| 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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| 04/24/1991 | EP0424138A2 Video signal recording-reproduction device |
| 04/24/1991 | EP0423879A1 Thin-film magnetic head |
| 04/24/1991 | EP0423878A1 Thin-film magnetic head |
| 04/24/1991 | EP0423770A2 Device for cleaning rotary magnetic head of magnetic recording and reproducing device and method of controlling same |
| 04/24/1991 | EP0423662A2 High track density magnetic media with pitted optical servo tracks and method for stamping the tracks on the media |
| 04/24/1991 | EP0423661A2 Dual magnetic head and method for writing on very high track density and conventional track density floppy disk |
| 04/24/1991 | EP0423356A1 Video tape recording system with dubbing function and remote control transmitter therefor |
| 04/24/1991 | EP0423216A1 A cleaning cassette for cassette tape recorders. |
| 04/24/1991 | EP0423166A1 Improvements in magnetic recording |
| 04/24/1991 | EP0423138A1 Thin-film magnetic head with magnetic arms composed of several individual magnetic layers. |
| 04/24/1991 | CN1050940A Arrangement of heads |
| 04/24/1991 | CN1012455B Recorder of turn back automatically |
| 04/23/1991 | US5010433 Magnetoresistive magnetic head having a shunt film of Nb |
| 04/23/1991 | US5010432 Rotary head drum apparatus comprising resilient electrical connectors |
| 04/23/1991 | US5010431 Flying-type composite magnetic head |
| 04/23/1991 | US5010430 Head slider arrangement for magnetic disk storage device |
| 04/23/1991 | US5010429 Floating magnetic head having improved static friction coefficient |
| 04/23/1991 | US5010425 Access controller for controlling the seek operation of a head relative to a recording medium |
| 04/23/1991 | US5010424 Recording apparatus for an information signal with a plural kinds of pilot signals using a plurality of heads |
| 04/23/1991 | US5010423 Tracking device and method |
| 04/23/1991 | US5009960 Magnetic recording medium prepared with polyurethane resin modified by a bicyclic amide acetal |
| 04/23/1991 | US5009929 Process for the preparation of magnetic recording medium |
| 04/23/1991 | US5009925 Process for the production of magnetic recording carriers |
| 04/23/1991 | US5009877 Stabilization of acicular ferromagnetic chromium dioxide |
| 04/18/1991 | WO1991005345A1 High resolution magnetooptical reading head |
| 04/18/1991 | WO1991005334A1 Disc drive with spindle motor rotor configuration in a removable disc cartridge |
| 04/18/1991 | WO1991004856A1 A composite polyester film |
| 04/17/1991 | EP0422916A2 Manufacturing method for a magnetoresistive head |
| 04/17/1991 | EP0422891A2 Magnetic recording medium |
| 04/17/1991 | EP0422806A2 Magnetoresistive transducer |
| 04/17/1991 | EP0422640A2 Magnetic disk apparatus and magnetic disk |
| 04/17/1991 | EP0422547A2 Magnetic recording medium |
| 04/17/1991 | EP0422030A1 Disk drive memory. |
| 04/17/1991 | CN1012399B Apparatus for storing and feeding endless tape and recorded tape duplicator system utilizing same |
| 04/16/1991 | US5008769 Rotary head type magnetic recording/reproducing device |
| 04/16/1991 | US5008768 Disk head assembly flexure with sloped ramp support structure |
| 04/16/1991 | US5008767 Gaps filled with glass |
| 04/16/1991 | US5008765 Method and apparatus for reading or writing on tape using a servo positioned multiple channel head |
| 04/16/1991 | US5008761 Readout circuit in magnetic recording device |
| 04/16/1991 | US5008357 Resin for magnetic recording media from vinyl chloride polymer with quaternary groups |
| 04/16/1991 | US5008147 Polycarbonate polyurethane binding of backing layer |
| 04/16/1991 | US5008128 Process for producing information recording medium |
| 04/16/1991 | US5007158 Method of manufacturing magnetic heads |
| 04/16/1991 | CA1283058C Cleaning device for magnetic head |
| 04/10/1991 | EP0421874A1 High-resolution magneto-optical playback head |
| 04/10/1991 | EP0421768A2 External magnetic field generating device for optical magnetic disk apparatus |
| 04/10/1991 | EP0421726A2 Method of producing composite type, metal-in-gap magnetic head core |
| 04/10/1991 | EP0421692A2 Magnetic data storage apparatus |
| 04/10/1991 | EP0421591A2 Method for depositing a protective film on a disk file slider |
| 04/10/1991 | EP0421489A2 Magnetic transducer head utilizing the magnetoresistance effect |
| 04/10/1991 | EP0421417A2 Magnetic recording and reproducing apparatus |
| 04/10/1991 | EP0421213A2 Chromium containing magnetic iron oxide pigments process for their fabrication and their application |
| 04/10/1991 | EP0421207A2 Magnetic recording medium |
| 04/10/1991 | EP0421189A1 Process for the preparation of finely divided pulverised hexagonal ferrite and its use in the preparation of magnetic recording media |
| 04/10/1991 | EP0421120A2 Thin film magnetic storage medium and method for the manufacture thereof |
| 04/10/1991 | CN1012328B Rigid polymeric substance capable of being employed as magnetic recording medium and the magnetic disk produced from this substrate |
| 04/10/1991 | CN1012327B Magnetic recording media and servd systems using same |
| 04/09/1991 | US5006946 Flexible polymeric resinous magnetic head supporting device |
| 04/09/1991 | US5006873 Implicit mid roll interrupt protection code for camera using dedicated magnetic tracks on film |
| 04/09/1991 | US5006589 Polyester film for magnetic recording media |
| 04/09/1991 | US5006406 Magnetic recording media |
| 04/09/1991 | US5006395 Iron carbide thin film magnetic recording medium |
| 04/09/1991 | US5006388 Multilayer; chromium alloy, and cobalt and nickel alloy |
| 04/04/1991 | WO1991004557A1 Method and apparatus for seek control of disk apparatus |
| 04/04/1991 | WO1991004555A1 Multitransducer head positioning servo for use in a bi-directional magnetic tape system |
| 04/04/1991 | WO1991004133A1 Apparatus for texturing rigid magnetic recording disks |
| 04/04/1991 | DE4030326A1 Combined magnetic video recording and playback head - has pair of pseudo gaps set as different angle to main gap to minimise noise |
| 04/03/1991 | EP0420755A1 Process for producing a magnetic recording head and head obtained by this process |
| 04/03/1991 | EP0420693A2 Disk data storage system with head positioning system |
| 04/03/1991 | EP0420660A2 A disc medium and a disc memory apparatus for reading information from said medium |
| 04/03/1991 | EP0420533A2 Manufacturing method and manufacturing apparatus of magnetic recording medium |
| 04/03/1991 | EP0420440A1 A method of and system for demodulating position information signals provided by a transducer |
| 04/03/1991 | EP0420439A1 Method of and apparatus for determining the position of a transducer |
| 04/03/1991 | EP0420438A1 A method of and apparatus for detecting position error of a transducer |
| 04/03/1991 | EP0420374A2 Method to compensate for tape slope and head azimuth errors |
| 04/03/1991 | EP0419615A1 Composite polyester films as final coating supports. |
| 04/03/1991 | CN1050455A Method and installation for copying magnetic tapes |
| 04/02/1991 | US5005097 Magnetic head with a coil and core supporting bobbin |
| 04/02/1991 | US5005096 Magnetoresistive read transducer having hard magnetic shunt bias |
| 04/02/1991 | US5005095 Magnetic recording system |
| 04/02/1991 | US5005089 High performance, high capacity micro-winchester disk drive |
| 04/02/1991 | US5004652 High-coercivity thin-film recording medium and method |
| 04/02/1991 | US5004649 Layer of syndiotactic styrene based polymer having two surfaces. ametal layer disposed on one surface |
| 04/02/1991 | US5004628 Controlled application of polyacrylamide solution onto moving web; uniformity |
| 04/02/1991 | US5004554 Fluorine-containing polyether and lubricant comprising the same |
| 04/02/1991 | US5003919 Apparatus for stabilization treatment of ferromagnetic metal powder |
| 04/02/1991 | US5003688 Method of producing a magnetic head core having track-width defining cut outs formed on opposite side of a magnetic gap |
| 04/02/1991 | CA1282344C Low-pitched sound creator |
| 03/28/1991 | DE3931342A1 Video signal reproduction for magnetic tape recorder - setting respective positioners to first oblique track with half-frame signal(s) |
| 03/27/1991 | EP0419345A2 Magnetic disk storage apparatus with improved vibration resistance |
| 03/27/1991 | EP0418804A1 Soft magnetic thin film |
| 03/27/1991 | EP0418372A1 Magnetic reading head with magnetoresistance for perpendicular recording and method for making such head. |
| 03/27/1991 | EP0290522B1 Device for generating and detecting magnetic material structures at atomic levels |
| 03/27/1991 | CN2074048U Sound periodical |
| 03/27/1991 | CN1012234B Ferromagnetic film and head using the said film |
| 03/27/1991 | CA2008477A1 Method to compensate for tape slope and head azimuth errors |
| 03/26/1991 | US5003423 Vertical recording magnetic head |
| 03/26/1991 | US5003421 Automatic reverse tape recorder with head turn-over |
| 03/26/1991 | US5003420 Low profile head-load beam slider arm for disk drive |
| 03/26/1991 | US5003419 Magnetic head supporting mechanism |