Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
03/1992
03/11/1992CN2098722U Solid-electronic recording and reproducing mechanism having continuously adjustable recording and reproducing time and tone
03/11/1992CA2049226A1 Coated article having improved adhesion to organic coatings
03/10/1992US5095471 Velocity estimator in a disk drive positioning system
03/10/1992US5095397 Thin film magnetic head of embodied recording and reproducing transducer type
03/10/1992US5095396 Unitary E-block assembly for use in a disk drive
03/10/1992US5095395 Magnetic disk storage device having a return mechanism for automatically positioning heads to non-data area
03/10/1992US5095393 Tri-phase servo pattern for providing positioning information in a magnetic disk drive
03/10/1992US5095392 Digital signal magnetic recording/reproducing apparatus using multi-level QAM modulation and maximum likelihood decoding
03/10/1992US5095391 Recording apparatus with recording section power supply control
03/10/1992US5095390 Apparatus for storing and feeding endless tape and recorded tape duplicator system utilizing the same
03/10/1992US5095310 Method and apparatus for using synthesized analog data for testing read circuitry in a magnetic tape data storage subsystem
03/10/1992US5094916 Containing sulfonate groups or salts
03/10/1992US5094910 Magnetic recording medium
03/10/1992US5094908 Backing of carbon black and a binder
03/10/1992US5094904 Magnetic recording medium
03/10/1992US5094898 Reliable recording using flying magnetic head
03/10/1992US5094897 Magnetic recording medium comprising a glass substrate and a gamma Fe2 3 magnetic thin film with specified X-ray diffraction and surface roughness
03/10/1992US5094896 Reliable recording using flying magnetic head
03/10/1992US5093980 Method for making a multitrack head
03/10/1992CA1297184C Protective device agains the surrounding magnetic flux
03/06/1992CA2038073A1 Tape transport with multi-gap read/write head for utilization with leader block tape cartridge
03/05/1992WO1992000649A1 Dual deck video cassette recorder with copy prevention
03/05/1992WO1991009275A3 Integrated vehicle positioning and navigation system, apparatus and method
03/05/1992DE4128816A1 Reverse side-coated magnetic recording medium - with reverse coating contg. heat- and photohardening resins and being heat-hardened after rolling up
03/04/1992EP0473417A2 Digital signal reproducing apparatus
03/04/1992EP0473416A2 Video signal reproducing apparatus
03/04/1992EP0473412A1 Digital signal recording method
03/04/1992EP0473092A2 Method of manufacturing floating type magnetic head
03/04/1992EP0472802A2 Electronic device for the fast duplication of magnetic tapes
03/04/1992EP0472603A1 Improved magnetic disk drive apparatus and method
03/04/1992CN2098072U Multi-track magnetic tape cycle record device
03/03/1992US5093817 Method and apparatus for recording information on an opto-magnetic recording medium by applying a modulated light beam while applying a magnetic field alternating with a constant period
03/03/1992US5093753 Magnetic reading head using the hall effect
03/03/1992US5093751 Carry noise measuring system for magnetic recording medium
03/03/1992US5093211 Magnetic recording medium comprising a surface treatment layer provided on the magnetic layer of specified fluorocarboxylic acid amine salts
03/03/1992US5093193 Magnetic recording medium and method of making it
03/03/1992US5093192 Magnetic recording medium
03/03/1992US5093191 Magnetic recording medium containing ferromagnetic particles with specified crystallite sizes and wherein the ratio of chlorine to iron at the surface is within a specified range
03/03/1992US5093173 Magnetic disc comprising a substrate of an amorphous glass continuous phase dispersed with crystal particles which produce a structurally defined surface on the substrate
03/03/1992US5093172 Magnetic recording medium comprising a vinyl chloride copolymer containing a polar group and a polyurethane containing a polar group and specified aromatic or alicyclic units
03/03/1992CA1296799C Twin track vertical magnetic recording servo control method and apparatus
03/01/1992WO1992003493A1 High purity aromatic polyester, a film and other products and devices containing such polyester as well as a process for preparing such film
03/01/1992CA2071477A1 High purity aromatic polyester, a film and other products and devices containing such polyester as well as a process for preparing such film
02/1992
02/27/1992DE4127518A1 Magnetic disc storage device for connecting to host processor - has start=up data region for data transferred to buffer memory at system start=up time
02/26/1992EP0472397A1 Apparatus and method of reproducing synchronization signal in disc storage system
02/26/1992EP0472375A2 Data conversion method, pilot signal formation method using the same and rotary magnetic head device using the same
02/26/1992EP0472342A2 Micro-displacement type information detection probe device and microscope and information processing device by use thereof
02/26/1992EP0472188A1 Magnetic head
02/26/1992EP0472187A1 Planar thin film magnetic head
02/26/1992EP0472162A1 Magnetic head
02/26/1992EP0472145A1 Ferromagnetic metal particles and magnetic recording medium containing them
02/26/1992EP0472047A2 A magnetic recording medium and its production method and a magnetic recording apparatus
02/26/1992EP0472031A2 Thin film structures for magnetic recording heads
02/26/1992EP0471946A2 High magnetic moment materials and process for fabrication of thin film heads
02/26/1992EP0471672A1 Tape storage device.
02/26/1992CN2097434U Cassette demagnetizing tape for magnetic head
02/25/1992US5091811 Read head mounting structure for magnetic card reader
02/25/1992US5091810 Floating type magnetic head having head core affixed to outside surface of slider
02/25/1992US5091808 Two-motor servo mechanism system for a magnetic disk drive
02/25/1992US5091806 Rotating magnetic recording medium recording/playback apparatus
02/25/1992US5091805 Apparatus and method for recording and/or reproducing a digital signal
02/25/1992US5091682 Screw adjusting apparatus
02/25/1992US5091270 Magnetic recording medium lubricated by a mixture of methyl branched iso ester compounds synthesized by the oko process
02/25/1992US5091269 Magnetic recording medium lubricant consisting of an amine salt of carboxylic acid, an amine salt of perfluoroalkyl carboxylic acid or an fluoro amine salt of perfluoro carboxylic acid
02/25/1992US5091268 Magnetic recording medium lubricated by a three component fatty acid ester-fatty acid amide composition
02/25/1992US5091266 Soft-magnetic film having saturation magnetic-flux density and magnetic head utilizing the same
02/25/1992US5091249 Magnetic recording medium lubricant comprising two different fluorinated polyethers each having specified terminal groups
02/25/1992US5091238 Floppy disk comprising a cellulosic resin with a polar group in a side chain and perromagnetic particles of a specific surface area
02/25/1992US5091225 Magnetic disc member and process for manufacturing the same
02/25/1992US5090111 Process for producing a magnetic recording head
02/20/1992WO1992002931A1 Thermomagnetic recording system having high storage density and direct-overwrite capability
02/20/1992WO1992002929A1 Sample data position error signal detection for digital sector servo
02/20/1992WO1992002928A1 Precompensation and read equalization
02/20/1992WO1992002373A1 Magnetic card
02/19/1992EP0471551A2 Video equalizing circuits
02/19/1992EP0471527A2 Magnetic recording medium and information recording-reproduction method using the same
02/19/1992EP0471367A2 Servo signal recording method and apparatus
02/19/1992EP0471360A1 Magnetic recording medium and method of manufacturing the same
02/19/1992EP0471314A1 Edge servo for disk drive head positioner
02/19/1992EP0471101A1 Method and apparatus for the positioning of a magnetic head on a magnetic memory surface
02/19/1992CN2096798U Adjusting table for magnetic head of plate type recorder
02/19/1992CN1058858A Rotary head cylinder and method for manufacturing same
02/19/1992CN1015577B Circuit arrangement for inverting magnetic field
02/19/1992CN1015576B Tape dubbing apparatus
02/18/1992US5089923 Static magnetic reading head having a plurality of elementary heads
02/18/1992US5089917 Digital signal recovery apparatus with minimized high frequency noise
02/18/1992US5089757 Synchronous digital detection of position error signal
02/18/1992US5089693 Reader/writer for arcuately flexed data cards
02/18/1992US5089344 Polyurethane resin binder containing a tertiary amine and 1,4-cyclohexanedimethanol as a chain extender
02/18/1992US5089334 Flux spreading thin film magnetic devices
02/18/1992US5089333 With low carbon black content in layer farthest from support, low light transmittance, thinner magnetic layer; durability
02/18/1992US5089331 Magnetic recording medium
02/18/1992US5089330 Abrasive tape in which a single compound serves to improve dispersion of abrasive particles and also as antistatic and lubricant for the tape
02/18/1992US5089317 Ferromagnetic particles with different specific water content in different layers
02/18/1992US5089196 Non-magnetic substrate of magnetic head, magnetic head and method for producing substrate
02/18/1992US5089110 Data storage disk and plug
02/17/1992CA2049197C Micro-displacement type information detection probe device and scanning tunneling microscope, atomic force microscope, information processing device by use thereof
02/13/1992DE4025558A1 Stable magnetic dispersions for prodn. of recording media - by treating solvent, additives and-or binder with ion-exchanger contg. polar components of the dispersion, before adding to the dispersion
02/13/1992DE4024996A1 Playback control for video signals - has playback tracking error determined using Fourier analysis
02/12/1992EP0470934A1 Method of producing a magnetic recording medium