Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
11/1982
11/02/1982US4357391 Magnetic recording medium
11/02/1982US4357378 Magnetic recording media
11/02/1982CA1134946A1 Device for positioning objects of low mass
11/02/1982CA1134945A1 Thin film magnetic recording heads
11/02/1982CA1134943A1 High density bias linearized magnetic recording system utilizing nyquist band-width partial response transmission
11/02/1982CA1134941A1 Recording digital signals
10/1982
10/28/1982WO1982003720A1 Unit of rotating magnetic heads
10/27/1982EP0063443A2 A digital waveform conditioning circuit
10/27/1982EP0063398A1 Magnetic-tape cassette apparatus and magnetic-head unit for use in conjunction with such apparatus
10/27/1982EP0063397A1 Magnetic sensor
10/26/1982USRE31069 Apparatus and method for record reorientation following error detection in a data storage subsystem
10/26/1982US4356524 Magnetic head
10/26/1982US4356523 Narrow track magnetoresistive transducer assembly
10/26/1982US4356520 Magnetic record/reproduction apparatus of a stationary head type
10/26/1982US4356232 Method for producing magnetic recording medium
10/26/1982US4356066 Passivating the aluminum-containing substrate exposed by pin holes in a resin coating; corrosion resistance
10/26/1982CA1134506A1 Magnetic head tracking control system
10/26/1982CA1134505A1 Quasi-vertical synchronizing signal generator
10/20/1982EP0062923A2 Magnetic sound record/playback apparatus
10/20/1982EP0062764A2 Process for producing a metallic magnetic thin-film plate, and an apparatus for performing this process
10/20/1982EP0062739A2 Multielement magnetic head assembly and method of making such assembly
10/19/1982US4355339 Transducer carriage assembly
10/19/1982US4355338 Duplicator
10/19/1982US4354909 Cluster ion beam deposition, cobalt, cobalt alloy, chromium dioxide
10/19/1982US4354908 Process for the production of magnetic recording members
10/19/1982CA1134033A1 Apparatus for recording and/or reproducing signals on a magnetic tape
10/19/1982CA1134032A1 Reversible cassette-type recording and/or reproducing apparatus
10/19/1982CA1134030A1 Reproducing apparatus
10/19/1982CA1134022A1 Circuit arrangement for the digital correction of time base errors of a television signal
10/19/1982CA1133972A1 Hydrodynamic thrust bearing
10/14/1982WO1982003399A1 Nitrocellulose composition and process for its preparation
10/13/1982EP0062454A2 Magnetic head apparatus for magnetic discs
10/13/1982EP0062279A1 Method of detecting the edge of a magnetic medium and apparatus to realize this method
10/13/1982EP0062265A1 Cleaning tape for magnetic heads
10/12/1982US4354212 Magnetic head and method of production thereof
10/12/1982US4354211 Magnetic tape apparatus
10/12/1982US4354210 Magnetic storage medium
10/12/1982US4354208 Magnetic recording medium and digital storage device including same
10/12/1982US4353937 Coating method
10/12/1982CA1133639A1 Method and apparatus for editing digital signals recorded on a record medium
10/06/1982EP0061769A2 Magnetic recording medium
10/05/1982US4353102 Thin-film magnetic head
10/05/1982US4353100 Magnetic recording system with signal-controlled bias and equalization
10/05/1982US4353098 Method of storing digital color television signals on magnetic tape
10/05/1982US4352859 Magnetic recording medium
10/05/1982CA1133124A1 Method of recording on magnetic tape attached to a card
10/05/1982CA1133123A1 Sectorized data path following servo system
10/05/1982CA1132790A1 Cobalt modified magnetic iron oxide
09/1982
09/30/1982WO1982003292A1 Magnetic recording medium
09/29/1982EP0061363A1 High-density information magnetoresistive read transducer
09/29/1982EP0061290A2 Magnetic head and method of producing same
09/29/1982EP0061194A2 Optical recording device
09/29/1982EP0061069A1 Magnetic transducer
09/29/1982EP0061050A1 Video recorder for recording an image carrier frequency-modulated by the video signal
09/29/1982EP0060977A2 Method of manufacturing a multi-element magnetic transducing head
09/28/1982US4352173 Dictation display device
09/28/1982US4352134 Magnetic head assembly with corrosion resistant conductive wire
09/28/1982US4352133 Magnetic disc memory
09/28/1982US4352130 Magnetic sound recorder having computer-controlled adjusting device
09/28/1982US4352048 Electromagnetic actuator apparatus
09/28/1982US4351698 Nickel-iron body covered with a titanium and photoresist layer etched with hydrogen fluoride and ferric chloride
09/28/1982US4351104 Method for manufacturing magnetic heads
09/28/1982CA1132707A1 Driving circuit for piezo-electric transducer
09/22/1982EP0060632A2 Thin film magneto-resistive sensors and methods for their manufacture
09/22/1982EP0060478A2 Method for recording or reproducing electrical signals on or from magnetic layers by the multitrack technique
09/22/1982EP0060358A1 Head support arm and head/arm assemblies for disk files
09/21/1982US4351010 Magnetic recording medium having a vertical axis of easy magnetization
09/21/1982CA1132254A1 Pick-up device for magnetically recorded information and method and system for using same
09/21/1982CA1132252A1 Time optimal function generator for disk file magnetic recording head servo position control loop
09/21/1982CA1132250A1 Video signal speed-change reproducing system
09/21/1982CA1132249A1 Video signal speed-change reproducing system
09/21/1982CA1132230A1 Device for the application of a control voltage across a piezo electric positioning element
09/21/1982CA1132229A1 Device for controlling a piezo-electric positioning element
09/21/1982CA1132170A1 Rotary mechanism with axial bearings
09/21/1982CA1132006A1 Method and apparatus for disorienting magnetic particles
09/15/1982EP0059935A1 Non-foamed thermoplastic polyurethane resin
09/15/1982EP0059727A1 Head position system for a disc data store.
09/14/1982US4349851 Magnetic head supporting mechanism for a magnetic disc apparatus
09/14/1982US4349849 Tape tracking device
09/14/1982US4349848 Recording circuit
09/14/1982US4349762 Fiber reinforced piezoelectric bender transducer
09/14/1982US4349608 Magnetic recording medium
09/14/1982US4349385 Flocculation by adding a volatile ammonium salt to an aqueous dispersion; magnetic tapes storage stability
09/14/1982CA1131771A1 Method of controlling the position of a write-read head and device for carrying out the method
09/14/1982CA1131770A2 Video disc systems
09/14/1982CA1131438A1 Method and alloying elements for producing high coercive force and high squareness magnetic film for magnetic recording medium
09/08/1982EP0059453A1 Apparatus and method for forward/reverse slow motion video reproduction
09/08/1982EP0059200A1 High density multitrack magnetic head and method of making same.
09/07/1982US4348706 Edge guide for a magnetic tape
09/07/1982US4348705 Random access flexible disk memory
09/07/1982US4348703 Flexible magnetic disc having track marking information recorded thereon
09/07/1982US4348699 Apparatus for recording and/or reproducing digital signal
09/07/1982US4348624 Thermal servo system for mechanical positioning
09/07/1982US4348430 Silicon-containing gothite layer
09/07/1982CA1131357A1 Tracking control apparatus for a rotary head, variable speed signal reproducing system
09/07/1982CA1131356A1 Analog recording on magnetic media
09/07/1982CA1131353A1 Video recording and reproducing apparatus having variable reproduction speeds
09/07/1982CA1131079A1 Magnetic recording material
09/03/1982EP0053164A4 High speed magnetic tape inspection equipment.
09/02/1982WO1982002968A1 Banking card for automatic teller machines and the like