Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
12/1986
12/03/1986EP0203604A2 Polyester film for magnetic recording media
12/03/1986EP0203582A2 Method and apparatus for making magnetic recording medium
12/03/1986EP0203470A2 Process for the production of particulate acicular hexagonal ferrites and their use in the production of magnetic-recording media and plastoferrites
12/03/1986EP0203420A1 Apparatus, especially a video recorder
12/03/1986EP0203207A1 System for testing magnetic head/disk interfaces
12/03/1986EP0203205A1 Magnetic recording medium and process for its manufacture
12/03/1986EP0203171A1 Foil with two surfaces which run essentially plane-parallel to one another, and process and device for its production.
12/03/1986CN85104356A Magnetic recording and reproducing method
12/02/1986US4627043 Head shifting apparatus
12/02/1986US4626947 Thin film magnetic head
12/02/1986US4626946 Twin track vertical read-write head structure
12/02/1986US4626945 Magnetic head
12/02/1986US4626944 Positioning device for scanning means in a disk drive unit
12/02/1986US4626943 Torsional actuator for loading and unloading flexible disk drive
12/02/1986US4626942 Power-saving data transfer apparatus with a flexible magnetic disk or the like
12/02/1986US4626935 Device for coupling cassette tape recorder to microcomputer
12/02/1986US4626931 Contact printing apparatus with presettable means indicating number of copy and master tape life expectancy
12/02/1986US4626480 Magnetic recording medium comprising a vacuum-deposited magnetic film of a magnetic material and a tungsten oxide and method for making the same
12/02/1986US4626469 Mixture of fine and coarse carbon black particles
12/02/1986US4626463 Acicular iron oxide, head cleaning, magnetic particles with topical lubricant
12/02/1986US4626371 Magnetic composite
12/02/1986US4625384 Method of making a recording disc
12/02/1986CA1214871A1 Hybrid read-write head for perpendicular recording media
12/02/1986CA1214870A1 Write data compensating circuit in magnetic recorder
11/1986
11/27/1986EP0110901A4 Data synchronization.
11/26/1986EP0203002A2 Longitudinal magnetic coated recording medium
11/26/1986EP0202645A2 Method and apparatus for making magnetic recording media
11/26/1986EP0202480A2 Positioning misaligned disk heads
11/26/1986EP0202343A1 Vertical magnetic head
11/26/1986EP0202284A1 Device for cleaning tape contacting members in video tape recorders and the like apparatus
11/26/1986EP0202250A1 Magnetic recording medium with lubricant
11/26/1986CN86103579A Disk arrangement system
11/25/1986US4625251 Tape recorder
11/25/1986US4625250 Multi-track magnetic head
11/25/1986US4625249 Head holding mechanism of magnetic disk device
11/25/1986US4625248 Ultra-thin tape cassette transport
11/25/1986US4625245 Magnetic recording
11/25/1986US4625239 Television circuit for picture flicker correction
11/25/1986US4625238 Method and apparatus for detecting a dead zone in the transfer function of a signal processing system
11/25/1986US4624894 Magnetic recording medium
11/25/1986US4624892 Magnetic recording medium
11/25/1986US4624883 Magnetic recording medium
11/25/1986US4624564 Calibration standards for flying height testers
11/25/1986US4624048 Pure aluminum
11/25/1986CA1214326A1 Disk or wafer handling and coating system
11/20/1986WO1986006865A1 Slider assembly with dynamically positionable transducer
11/20/1986WO1986006864A1 Flux sensitive tracking
11/20/1986WO1986006863A1 Edge guided magnetic tape tracking
11/20/1986WO1986006862A1 Flux sensitive tracking
11/20/1986EP0202033A1 A degaussing apparatus
11/20/1986EP0201906A2 Digital signal recording and reproducing system
11/20/1986EP0201879A1 Method and apparatus for manufacturing part with coil
11/20/1986EP0201822A2 Process for the production of needle-shaped iron oxides containing cobalt
11/20/1986EP0201715A2 Surface-treated polyester film
11/20/1986EP0201587A1 Slider with anti-stiction boss
11/19/1986CN86103704A Impoved magnetic recording medium curing process
11/19/1986CN85103659A Read/write head positioning apparatus
11/19/1986CN85103587A Magnetic disc reproducing apparatus
11/18/1986US4623947 Magnetic head device
11/18/1986US4623944 Magnetic tape guide drum with grounding device
11/18/1986US4623943 Head positioning apparatus using a DC motor
11/18/1986US4623942 Method and arrangement for detecting error signals in a disk-drive, and a magnetic test disk therefor
11/18/1986US4623941 PCM type record-playback system
11/18/1986US4623940 Magnetic reproducing apparatus
11/18/1986US4623867 For detecting signals recorded on a magnetic medium
11/18/1986US4623710 Heat resistance, transparency, surface resistance
11/18/1986US4623570 Stable stretched surface recording medium
11/18/1986US4623501 Method and apparatus for coating a substrate
11/18/1986US4623439 Nickel-cobalt-iron
11/18/1986US4623405 Metallic magnetic powder
11/18/1986CA1214269A1 Signal translating circuits
11/18/1986CA1214267A1 Method and apparatus for recording and reproducing an analog signal
11/18/1986CA1214265A1 Method and apparatus for recording an information signal
11/12/1986EP0201305A2 Smooth, low-friction magnetic recording medium
11/12/1986EP0201255A2 Magnetic head and method of producing same
11/12/1986EP0201068A2 Process for the production of needle-shaped ferromagnetic metallic iron oxides principally containing iron
11/12/1986EP0200992A2 Process for producing isometric iron oxides containing cobalt and titanium
11/12/1986CN85108686A Magnetic sound trace on movie film
11/11/1986US4622617 Cleaning apparatus for a disc drive
11/11/1986US4622616 Thin film magnetic head for equalizing outputs of a two-channel tracking device
11/11/1986US4622615 Magnetic transducer for high density recording or writing
11/11/1986US4622614 Magnetic erasing head
11/11/1986US4622613 Thin film magnetic head
11/11/1986US4622609 Read/write head positioning apparatus
11/11/1986US4622608 Carriage traveling mechanism for floppy disc drive
11/11/1986US4622606 Magnetic tape recorder
11/11/1986US4622605 Tape cassette adapter having a motor for driving tape draw-out means thereof to form a predetermined tape path therein
11/11/1986US4622604 Magnetic head controlling apparatus
11/11/1986US4622603 Head positioning system for magnetic recording/playback apparatus
11/11/1986US4622602 System for recording and/or reproducing digital data
11/11/1986US4622601 Flexible disc device for media of different track densities
11/11/1986US4622599 Write data transition detector
11/11/1986US4622597 Sound and video multiplex recording system
11/11/1986US4622516 Magnetic tachometer for disk drives
11/11/1986US4622273 Recording medium for perpendicular magnetization
11/11/1986US4622271 Magnetic recording medium
11/11/1986US4622159 Method for the preparation of fine hexagonal ferrite powders, in particular, for magnetic recording
11/06/1986WO1986006534A1 External magnetic field reversing apparatus for photomagnetic disks
11/05/1986EP0200536A2 Magnetic tape recording and/or reproducing apparatus with rotary head assembly
11/05/1986EP0200265A1 Method of manufacturing magnetic head cores