1 Magnetic composition and its applications |
| 09/19/1991 | DE4107868A1 Magnetic head for data or floppy disc - has read-write core formed from two parts of magnetic material and two parts of non-magnetic material |
| 09/19/1991 | DE4105877A1 Electromagnetic recording head with improved wear properties - uses glass compsn. with much higher hardness value but low softening point |
| 09/18/1991 | EP0447342A2 Relative timing precompensation of high-speed pulse signals for digital magnetic recording |
| 09/18/1991 | EP0447246A2 A data recovery method in a magnetic disk data storage device |
| 09/18/1991 | EP0447220A2 Floating magnetic head |