Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
02/1987
02/17/1987US4644215 Piezoelectric vibration measurement head
02/17/1987US4643949 Magnetic recording tape
02/17/1987US4643947 Magnetic powder in binder of blend urea and epoxy resin
02/17/1987US4643942 Perpendicular magnetic recording medium
02/17/1987US4643941 Multilayer nonmagnetic support, ferromagnetic alloy and ferrite magnetic layers
02/17/1987US4643934 Magnetic recording medium
02/17/1987US4643915 Process for producing magnetic recording medium
02/17/1987CA1218149A1 Thermo-magnetic recording of binary digital information
02/17/1987CA1218147A1 Magnetic head for magnetic disk
02/17/1987CA1218146A1 Multiplex magnetic recording and reproduction system
02/11/1987CN86200643U Acoustic information quick transfer device
02/10/1987US4642795 Thermomagnetic recording system
02/10/1987US4642720 Nonmagnetic carbonaceous support
02/10/1987US4642719 Magnetic head assembly
02/10/1987US4642718 Optimum control of overwrite by record gap length selection
02/10/1987US4642717 Mechanism for lifting and lowering magnetic head in magnetic recording and reproducing device
02/10/1987US4642716 Magnetic transducer head assembly with support system therefor
02/10/1987US4642711 Video tape recorder including vertical recording heads
02/10/1987US4642709 Twin track vertical magnetic recording servo control method
02/10/1987US4642708 Magnetic recording and reproducing apparatus
02/10/1987US4642707 Magnetic tape video recorder with a one head drum
02/10/1987US4642705 Magnetic recording and reproduction apparatus, system and method
02/10/1987US4642704 Video signal reproducing apparatus using pilot signal system
02/10/1987US4642541 Track following servo for higher density disk files
02/10/1987US4642467 Electron beam irradiation apparatus
02/10/1987US4642270 Magnetic recording medium
02/10/1987US4642246 Perfluorinated polyether having functionalized group as lubricant
02/10/1987CA1217859A Amorphous magneto optical recording medium
02/10/1987CA1217841A Integrated radio location and communication system
02/05/1987DE3527373A1 Cleaning apparatus for the tape guiding parts of a video recorder
02/04/1987EP0210901A1 Magnetic recording device with rotating head
02/04/1987EP0210867A2 Video and audio signal recording and/or reproducing apparatus
02/04/1987EP0210855A2 Magneto-optical recording media
02/04/1987EP0210808A2 Recording disks and process
02/04/1987EP0210787A2 A video cleaning device
02/04/1987EP0210643A1 Device for treating ferromagnetic materials with magnetic pulses
02/04/1987EP0210600A1 Method of and apparatus for winding coil on toroidal core
02/04/1987EP0210529A2 Floppy disk drive interface circuit
02/04/1987EP0210500A2 Process for producing magnetic-recording media
02/04/1987EP0210400A1 Magnetic head supporting mechanism for a double surface type flexible disk
02/04/1987CN85104359A Magnetic reproducing device
02/04/1987CN85101735A 磁性的录音媒介 Magnetic recording media
02/03/1987US4641214 Rotary head assembly with pump-out type spiral grooves for more stable tape running
02/03/1987US4641213 Magnetic head
02/03/1987US4641209 Disc type information storage and retrieval system
02/03/1987US4641202 Skip field color recording apparatus
02/03/1987US4641198 Method of and apparatus for recording video signal associated with photographic image
02/03/1987US4640871 Magnetic material having high permeability in the high frequency range
02/03/1987US4640863 Magnetic recording media
02/03/1987US4640790 Reaction product of phosphate ester and an alkali silylalkylphosphonate
02/03/1987US4640755 Method for producing magnetic medium
01/1987
01/31/1987CN85101739A 磁性记录媒介 Magnetic recording media
01/31/1987CN85101734A Video signal recording apparatus
01/28/1987EP0210105A1 Long life monolithic magnetic head with integrated solenoid, and process for its manufacture
01/28/1987EP0210026A1 Head positioning mechanism for data cartridge recorder
01/28/1987EP0210001A1 Process for polishing non-electrolysis nickel plate, alumite or aluminium surface of a memory hard disc
01/28/1987EP0209692A2 A disk file servo control system with fast reduction of repeatable head position error
01/28/1987EP0209616A1 Method of manufacturing reinforced flexible disks
01/28/1987EP0209570A1 Head positioning assembly for a disk drive
01/28/1987CN85105857A Cassette tape recording and reproducing apparatus
01/27/1987US4639906 Magnetic recording on tracking controlled grooveless medium having magnetic and capacitance properties
01/27/1987US4639815 Chromium, iron, nickel, alloy layer over cobalt, nickel magnetic film
01/27/1987US4639813 Cleaning disket with internal paths for cleaning liquid
01/27/1987US4639812 Magnetic head and apparatus for automatically adjusting the azimuth position thereof
01/27/1987US4639811 Combined magnetic write and read head for the vertical magnetization of a corresponding recording medium
01/27/1987US4639810 Magnetic head for perpendicular magnetization
01/27/1987US4639809 Magnetic head
01/27/1987US4639808 Asymmetrical shields for controlling feedthrough in read/write heads
01/27/1987US4639807 Magnetic detector having magnetoresistive elements
01/27/1987US4639806 Thin film magnetic head having a magnetized ferromagnetic film on the MR element
01/27/1987US4639805 Combination of reproducing heads and a rotary transformer device
01/27/1987US4639804 Head loading system
01/27/1987US4639803 Thin film magnetic head slider
01/27/1987US4639799 Magnetic tape recording and reproducing apparatus with rotatable drum having inclined heads
01/27/1987US4639798 Disk drive having two interactive electromechanical control subsystems
01/27/1987US4639796 Arrangement for positioning a transducer to at least one track of a tape-shaped recording medium
01/27/1987US4639795 Signal transmission circuit
01/27/1987US4639794 Multiply pulsed magnetic recording
01/27/1987US4639400 Oxides of sodium and niobium
01/27/1987US4639389 Magnetic recording medium
01/27/1987US4639346 Method and apparatus for calendering magnetic tapes
01/27/1987US4639289 Process for producing a magnetic read - write head and head obtained by this process
01/27/1987US4639097 Apparatus for the inspection of combined read/write heads of data carrier disks in EDP installations
01/24/1987CN85101069A Regeneration-delaying method
01/24/1987CN85101052A 视频信号记录系统 Video signal recording system
01/24/1987CN85101051A Cassette tape player with a radio receiver
01/22/1987DE3624027A1 Magnetic recording and reproducing apparatus
01/22/1987DE3524097A1 Method and device for the electronic processing of stored video signals
01/21/1987EP0209195A2 Recording and/or reproducing apparatus
01/21/1987EP0209151A2 Apparatus for recording and/or reproducing an information signal
01/21/1987EP0209141A2 PCM Signal recording and reproducing apparatus
01/21/1987EP0209140A2 A method of measuring a minute flying height of an object and a magnetic disk apparatus
01/21/1987EP0208815A1 Dual transducer assembly with linear adjustment
01/21/1987EP0208763A1 Playback tracking control apparatus
01/21/1987CN86104002A Magnetic tape recording and/or reproducing apparatus wich recorded channel indicator
01/21/1987CN85204997U Magnetic card recording system
01/21/1987CN85105401A Auto-reverse tape recording and reproducing apparatus
01/20/1987US4638392 Magnetic head pressure pad device
01/20/1987US4638391 Vertical recording magnetic head having single core body bonded with main magnetic pole in guard layer
01/20/1987US4638388 Method of making a linearity standard magnetic tape