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)
06/1990
06/27/1990EP0375660A2 Phosphorylated reaction products and compositions incorporating such products
06/27/1990EP0375659A2 Phosphorylated reaction products and compositions incorporating such products
06/27/1990EP0375646A2 Magnetoresistive read transducer having hard magnetic shunt bias
06/27/1990EP0375358A2 Helical scan tape record apparatus and method
06/27/1990EP0375309A2 Slave magnetic recording media and its production method
06/27/1990EP0374907A2 Method for recording and/or reproducing a signal
06/27/1990EP0374820A2 Magnetic recording medium
06/27/1990EP0374813A2 Magnetic recording medium
06/27/1990EP0374546A2 Magnetic recording media in disc form, process for their production and information memory containing these magnetic recording media
06/27/1990EP0374169A1 Lifting device for rotors
06/27/1990EP0374155A1 Magnetic tape as information carrier
06/27/1990EP0279734B1 Substrate for a magnetic disc memory and process for its production
06/27/1990EP0140977B1 Magnetic head and method of manufacture thereof
06/27/1990CN2058781U 磁带录音机 Tape recorder
06/27/1990CN1043396A Camera apparatus for magnetically recording on film cross reference to related applications
06/26/1990US4937802 Magnetic head drive circuit
06/26/1990US4937801 Magneto-optical recording and reproducing apparatus with magnetic field controller
06/26/1990US4937800 Method of recording using selective-erasure directions for magnetooptic record members
06/26/1990US4937695 Recording and/or reproducing apparatus
06/26/1990US4937693 Staggered heads for minimizing disk spacing in a disk drive
06/26/1990US4937692 Crash stop for magnetic disk drive
06/26/1990US4937691 Recording and/or reproducing apparatus for controlling thermal expansion problems in disk drives
06/26/1990US4937689 Apparatus for controlling seek strategy of read/write head in a disk drive
06/26/1990US4937679 Dual deck video recording apparatus having enhanced copy protection and method for providing enhanced copy protection to such a recording apparatus
06/26/1990US4937438 Magnetic encoding apparatus and method
06/26/1990US4937227 Low signal to noise ratio
06/26/1990US4937151 Coating composition with vinyl chloride polymer for magnetic recording medium
06/26/1990US4937098 Surface treating ferromagnetic alloy powders with a triazine thiol, dispersing in binder, and coating on nonmagnetic support
06/26/1990US4937093 Determining thickness from measured x-ray intensity on calibration curve
06/26/1990US4936929 Refractory amorphous Co-Ta-Hf alloy
06/26/1990CA1270947A1 Automatic tracking apparatus
06/26/1990CA1270944A1 Apparatus for reproducing a digital signal
06/26/1990CA1270942A1 Video and audio signal recording and reproducing apparatus
06/22/1990CA2005672A1 Helical scan tape record apparatus and method
06/21/1990DE3940098A1 Duennfilm-magnetkopf mit in einem substrat versenkten teilen sowie verfahren zu dessen herstellung Duennfilm-magnetic head with share in a recessed substrate and process for its manufacture
06/21/1990DE3842246A1 Verfahren zur exakten ausfuellung einer wannenartigen vertiefung Method for accurately filling in a trough-like depression
06/20/1990EP0374129A2 Image information recording apparatus
06/20/1990EP0373856A2 A magnetic recording medium
06/20/1990EP0373793A2 Lift-off process for patterning shields in thin magnetic recording heads
06/20/1990EP0373710A1 Device for recording an audio and a video signal
06/20/1990EP0373707A2 Magneto optic data recording system with variable field strength, actuator therefor and method of providing
06/20/1990EP0373563A2 Magnetic recording medium
06/20/1990EP0373435A2 Transfer film with a magnetic layer
06/20/1990EP0373426A2 Inorganic pigments coated with polyorganosiloxane
06/20/1990EP0373179A1 Inline magnetic head assembly for use in a cassette loaded recorder.
06/19/1990US4935835 Magnetic media containing reference feature and methods for referencing magnetic head position to the reference feature
06/19/1990US4935832 Recording heads with side shields
06/19/1990US4935831 Cassette tape drive apparatus
06/19/1990US4935830 Electro-magnetic shield structure for shielding a servo magnetic head of a magnetic disk storage device
06/19/1990US4935827 Dynamic head position tracking control for a magnetic tape playback system
06/19/1990US4935824 Information recording apparatus
06/19/1990US4935605 Apparatus for correcting curl of magnetic recording medium
06/19/1990US4935314 Interstitially soluble to iron; corrosion resistance
06/19/1990US4935311 Magnetic multilayered film and magnetic head using the same
06/19/1990US4935278 Thin film magnetic recording disk and fabrication process
06/16/1990CA2005675A1 Styrene-based resin composite material and use thereof
06/16/1990CA2005334A1 Device for recording an audio and a video signal
06/14/1990WO1990006575A1 Magnetic recording medium and process for manufacturing it
06/14/1990WO1990006574A1 A magnetic recording head having i-bar core structure
06/14/1990WO1990006572A2 Process and device for cleaning magnetic heads
06/14/1990WO1990006536A1 Camera apparatus for magnetically recording on film
06/14/1990WO1990006346A1 Magnetic coating compositions containing fluoropolyols
06/13/1990EP0372990A2 Magnetic recording apparatus
06/13/1990EP0372686A1 Method of producing a ferrite magnetic head core
06/13/1990EP0372684A2 Data storage apparatus
06/13/1990EP0372481A2 Magnetic recording and reproducing apparatus
06/13/1990EP0372420A2 Magnetic recording-reproducing apparatus and magnetoresistive head for use therewith
06/13/1990EP0372192A1 Camera apparatus for magnetically recording on film
06/13/1990EP0372015A1 Streaming tape drive with direct block addressability
06/13/1990EP0139018B1 Magnetic transducer head assembly having a single magnetic pole type for perpendicular mode recording
06/13/1990DE3841085A1 Magnetic recording medium
06/13/1990CN1043035A Circuitry for reversing magnetic field
06/13/1990CN1043033A Flexible flat cable for connecting head of automatic reverse type tape recorder
06/13/1990CN1008411B Magnetic recording carrier
06/13/1990CA2005152A1 Inorganic pigments having improved properties
06/12/1990US4933795 Floppy disc read and write head having two separate read and write cores for multiple track density and recording frequencies
06/12/1990US4933793 Magnetic disc drive
06/12/1990US4933792 Apparatus and method for damping head positioners for high performance disc drivers
06/12/1990US4933791 Head arm flexure for disc drives
06/12/1990US4933786 Fault tolerant index patterns and decoding means
06/12/1990US4933785 Disk drive apparatus using dynamic loading/unloading
06/12/1990US4933784 Automatic head position tracking system for video signals recorded in a segmented format
06/12/1990US4933783 AGC circuit with transient response control in a magnetic disk unit
06/12/1990US4933619 Stepping motor servo control system for a floppy disk drive
06/12/1990US4933209 Method of making a thin film recording head apparatus utilizing polyimide films
06/12/1990US4933014 Cobalt compound coating
06/12/1990US4933004 Preparation of acicular ferromagnetic metal particles of substantially iron
06/12/1990CA1270325A1 Means for indexing a rotary arm in small angular steps
06/07/1990DE3939625A1 Magnetischer aufzeichnungstraeger Magnetic record carrier
06/06/1990EP0371961A2 Magnetic recording/reproduction apparatus
06/06/1990EP0371778A2 Automatic tracking apparatus
06/06/1990EP0371777A2 Magnetic disk drive
06/06/1990EP0371561A2 System comprising a magnetic head and a movable magnetic information carrier
06/06/1990EP0371384A2 Process for producing magnetic iron oxide particles for magnetic recording
06/06/1990CN2058033U Sound transmitting card
06/06/1990CN2058032U Magnetic head installation plate press mechanism of tape recorder
06/06/1990CN1008310B Magnetic recording playback unit
06/06/1990CN1008309B Supporting device for magnetic tape recorder in way of reactive turning
06/05/1990US4931892 Long life magnetoresistive head of the non-shunt bias type
06/05/1990US4931889 Method and apparatus depending on the selected power source for controlling the positioning of a recording/reproducing apparatus
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