Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
07/1976
07/06/1976US3967368 Method for manufacturing and using an internally biased magnetoresistive magnetic transducer
06/1976
06/29/1976US3967318 Video magnetic transducer system with phase correcting network
06/29/1976US3967317 Predistortion of NRZ recording current for video recordings
06/29/1976US3967025 Magnetic recording material
06/29/1976US3966686 P-benzamide, p-phenylene terephthaloyl hydrazide recurring units
06/29/1976US3966510 Ferromagnetic powder for magnetic recording medium and method for preparation thereof
06/22/1976US3964939 Bodies including passivated metal particles
06/15/1976USRE28866 Magnetic recording coating
06/15/1976US3964104 Intermittent cleaner for rotating magnetic head
06/15/1976US3964103 Magnetic transducer with trim erase and housing therefor
06/15/1976US3964102 Data recording instrument having a moving recording head
06/08/1976US3962724 Method of and device for testing movable magnetic heads for ability to trace a predetermined spiral magnetic track without deviating therefrom
06/08/1976US3962641 Tuning apparatus
06/08/1976US3961990 Cobalt-nickel alloy, oxidizing with nitrogen dioxide
06/08/1976US3961946 Magnetic alloy for use in thermo and magneto printing
06/01/1976US3961374 Static magnetic erasing head
06/01/1976US3961373 Track indicating mechanism for magnetic tape recording and reproducing device
06/01/1976US3961372 Magnetic tape transport with slotted rotating head
06/01/1976US3961369 Rotating head apparatus having a protruding diameter headwheel which supports a protruding flying head
06/01/1976US3961299 Magnetic circuit having low reluctance
05/1976
05/25/1976US3959824 Write head assembly
05/25/1976US3959822 Magnetic tape transport for positive coupling of cassette tape reels
05/25/1976US3959820 System for increasing the number of data tracks in a magnetic recording system
05/25/1976US3959816 Method and apparatus for interpreting binary data
05/25/1976US3959553 Magnetic discs having metal support and a non-magnetic layer
05/25/1976US3959032 Cobalt-nickel
05/18/1976US3958273 Cassette-type head demagnetizer
05/18/1976US3958068 Ferromagnetism
05/18/1976US3958064 Magnetic recording tape
05/11/1976US3956771 Magnetic transducer with side mounted ferrite core and method of making the same
05/11/1976US3956770 Contact start-stop self-elevating air supported magnetic recording head
05/11/1976US3956769 Recording system having coinciding servo and data tracks
05/11/1976US3956767 Signal recording and/or reproducing apparatus with phase shifting to reduce signal amplitude at overlap points
05/11/1976US3956766 Counter resetting circuitry for magnetic disk system
05/11/1976US3956152 Magnetic recording media
05/11/1976US3956151 Hydrogen peroxide, chromium oxide, antimony, tellurium, or 1a metal, heat
05/11/1976US3955777 Self threading leader for a reel of tape
05/11/1976US3955466 Performance learning system
05/11/1976US3955295 Data bearing card having an aesthetic, magnetizable, colorless, transparent coating thereon
05/04/1976US3955215 Apparatus and method for forming a head drum assembly
05/04/1976US3955213 Intermediate product assembly of a magnetic head
05/04/1976US3955037 Magnetic discs having a multi-component binder
05/04/1976US3954641 Process for the preparation of sulfur modified ferromagnetic chromium oxide
05/04/1976US3954637 Method and composition for lubricating and lubricated substrates
05/04/1976US3954434 Method of manufacturing a ferrite magnetic transducer head
05/04/1976US3954163 High speed printer with intermittent print wheel and carriage movement
04/1976
04/27/1976US3953891 Soundhead restore mechanism for use in a disc machine
04/27/1976US3953889 Electronic head adjust system for removable magnetic discs
04/27/1976US3953888 Device for reading a binary-coded magnetic recording
04/27/1976US3953816 Position detecting system
04/27/1976US3953656 Magnetic recording medium and preparation thereof
04/27/1976US3953654 Nickel, boron, phosphous, magnetic memory storage
04/20/1976US3950845 Method for making recording head
04/13/1976US3950784 Apparatus for automatically adjusting the playback position of magnetic data recording device
04/13/1976US3950783 Disk file access mechanism
04/13/1976US3949951 Tape cartridge drive
04/06/1976US3949422 Tape recorder with pivotal erase head bearing
04/06/1976US3949421 Cassette tape recorder with heads mounted on a slide for adjustment
04/06/1976US3949419 Magnetic recording apparatus
04/06/1976US3949414 Gain control device of video signal reproducing apparatus
04/06/1976US3949345 Multiple magnetoresistance element
03/1976
03/30/1976US3947893 Recording cassette including compliant magnetic recording disc having flexible support means
03/30/1976US3947891 Static magnetic erasing head
03/30/1976US3947889 Electromagnetic transducers
03/30/1976US3947887 Transducer head contour and method of generating same
03/30/1976US3947886 Flexible disc recording apparatus
03/30/1976US3947882 Vending system for remotely accessible stored information
03/30/1976US3947881 Servo positioning error control for magnetic disk file
03/30/1976US3947880 Magnetic recording and reproducing apparatus with tape tension control
03/30/1976US3947876 Dual density 800 bpi NRZI and 1600 bpi PE read circuit for a digital magnetic tape transport
03/30/1976US3947875 Magnetic recorder test article and methods
03/30/1976US3947872 Process for thermoremanent duplication of magnetic recording master tape onto slave tape with reduced dimensional changes of slave tape
03/30/1976US3947502 Production of finely divided acicular magnetic iron oxides
03/23/1976US3946440 Dual erasing core structure for selectively erasing adjacent recording
03/23/1976US3946439 Recording apparatus for magnetic disks using both sides of the disk
03/23/1976US3946404 Direct current bias fields for magnetic printing
03/23/1976US3946206 Magnetic-type information card and method and apparatus for encoding and reading
03/16/1976US3945040 Push-push locking and release mechanism for tape cartridge players
03/16/1976US3945038 Read-write magnetoresistive transducer having a plurality of MR elements
03/16/1976US3945037 Feedback control system for linear position transducer
03/16/1976US3945035 Method and means for filtering and amplifying signal components of desired frequency
03/16/1976US3944992 Magneto-optical information storage device using photoconductive control element
03/16/1976US3944728 Video information recording and reproduction
03/16/1976US3943624 Method of manufacturing a magnetic head
03/09/1976US3943570 Semiconductor magnetic head
03/09/1976US3943569 Cassette tape transport with adjustable head
03/09/1976US3943568 Magnetic head height changing device
03/09/1976US3943012 Magnetic recording medium
03/02/1976US3942190 Method and apparatus for uninterrupted recording and reproduction in a multichannel mode of information on tape
03/02/1976US3941911 Thermally resistant magnetic tape
02/1976
02/24/1976US3940798 Core structure with L-shaped back member and magnetic bonding material
02/24/1976US3940797 Shielded magnetoresistive magnetic transducer
02/24/1976US3940794 Stacked flexible record disk storage apparatus having enhanced disk separation
02/24/1976US3940790 System for control of read/write on magnetic tape
02/17/1976US3939495 Method for adjusting the angle of attack of a floating magnetic head
02/17/1976US3939493 Tape lifter
02/17/1976US3939491 Tape apparatus including means to count length-related pulses for video editing
02/17/1976US3939489 Recording and reproducing apparatus
02/10/1976US3938193 Magnetic transducer head having an integral magnetic shield and wear indicator
02/10/1976US3938189 System for recording and playing back individual frames of video and related audio signals