| 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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| 02/17/1987 | US4644215 Piezoelectric vibration measurement head | 
| 02/17/1987 | US4643949 Magnetic recording tape | 
| 02/17/1987 | US4643947 Magnetic powder in binder of blend urea and epoxy resin | 
| 02/17/1987 | US4643942 Perpendicular magnetic recording medium | 
| 02/17/1987 | US4643941 Multilayer nonmagnetic support, ferromagnetic alloy and ferrite magnetic layers | 
| 02/17/1987 | US4643934 Magnetic recording medium | 
| 02/17/1987 | US4643915 Process for producing magnetic recording medium | 
| 02/17/1987 | CA1218149A1 Thermo-magnetic recording of binary digital information | 
| 02/17/1987 | CA1218147A1 Magnetic head for magnetic disk | 
| 02/17/1987 | CA1218146A1 Multiplex magnetic recording and reproduction system | 
| 02/11/1987 | CN86200643U Acoustic information quick transfer device | 
| 02/10/1987 | US4642795 Thermomagnetic recording system | 
| 02/10/1987 | US4642720 Nonmagnetic carbonaceous support | 
| 02/10/1987 | US4642719 Magnetic head assembly | 
| 02/10/1987 | US4642718 Optimum control of overwrite by record gap length selection | 
| 02/10/1987 | US4642717 Mechanism for lifting and lowering magnetic head in magnetic recording and reproducing device | 
| 02/10/1987 | US4642716 Magnetic transducer head assembly with support system therefor | 
| 02/10/1987 | US4642711 Video tape recorder including vertical recording heads | 
| 02/10/1987 | US4642709 Twin track vertical magnetic recording servo control method | 
| 02/10/1987 | US4642708 Magnetic recording and reproducing apparatus | 
| 02/10/1987 | US4642707 Magnetic tape video recorder with a one head drum | 
| 02/10/1987 | US4642705 Magnetic recording and reproduction apparatus, system and method | 
| 02/10/1987 | US4642704 Video signal reproducing apparatus using pilot signal system | 
| 02/10/1987 | US4642541 Track following servo for higher density disk files | 
| 02/10/1987 | US4642467 Electron beam irradiation apparatus | 
| 02/10/1987 | US4642270 Magnetic recording medium | 
| 02/10/1987 | US4642246 Perfluorinated polyether having functionalized group as lubricant | 
| 02/10/1987 | CA1217859A Amorphous magneto optical recording medium | 
| 02/10/1987 | CA1217841A Integrated radio location and communication system | 
| 02/05/1987 | DE3527373A1 Cleaning apparatus for the tape guiding parts of a video recorder | 
| 02/04/1987 | EP0210901A1 Magnetic recording device with rotating head | 
| 02/04/1987 | EP0210867A2 Video and audio signal recording and/or reproducing apparatus | 
| 02/04/1987 | EP0210855A2 Magneto-optical recording media | 
| 02/04/1987 | EP0210808A2 Recording disks and process | 
| 02/04/1987 | EP0210787A2 A video cleaning device | 
| 02/04/1987 | EP0210643A1 Device for treating ferromagnetic materials with magnetic pulses | 
| 02/04/1987 | EP0210600A1 Method of and apparatus for winding coil on toroidal core | 
| 02/04/1987 | EP0210529A2 Floppy disk drive interface circuit | 
| 02/04/1987 | EP0210500A2 Process for producing magnetic-recording media | 
| 02/04/1987 | EP0210400A1 Magnetic head supporting mechanism for a double surface type flexible disk | 
| 02/04/1987 | CN85104359A Magnetic reproducing device | 
| 02/04/1987 | CN85101735A 磁性的录音媒介 Magnetic recording media | 
| 02/03/1987 | US4641214 Rotary head assembly with pump-out type spiral grooves for more stable tape running | 
| 02/03/1987 | US4641213 Magnetic head | 
| 02/03/1987 | US4641209 Disc type information storage and retrieval system | 
| 02/03/1987 | US4641202 Skip field color recording apparatus | 
| 02/03/1987 | US4641198 Method of and apparatus for recording video signal associated with photographic image | 
| 02/03/1987 | US4640871 Magnetic material having high permeability in the high frequency range | 
| 02/03/1987 | US4640863 Magnetic recording media | 
| 02/03/1987 | US4640790 Reaction product of phosphate ester and an alkali silylalkylphosphonate | 
| 02/03/1987 | US4640755 Method for producing magnetic medium | 
| 01/31/1987 | CN85101739A 磁性记录媒介 Magnetic recording media | 
| 01/31/1987 | CN85101734A Video signal recording apparatus | 
| 01/28/1987 | EP0210105A1 Long life monolithic magnetic head with integrated solenoid, and process for its manufacture | 
| 01/28/1987 | EP0210026A1 Head positioning mechanism for data cartridge recorder | 
| 01/28/1987 | EP0210001A1 Process for polishing non-electrolysis nickel plate, alumite or aluminium surface of a memory hard disc | 
| 01/28/1987 | EP0209692A2 A disk file servo control system with fast reduction of repeatable head position error | 
| 01/28/1987 | EP0209616A1 Method of manufacturing reinforced flexible disks | 
| 01/28/1987 | EP0209570A1 Head positioning assembly for a disk drive | 
| 01/28/1987 | CN85105857A Cassette tape recording and reproducing apparatus | 
| 01/27/1987 | US4639906 Magnetic recording on tracking controlled grooveless medium having magnetic and capacitance properties | 
| 01/27/1987 | US4639815 Chromium, iron, nickel, alloy layer over cobalt, nickel magnetic film | 
| 01/27/1987 | US4639813 Cleaning disket with internal paths for cleaning liquid | 
| 01/27/1987 | US4639812 Magnetic head and apparatus for automatically adjusting the azimuth position thereof | 
| 01/27/1987 | US4639811 Combined magnetic write and read head for the vertical magnetization of a corresponding recording medium | 
| 01/27/1987 | US4639810 Magnetic head for perpendicular magnetization | 
| 01/27/1987 | US4639809 Magnetic head | 
| 01/27/1987 | US4639808 Asymmetrical shields for controlling feedthrough in read/write heads | 
| 01/27/1987 | US4639807 Magnetic detector having magnetoresistive elements | 
| 01/27/1987 | US4639806 Thin film magnetic head having a magnetized ferromagnetic film on the MR element | 
| 01/27/1987 | US4639805 Combination of reproducing heads and a rotary transformer device | 
| 01/27/1987 | US4639804 Head loading system | 
| 01/27/1987 | US4639803 Thin film magnetic head slider | 
| 01/27/1987 | US4639799 Magnetic tape recording and reproducing apparatus with rotatable drum having inclined heads | 
| 01/27/1987 | US4639798 Disk drive having two interactive electromechanical control subsystems | 
| 01/27/1987 | US4639796 Arrangement for positioning a transducer to at least one track of a tape-shaped recording medium | 
| 01/27/1987 | US4639795 Signal transmission circuit | 
| 01/27/1987 | US4639794 Multiply pulsed magnetic recording | 
| 01/27/1987 | US4639400 Oxides of sodium and niobium | 
| 01/27/1987 | US4639389 Magnetic recording medium | 
| 01/27/1987 | US4639346 Method and apparatus for calendering magnetic tapes | 
| 01/27/1987 | US4639289 Process for producing a magnetic read - write head and head obtained by this process | 
| 01/27/1987 | US4639097 Apparatus for the inspection of combined read/write heads of data carrier disks in EDP installations | 
| 01/24/1987 | CN85101069A Regeneration-delaying method | 
| 01/24/1987 | CN85101052A 视频信号记录系统 Video signal recording system | 
| 01/24/1987 | CN85101051A Cassette tape player with a radio receiver | 
| 01/22/1987 | DE3624027A1 Magnetic recording and reproducing apparatus | 
| 01/22/1987 | DE3524097A1 Method and device for the electronic processing of stored video signals | 
| 01/21/1987 | EP0209195A2 Recording and/or reproducing apparatus | 
| 01/21/1987 | EP0209151A2 Apparatus for recording and/or reproducing an information signal | 
| 01/21/1987 | EP0209141A2 PCM Signal recording and reproducing apparatus | 
| 01/21/1987 | EP0209140A2 A method of measuring a minute flying height of an object and a magnetic disk apparatus | 
| 01/21/1987 | EP0208815A1 Dual transducer assembly with linear adjustment | 
| 01/21/1987 | EP0208763A1 Playback tracking control apparatus | 
| 01/21/1987 | CN86104002A Magnetic tape recording and/or reproducing apparatus wich recorded channel indicator | 
| 01/21/1987 | CN85204997U Magnetic card recording system | 
| 01/21/1987 | CN85105401A Auto-reverse tape recording and reproducing apparatus | 
| 01/20/1987 | US4638392 Magnetic head pressure pad device | 
| 01/20/1987 | US4638391 Vertical recording magnetic head having single core body bonded with main magnetic pole in guard layer | 
| 01/20/1987 | US4638388 Method of making a linearity standard magnetic tape |