| 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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| 11/28/1991 | WO1991018481A1 Video recorder with improved colour rendering  | 
| 11/28/1991 | WO1991018424A1 Magnetoresistance effect element  | 
| 11/28/1991 | WO1991018390A1 Thin line micro hard disk architecture  | 
| 11/28/1991 | WO1991018389A1 Bi-directional read while write magnetic head assembly having a wear avoidance contour  | 
| 11/28/1991 | WO1991018387A1 Magnetic recording medium and method of manufacturing the same  | 
| 11/28/1991 | WO1991018060A1 Organic surface treatment  | 
| 11/28/1991 | WO1991015012A3 Shorted dual element magnetoresistive reproduce head exhibiting high density signal amplification  | 
| 11/28/1991 | DE4116588A1 Test circuit for automatic track following - has interlock circuit responding to test signal generator output in digital audio tape system  | 
| 11/28/1991 | DE4016397A1 Videorecorder mit verbesserter farbaufzeichnung VCR with improved color recording  | 
| 11/27/1991 | EP0458583A2 Video signal recording apparatus  | 
| 11/27/1991 | EP0458558A2 A data recording cartridge and a flexible magnetic recording medium and a method of manufacturing the same  | 
| 11/27/1991 | EP0458528A1 Data storage device with vapour pressure control system  | 
| 11/27/1991 | EP0458445A2 Negative pressure air bearing slider  | 
| 11/27/1991 | EP0458444A2 Air bearing disk head slider  | 
| 11/27/1991 | EP0256110A4 Apparatus and method for increasing storage capacity of recording media  | 
| 11/26/1991 | US5068760 Thin film magnetic head for a bidirectionally moveable recording medium  | 
| 11/26/1991 | US5068759 Thin film magnetic head of small size capable of certainly and stably connecting lead wires  | 
| 11/26/1991 | US5068757 Servo tracking for helical scan recorder  | 
| 11/26/1991 | US5068755 Sector pulse generator for hard disk drive assembly  | 
| 11/26/1991 | US5068754 Method and apparatus for measuring bit shift  | 
| 11/26/1991 | US5068753 Data reproducing circuit for memory system having an equalizer generating two different equalizing signals used for data reproduction  | 
| 11/26/1991 | US5068158 Magnetic recording medium and process for preparing the same  | 
| 11/26/1991 | US5068152 Magnetic recording medium  | 
| 11/26/1991 | US5068147 Soft magnetic thin film comprising alternate layers of iron carbide with either iron, iron nitride or iron carbon-nitride  | 
| 11/26/1991 | US5068145 Magnetic recording medium in which the magnetic layer contains a vinyl compound having an inner salt of an alkyl amino alkyl group  | 
| 11/26/1991 | US5068144 Perpendicular magnetic recording medium and method for producing the same  | 
| 11/26/1991 | US5068050 High stable magnetic thin film and cores  | 
| 11/26/1991 | US5068022 Process for sputtering multilayers for magneto-optical recording  | 
| 11/26/1991 | US5067230 Method for the manufacture of planar magnetic heads by making cavities in a non-magnetic wafer  | 
| 11/26/1991 | CA1292565C Data recorder and method  | 
| 11/21/1991 | EP0457395A1 Thin-film magnetic head  | 
| 11/21/1991 | EP0457394A1 Thin film magnetic head  | 
| 11/21/1991 | EP0457373A2 An information signal delay system  | 
| 11/21/1991 | EP0457372A2 Magnetic transducer having a common core for erasing and recording  | 
| 11/21/1991 | EP0457366A2 Glasslike carbon composite material  | 
| 11/21/1991 | EP0457299A1 Acicular metal iron fine particles, process for preparing same, magnetic coating composition and magnetic recording medium containing same  | 
| 11/21/1991 | EP0457278A2 Magnetoresistance effect type thin film magnetic head  | 
| 11/21/1991 | EP0457029A2 Coating apparatus  | 
| 11/21/1991 | EP0108060B1 Sector servo seek control  | 
| 11/19/1991 | US5067131 Apparatus and method for recording and/or reproducing a digital signal  | 
| 11/19/1991 | US5067039 High track density magnetic media with pitted optical servo tracks and method for stamping the tracks on the media  | 
| 11/19/1991 | US5067038 Rotary magnetic head device having two different kinds of heads  | 
| 11/19/1991 | US5067037 Slider with boss  | 
| 11/19/1991 | US5067035 Error prevention in a recording and reproducing device with at least one rotating head  | 
| 11/19/1991 | US5067032 Head driver  | 
| 11/19/1991 | US5066552 Low noise thin film metal alloy magnetic recording disk  | 
| 11/19/1991 | US5066539 Magnetic recording medium wherein the magnetic layer contains components having specified polar groups, particle diameters and surface areas or which are in specific relative ratios  | 
| 11/19/1991 | US5066534 Magnetic recording medium  | 
| 11/19/1991 | US5066347 Tape transport apparatus and method of introducing tape thereto  | 
| 11/19/1991 | US5065548 Surface treating tape cartridge and surface treating machine  | 
| 11/19/1991 | US5065547 Surface processing machine for hard disks and the like  | 
| 11/19/1991 | US5065500 Method of manufacturing a magnetic head assembly including a magnetic recording medium slide surface having grooves formed thereon  | 
| 11/19/1991 | US5065483 Method of lapping magnetic recording heads  | 
| 11/19/1991 | CA1292312C Multiple card recording system  | 
| 11/19/1991 | CA1292309C Magnetic recording apparatus  | 
| 11/19/1991 | CA1292284C Data acquisition and recording system  | 
| 11/16/1991 | CA2042650A1 Acicular metal iron fine particles, process for preparing same, magnetic coating composition and magnetic recording medium containing same  | 
| 11/14/1991 | WO1991017628A1 Video recorder with improved sound recording  | 
| 11/14/1991 | DE4014832A1 Videorecorder mit verbesserter tonaufzeichnung VCR with improved sound track  | 
| 11/14/1991 | DE4012823A1 Verfahren zur herstellung eines duennfilm-magnetbandkopfes Process for the preparation of a magnetic tape head duennfilm  | 
| 11/13/1991 | EP0456405A2 Digital signal recording apparatus  | 
| 11/13/1991 | EP0456371A2 Method of controlling seek movements by a magnetic head in a hard disk drive  | 
| 11/13/1991 | EP0456348A2 Method and apparatus for controlling head position in disk storage apparatus  | 
| 11/13/1991 | EP0456316A2 Compatible magnetic head assembly  | 
| 11/13/1991 | EP0456299A1 Arrangement and method for obtaining prerecorded digital music cassettes  | 
| 11/13/1991 | EP0456227A2 Magnetic recording medium  | 
| 11/13/1991 | EP0455749A1 Read channel detector for use in digital magnetic recording systems.  | 
| 11/13/1991 | CN2088733U Simple karaoke device for recorder  | 
| 11/13/1991 | CN1056179A Method of and arrangement for obtaining prerecorded digital music cassettes tape  | 
| 11/12/1991 | US5065390 Optical playback head  | 
| 11/12/1991 | US5065387 Method and apparatus for generating tracking error signals by means of an optical servo system  | 
| 11/12/1991 | US5065382 Disc memory apparatus  | 
| 11/12/1991 | US5065378 System for reproducing a signal recorded in a magnetic recording medium by using a magnetostatic wave  | 
| 11/12/1991 | US5065271 Thin film magnetic head apparatus and method of manufacturing the same  | 
| 11/12/1991 | US5065270 Thin film magnetic recording head with a low resistance coil formed by two processes  | 
| 11/12/1991 | US5065268 Load beam having an additional bend in a head-gimbal assembly  | 
| 11/12/1991 | US5065267 Multi-track magnetic head having different height head chips  | 
| 11/12/1991 | US5065260 Method for recording/reproducing expanded digital signals in conventional format  | 
| 11/12/1991 | US5065259 Magnetic recording and/or reproducing apparatus  | 
| 11/12/1991 | US5065258 Transmitting information from producer to end users through slant-track tape-to-tape copying at higher-than-standard signal transmission  | 
| 11/12/1991 | US5065094 Two terminal magnetoresistive sensor having DC blocking capacitor  | 
| 11/12/1991 | US5064730 Vinyl Chloride Interpolymer  | 
| 11/12/1991 | US5064721 Magnetic recording media  | 
| 11/12/1991 | US5064720 Magnetic recording medium containing a polyurethane binder resin having a betaine group in the form of an intermolecular salt  | 
| 11/12/1991 | US5064687 Method for making magnetic recording media  | 
| 11/12/1991 | US5064549 Preparation of stabilized chromium dioxide with sodium tetracarbonylferrate  | 
| 11/12/1991 | US5063712 Micro-burnishing flex head structure  | 
| 11/12/1991 | US5063653 Method of producing a core for a magnetic head  | 
| 11/06/1991 | EP0455472A1 Low noise amplifier with short circuit protection for signals from magnetoresistive element  | 
| 11/06/1991 | EP0455438A2 Magnetic recording system  | 
| 11/06/1991 | EP0455359A2 Thin film magnetic head and method of manufacture thereof  | 
| 11/06/1991 | EP0455293A1 Method of and arrangement for obtaining prerecorded digital music cassettes  | 
| 11/06/1991 | EP0455158A2 Recording and reproducing apparatus for using magneto-optical disc  | 
| 11/06/1991 | EP0455113A2 Fe based soft magnetic alloy, magnetic material containing same, and magnetic apparatus using the magnetic materials  | 
| 11/05/1991 | US5063469 Composite magnetic head assembly having reduced cross feed between waiting and reading heads  | 
| 11/05/1991 | US5063468 Compatible magnetic head assembly  | 
| 11/05/1991 | US5063467 Magnetic head with saturable gap and matrix device comprising a multiplicity of such heads  | 
| 11/05/1991 | US5063466 Rotary head type magnetic recording and reproducing apparatus  | 
| 11/05/1991 | US5063465 Head supporting mechanism of a recording/reproducing apparatus  | 
| 11/05/1991 | US5063464 Low profile suspension  |