Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
10/1988
10/12/1988EP0286064A2 Production of signal-carrying magnetic recording medium
10/12/1988EP0286045A2 Video recorder with standard and long-play modes
10/12/1988EP0285794A1 Method and apparatus for applying ultra-thin coatings to a substrate
10/12/1988EP0285744A2 Thermomagnetic duplication process
10/11/1988US4777553 Magnetic head
10/11/1988US4777551 Magnetic head supporting mechanism for flexible double-sided magnetic disks
10/11/1988US4777550 Shock absorbing apparatus for loading a magnetic disc on a disc drive
10/11/1988US4777545 Circuit arrangement for inhibiting writing on a magnetic disk during the settling time of a transducer head
10/11/1988US4777544 Method and apparatus for in-situ measurement of head/recording medium clearance
10/11/1988US4777540 Magnetic card reader with head stop arrangement
10/11/1988US4777503 Audio-video adapter for audiovisual equipment
10/11/1988US4777074 Grooved magnetic substrates and method for producing the same
10/11/1988US4777031 High temperature process for making fine magnetic particles
10/11/1988US4776997 Thickness-correcting coating method
10/11/1988US4776938 Method of producing magnetic disc
10/06/1988WO1988007741A1 Magneto-resistive thin film head for digital magnetic storage device
10/05/1988EP0285452A2 Magnetic disk apparatus using both servo-surface servo and data-surface servo
10/05/1988EP0285365A2 Tracking error signal producing apparatus
10/05/1988EP0285283A2 Disc memory servo indexing system
10/05/1988EP0284913A2 Magnetic-recording medium for testing, especially for gauging magnetic flying heads
10/05/1988CN88101596A Ferromagnetic film and head using the said film
10/05/1988CN88101322A Rotational magnetic head device
10/04/1988US4775910 Arrangement for cleaning a magnetic head in a magnetic tape recorder
10/04/1988US4775909 Magnetic head using a magnetic thin film and first, second and third core members
10/04/1988US4775908 Moving magnet actuator
10/04/1988US4775903 Sampled servo seek and track follow system for a magnetic disc drive
10/04/1988US4775902 Apparatus for recording and reading information on a magnetic disk with track following circuitry
10/04/1988US4775901 Apparatus and method for preventing unauthorized dubbing of a recorded signal
10/04/1988US4775897 Dubbing method and apparatus for digital recording reproducing apparatus including direct digital outputs
10/04/1988US4775825 Positioning method and apparatus therefor
10/04/1988US4775608 Generation of capacitive servo patterns on magnetic storage disks
10/04/1988US4775603 Rare earth-transition metal alloy recording layer, zinc sulfide-calcium fluoride antipeeling base layer
10/04/1988US4775595 Magnetic recording medium
10/04/1988US4775593 Flexible magnetic recording media having superior peel strength
10/04/1988US4775576 Stacks of magnetic and nonmagnetic layers
10/04/1988US4775571 Biaxially stretched polyparaphenylene sulfide film and process for producing the same
10/04/1988US4775553 Production of magnetic recording media
10/04/1988US4774755 Magnetic head and process for producing same
09/1988
09/29/1988DE3708540A1 Demagnetising device
09/28/1988EP0284495A2 Magnetic head for reading of very small width tracks and fabrication method
09/28/1988EP0284279A1 Pulse detection circuit using amplitude and time qualification
09/28/1988EP0284073A2 Vertical magnetic recording medium and method of manufacturing the same
09/28/1988EP0283852A1 Pigments in the form of platelets based on iron oxide
09/28/1988EP0283727A2 Method and apparatus for producing an audio magnetic tape recording at high speed from a preselected music libray
09/28/1988EP0283609A1 Resin for use in magnetic recording media and method of producing the same
09/28/1988CN88101515A Magnetic tour conversation manual
09/27/1988US4774616 Magnetic head having an integrated recording and playback head and an erasure head
09/27/1988US4774614 Magnetic head adjusting device
09/27/1988US4774613 Photosensor block
09/27/1988US4774612 Carriage moving device
09/27/1988US4774610 Transducer element assembly comprising a cantilever detachably coupled to a support
09/27/1988US4774606 Head wheel arrangement for a recorder with threaded spindle for adjustability
09/27/1988US4774605 Rotary head type digital signal playback
09/27/1988US4774602 Method for distinguishing original of a magnetically recorded medium from its duplicates
09/27/1988US4774601 Read channel for magnetic recording
09/27/1988US4774147 Magnetic recording medium
09/27/1988US4774140 Glass-like carbon material, method for manufacturing the same, and slider part for use with a recording medium
09/27/1988US4774130 Magnetic recording medium
09/27/1988US4774072 Iron(iii) salts in alkaline suspension
09/27/1988US4774012 Magnetic recording media, magnetic tapes
09/27/1988US4773938 Finely divided isometric hexaferrite pigments with a W-structure, processes for their preparation and their use
09/27/1988US4773931 Spindle ferromagnetic alloy particles
09/27/1988CA1242526A1 Read/write head positioner arrangement
09/22/1988WO1988007255A1 Fine positioning for disk drive
09/22/1988WO1988007253A1 Magnetic recording/reproducing apparatus
09/22/1988DE3639659A1 The recording of information
09/21/1988EP0283372A1 Thin layer magnetic head production method and use in a recording/reading head
09/21/1988EP0283273A2 Film for high density magnetic recording medium
09/21/1988EP0283262A2 Manufacturing magnetic recoding discs
09/21/1988EP0283033A2 Ceramic substrate and preparation of the same
09/21/1988EP0282995A2 Electro-magnetic shield structure for shielding a servo magnetic head of a magnetic disk storage device
09/21/1988EP0282573A1 Magnetic thin film data storage media
09/21/1988EP0282527A1 Method for making an amorphous aluminum-nitrogen alloy layer.
09/20/1988US4773094 Apparatus and method for calibrating recording and transmission systems
09/20/1988US4772976 Process for preparing magnetic layer and magnetic head prepared using the same
09/20/1988US4772974 Compact head and disk assembly
09/20/1988US4772972 Magnetic disc apparatus with head assembly aligning mechanism
09/20/1988US4772967 Magnetic recording apparatus in a helical scan system
09/20/1988US4772964 Recorded data reproducing apparatus capable of performing auto-gain adjustment
09/20/1988US4772929 Hall sensor with integrated pole pieces
09/20/1988US4772522 Magnetic powder, electroconductive material, binder and fatty ester
09/20/1988US4771956 Method of and apparatus for winding coil on toroidal core
09/20/1988CA1242275A1 Circuitry for characterizing speech for tamper protected recording
09/20/1988CA1242272A1 System for testing magnetic head/disk interfaces
09/15/1988DE3804733A1 Magneto-optical disc memory system
09/14/1988EP0282188A1 Recording medium and method of producing the same
09/14/1988EP0282159A2 Data signal delay generating apparatus
09/14/1988EP0281931A2 Magnetic head
09/14/1988EP0281873A2 Magnetic-recording support
09/14/1988EP0281598A1 Magnetic data storage media
09/14/1988CN88101132A Head loading mechanism for flexible disc drive
09/14/1988CN88101116A Magnetic tape recorder in the way of automatic reactive turning
09/13/1988US4771441 Synchronizing unit
09/13/1988US4771350 Magnetic reading/writing transducer for perpendicular recording
09/13/1988US4771349 Magnetoresistive read transducer
09/13/1988US4771348 Carriage moving apparatus for a magnetic disk
09/13/1988US4771347 Magneto-optical recording system
09/13/1988US4771346 Method and apparatus for rewriting on a magnetic disk on which data has been written by another apparatus having half the track density capability of the first apparatus
09/13/1988US4770952 Magnetic recording media dispersants
09/13/1988US4770951 Opaque