Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
02/1994
02/01/1994US5283702 Power saving system for rotating disk data storage apparatus
02/01/1994US5283701 Automatic recording level control system providing for manual change of the standard level
02/01/1994US5283700 Digital signal recording/reproducing apparatus for recording and/or reproducing main information along with additional information
02/01/1994US5283521 Method and system for adaptive digital linearization of an output signal from a magnetoresistive head
02/01/1994US5283133 Magneto-optical disk
02/01/1994US5282308 Thin film planarization process for fabricating magnetic heads employing a stitched pole structure
01/1994
01/31/1994CA2091911A1 Seal for bearings in small angle oscillation applications
01/27/1994DE4304374C1 Calender assembly for paper and other web materials - applies electrostatic charge to side of web against the temp. controlled roller for close contact without intermediate air layer
01/27/1994DE4224161A1 Biaxially orientated polyester sheet
01/27/1994DE4223893A1 Rotary helical scan head for magnetic tape recording - has number of magnetic heads connected to individual amplifier circuits on radial boards mounted in head drum
01/26/1994EP0580442A2 Integrated magnetic read/write head/flexure/conductor structure
01/26/1994EP0580368A2 Studless thin film magnetic head and process for making the same
01/26/1994EP0580164A1 Magnetic recording medium and its manufacturing method
01/26/1994EP0580095A1 Production of magnetic recording medium
01/26/1994EP0580093A1 Biaxially oriented film comprising layers of polyethylennaphthalate bibenzoate (PENBB), process for preparing these films and application thereof
01/26/1994EP0580027A2 Thin film magnetic head
01/26/1994EP0426763B1 Bias field switching system for magneto-optic disk drive
01/26/1994CN2154525Y Double-time recorder
01/25/1994US5282216 High data rate decoding method for coding signal processing channels
01/25/1994US5282190 Data storage disk drive with a piezoelectric member and a resilient member between a head and a disk
01/25/1994US5282104 Magnetic reading device with read head matrix network
01/25/1994US5282103 Magnetic head suspension assembly fabricated with integral load beam and flexure
01/25/1994US5282102 For attachment to an actuator arm
01/25/1994US5282096 Magnetic recording and playback apparatus
01/25/1994US5282094 Current mirror having a base current compensation circuit with a compensation mirror and a voltage clamp
01/25/1994US5282048 Automatic selection method and apparatus for a video signal during dubbing
01/25/1994US5281870 Current controller
01/25/1994US5281482 Magnetic recording medium comprising magnetic particles and an electron beam curable polyurethane binder having segments derived from a specified unsaturated diol
01/25/1994US5281472 Primer coating of epoxy crosslinked polyurethane, antistatic agent and sulfonate terminated polyether, improved adhesion, substrate for magnetic tape, X-ray film
01/25/1994US5281300 Thin film head for a magnetic storage device
01/25/1994US5280862 Tape cassette and leader-trailer tape therefor
01/25/1994CA1326541C Digital recorder using partial response method
01/24/1994CA2101097A1 Integrated magnetic read/write head/flexure/conductor structure
01/24/1994CA2074496A1 Hard drive head array
01/23/1994CA2100923A1 Biaxially oriented films containing layers of polyethylene naphthalate bibenzoate (penbb), process for the production of these films and use thereof
01/20/1994WO1994001863A1 Recording and time-delayed playback apparatus as for magnetic tape
01/20/1994WO1994001862A1 Pantographic mount for a magnetic transducing head
01/20/1994WO1994001861A1 Servo controlled magnetic head positioner
01/19/1994EP0579399A2 Glass substrate for a magnetic disc and manufacture thereof
01/19/1994EP0579198A2 Magnetic recording control device
01/19/1994EP0579156A2 Digital video signal recording and reproducing method and apparatus thereof
01/19/1994EP0579121A2 Polyester film
01/19/1994EP0579114A1 Sputtering apparatus
01/19/1994CN2153851Y Recording-playing head with automatic demagnetisation device
01/19/1994CN1081013A Magnetic head
01/19/1994CN1081012A Laminated, high frequency, magnetic transducer and manufacturing method therefor
01/18/1994US5280402 Combined stepper motor and voice coil head positioning apparatus
01/18/1994US5280401 Magnetic recording medium, method for producing same and magnetic recording apparatus
01/18/1994US5280399 Video signal recording apparatus
01/18/1994US5280393 Circuit for monitoring the recorded state of audio signal
01/18/1994US5280340 Method and apparatus to calibrate intensity and determine fringe order for interferometric measurement of small spacings
01/18/1994US5280196 Magnetic head drive circuit
01/18/1994US5279881 Multilayer; reduced friction and surface roughness
01/18/1994US5279877 Magneto optical disc
01/18/1994US5279775 Acousto-optical intensity control of laser beam during etching of optical servo information of magnetic media
01/18/1994US5279470 Winding mandrel tensioning means
01/18/1994US5279026 Process for producing a thin-film magnetic tape head
01/13/1994DE4222376A1 Head system for helical scan recording of tape - has upper drum section mounted adjustably on cross carrier coupled to main support for lower drum section
01/12/1994EP0578587A2 Narrow track width laminated core magnetic head
01/12/1994EP0578234A2 Magnetic head and method of manufacturing the same
01/12/1994EP0578228A2 Microactuator
01/12/1994EP0578100A1 Method for production of magnetic coating material
01/12/1994EP0578078A2 Track following method in a recorder
01/12/1994EP0578074A2 Magnetic reading and/or recording apparatus for use in photographic equipment
01/12/1994EP0577766A1 Apparatus and method for high throughput sputtering
01/12/1994CN2153120Y Dry cleaning piece for computer driver
01/12/1994CN1080760A Thin film contact recording head
01/12/1994CN1023518C System and method for data recovery in multiple head assembly storage device
01/11/1994US5278818 Magneto-optical recording circuitry for reversing a magnetic field
01/11/1994US5278716 Magnetic head with suppressed generation of pseudogap
01/11/1994US5278715 Scanning device for magnetic tape with special disposition of rotary transformers for recording and playback magnetic heads
01/11/1994US5278714 Adjustable structure for attaching a rotary head to a rotary drum of a video cassette recorder
01/11/1994US5278713 Cooling device including ribs, in combination with a magnetic head
01/11/1994US5278712 Removable disk drive having two heads formed with a gimbal structure
01/11/1994US5278711 Disk drive assembly
01/11/1994US5278709 Magnetic storage disk
01/11/1994US5278706 Digital video signal recording/reproducing apparatus
01/11/1994US5278700 Differentiating amplifier responsive to track locations and variations of element values from desired values
01/11/1994US5278275 Polyurethane resin composition
01/11/1994US5277984 Magnetic recording medium comprising ferromagnetic powder, a silane compound, and a binder comprising an epoxy group and specified functional group
01/11/1994US5277980 Mass of fine particles of inorganic material and a film of the fine inorganic particles
01/11/1994US5277977 Ferromagnetic stabilized ultrafine spherical hexagonal crystalline Fe2
01/11/1994US5277960 Anodized aluminum layer; texture, protrusion
01/11/1994US5276959 Method of manufacturing a magnetic tape head
01/11/1994CA1326073C Wipers for pair of stabilized magnetic disks
01/11/1994CA1326072C Voltage amplifier for constant voltage biasing and amplifying signals from a mr sensor
01/06/1994WO1994000839A1 Method for very high track density magnetic recording
01/06/1994WO1994000774A1 Magnetic field sensor
01/06/1994WO1994000274A1 A method of and apparatus for removing debris from the floptical medium
01/05/1994EP0577469A1 Magnetoresistive transducer
01/05/1994EP0577181A1 Circuitry for recording a data signal
01/05/1994EP0577078A2 Magnetic tape apparatus with a reading head for reading main information, and auxiliary information from two different regions
01/05/1994EP0576954A2 Magnetic recording medium and method for magnetic recording
01/05/1994EP0576904A1 Thin film recording head
01/05/1994EP0576839A2 A rotary actuator disk drive
01/05/1994EP0576803A1 Air bearing magnetic head slider
01/05/1994EP0576723A1 Magnetic head and method of manufacturing a magnetic head
01/05/1994EP0576684A1 Minute acicular particle containing metallic iron, iron carbide and carbon, production thereof, and magnetic coating composition and magnetic recording medium containing the same
01/05/1994EP0576680A1 Magnetic head assembly, its manufacture, and magnetic disc device
01/05/1994EP0447406B1 Camera apparatus for magnetically recording on film