Patents
Sitemap › G11 - Information storage › G11B - Information storage based on relative movement between record carrier and transducer › G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
07/1985
07/02/1985US4526611 Process for producing superfines of metal
07/02/1985US4526131 Magnetic recording medium manufacturing apparatus
07/02/1985CA1189969A1 Differential-permeability field-concentrating magnetic writing head
07/02/1985CA1189822A1 Method for producing magnetic recording layers of thin-film disks
06/1985
06/26/1985EP0146410A2 Magnetic recording and/or reproducing element
06/26/1985EP0146323A2 Methods of making magnetic recording media(111111])
06/26/1985EP0146217A1 Servo heads
06/26/1985EP0146127A2 Controlled initiation chromium dioxide synthesis
06/26/1985EP0146100A2 Process for producing isotropical magnetic-iron oxides containing cobalt and their use
06/26/1985EP0146041A2 Data transfer system having a plurality of magnetic disk drives
06/26/1985EP0146003A1 Magnetic head with main and auxiliary poles for a perpendicularly magnetized recording medium
06/26/1985EP0145962A2 Digitally responsive method and apparatus for positioning a transducer of a storage apparatus
06/26/1985EP0145884A2 Method of making structural elements of unidirectional, crystalline plastics
06/26/1985EP0145836A2 Distance measuring interferometer and method of use
06/25/1985US4525828 Optical magnetic recording device
06/25/1985US4525824 Information recording system
06/25/1985US4525820 Function selecting method and system for an audio/video recording and reproducing system
06/25/1985US4525761 Transcriber with erasing device
06/25/1985US4525759 Aluminum storage disc
06/25/1985US4525755 Apparatus for recording and playing back magnetic tape cassettes and the like
06/25/1985US4525753 Circuit arrangement and method for magnetic recording/reproducing
06/25/1985US4525750 Automatic tracking system for multitrack recorders
06/25/1985US4525724 Magnetic recording head array for longitudinal magnetic printing with staggered head arrangement and clustered wiring
06/25/1985US4525723 Magnetic recording head
06/25/1985US4525696 Driver for rotating a magnetic playback head
06/25/1985US4525424 Flexible magnetic recording media having a polyester-polyurethane binder and chromium dioxide pigment
06/25/1985US4525392 Method of simultaneously applying multiple layers to web
06/25/1985CA1189624A1 Disturbance signal recording system
06/20/1985WO1985002706A1 Integrated magnetic head, particularly for data storage units
06/19/1985EP0145446A2 Vertical magnetic recording medium
06/19/1985EP0145375A2 Mechanism for intermittently wetting a cleaning tape
06/19/1985EP0145331A2 Rotary head deflection apparatus
06/19/1985EP0145229A1 Production of barium ferrite particles
06/19/1985EP0145200A1 Double-sided stretched surface recording disk
06/19/1985EP0145157A1 Thin film magnetic recording media
06/19/1985EP0145026A2 Film type magnetic recording medium and method of manufacturing the medium
06/19/1985EP0144862A2 Magnetic head for perpendicular magnetic recording system
06/19/1985EP0144851A2 Sputtering of a permalloy layer
06/19/1985EP0144719A1 A video signal recording apparatus
06/19/1985EP0035548B1 Data cartridge recorder with head positioning mechanism
06/18/1985US4524401 Magnetic transducer head utilizing magneto resistance effect with a bias field and partial saturation
06/18/1985US4524400 Magnetic transducer positioning apparatus
06/18/1985US4524398 Velocity control device for magnetic disc apparatus and method therefor
06/18/1985US4524397 Head positioning system for a disc data store
06/18/1985US4524396 Playback preamplifier for magnetic tape recordings
06/18/1985US4524108 Magnetic recording medium
06/18/1985US4524008 Dissolving metal oxide modifier in chromium oxide solution before adding to the ferromagnetic paste
06/18/1985CA1189200A1 Post treatment of perpendicular magnetic recording media
06/18/1985CA1189188A1 Recording and/or reproducing apparatus
06/18/1985CA1189187A1 Servo control of seek operation in magnetic disk drive
06/18/1985CA1189186A1 Read-write head thermal compensation system
06/18/1985CA1189183A1 Apparatus for evaluating slider flying dynamics
06/18/1985CA1188882A1 Method for manufacturing a magnetic powder for high density magnetic recording
06/12/1985EP0144150A1 Ferromagnetic material, ferromagnetic laminate and magnetic head
06/12/1985EP0144139A1 Magnetic erasing head
06/12/1985EP0144070A2 Magnetic recording medium
06/12/1985EP0144068A2 Data transfer apparatus for use with a magnetic disk cartridge
06/11/1985US4523247 Signal detection operating lever device of magnetic recording tape reproducing apparatus
06/11/1985US4523246 Flexible magnetic disk
06/11/1985US4523244 Magnetic head
06/11/1985US4523243 Magnetoresistive transducer using an independent recessed electromagnetic bias
06/11/1985US4523242 Magnetic head adjusting apparatus
06/11/1985US4523241 Head shift mechanism in a magnetic tape apparatus
06/11/1985US4523240 High precision floppy disc memory system
06/11/1985US4523238 Magnetic head preamplifier/driver
06/11/1985US4523237 Method and apparatus for recording and reproducing an analog signal
06/11/1985US4522885 Magnetic recording medium
06/11/1985US4522848 Process of preparing a recording member having a variable thickness recording layer
06/11/1985CA1188799A1 Optical recording device
06/11/1985CA1188798A1 Circuit arrangement for converting an information signal into a rectangular signal
06/11/1985CA1188796A1 Magnetic recording medium
06/11/1985CA1188793A1 Gimbal assembly for flying magnetic transducer heads
06/11/1985CA1188792A1 Electromagnetic transducer head assembly
06/06/1985WO1985002484A1 A disc type information storage and rerieval system
06/06/1985WO1985002483A1 Head loading/unloading apparatus for magnetic disc systems
06/06/1985WO1985002479A1 Slanted pole head for magnetic recording
06/05/1985EP0143654A2 Magnetic recording and reproducing method and apparatus for carrying out such a method
06/05/1985EP0143443A2 Magnetic disk head apparatus
06/05/1985EP0143433A2 Magnetic-recording medium
06/05/1985EP0143337A1 Magnetic recording medium
06/04/1985US4521818 One plus double omega squared radio frequency equalizer
06/04/1985US4521817 Circuit arrangement for magnetic recording apparatus having a multi-track head
06/04/1985US4521816 Magnetic recording method for digital signal
06/04/1985US4521486 Magnetic recording medium
06/04/1985US4521482 Magnetic recording medium
06/04/1985US4521481 Magnetic recording medium
06/04/1985US4521480 Magnetic recording media of the high recording density type comprising both titanium monoxide and magnetic alloy powders in a magnetic layer
06/04/1985US4521451 Encapsulated magnetic recording disk
06/04/1985US4520555 Apparatus and method for aligning and assembly of a gimbal, magnetic slider head, and flexure arm
06/04/1985CA1188417A1 Tape transport mechanism for cassette tape player
06/04/1985CA1188416A1 Cassette tape recording and/or reproducing apparatus
06/04/1985CA1188415A1 Cassette tape recording and/or reproducing apparatus
06/04/1985CA1188414A1 Mode changing mechanism for cassette tape player
06/04/1985CA1188411A1 Head tracking control system for a helical scan vtr
05/1985
05/29/1985EP0142948A2 Production of thin-walled cylindrical body of aromatic polyester
05/29/1985EP0142798A2 Magnetic-recording medium
05/29/1985EP0142796A2 Magnetic-recording medium
05/29/1985EP0142781A2 Magnetic head slider assembly
05/29/1985EP0142613A1 Method and apparatus for recording and replay of digital audio data
05/28/1985US4520414 Magnetic transducer structure with improved mechanical coupling and method of manufacturing
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