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)
11/1989
11/15/1989EP0341790A2 Method and apparatus for reproducing magnetic tape using rotary drum heads
11/15/1989EP0341362A2 Magnetic disc apparatus
11/15/1989EP0341320A1 Method and device for magnetic recording
11/15/1989EP0226574B1 Magnetoresistive sensor for producing electric signals
11/15/1989CN2047828U Language studying device used together with casette tape recorder
11/15/1989CN2047827U Magnet tape capable of automatically cleaning the header
11/14/1989US4881144 Thin film magnetic head
11/14/1989US4881143 Compensated magneto-resistive read head
11/14/1989US4881142 Magnetic disc unit employing temperature compensation
11/14/1989US4881141 Driving apparatus for a magnetic head
11/14/1989US4881136 Method and apparatus for detecting minute defects on magnetic disk by monitoring both amplitude decrease and phase shift of a reproduced signal
11/14/1989US4880857 Carbon black-graft polymer, method for production thereof, and use thereof
11/14/1989US4880693 Nonmagnetic support; durability and improved dropout; amine modified vinyl acetate-vinyl chloride copolymer support
11/14/1989US4880692 Magnetic recording medium
11/14/1989US4880687 Magnetic recording medium
11/14/1989US4880666 Method of manufacturing magnetic recording medium
11/14/1989US4880518 Disk carrier
11/14/1989US4880514 Magnetic recording media
11/08/1989EP0341120A1 Thermo-magnetic recording head
11/08/1989EP0341002A2 Thin film structure having magnetic and colour shifting properties
11/08/1989EP0340988A2 A memory card and an apparatus for processing the same
11/08/1989EP0340882A2 Thin film magnetic data transducer
11/08/1989EP0340781A2 Magnetic head of floating type and process for producing same
11/08/1989EP0340689A2 Iron carbide fine particles and process for preparing the same
11/07/1989US4879632 Cooling system for an electronic circuit device
11/07/1989US4879621 Disk restraint
11/07/1989US4879620 Magnetic head for flexible disk drive
11/07/1989US4879619 Nichrome and chromium oxide
11/07/1989US4879618 Wind breaking assembly for a magnetic head
11/07/1989US4879617 Actuator assembly for hard disk drives
11/07/1989US4879612 Head positioning servo-mechanism with error reduction capabilities
11/07/1989US4879610 Protective circuit for a magnetoresistive element
11/07/1989US4879609 Rotary head type recording apparatus having an erasing function based on recording mode
11/07/1989US4878290 Method for making thin film magnetic head
11/07/1989CA1262701A1 Electron-beam adhesion-promoting treatment of polyester film base for silicone release liners
11/02/1989WO1989010574A1 Resonance assisted domain and domain-wall spectroscopy
11/02/1989EP0340085A2 Magnetic head matrix device, especially one made of thin films
11/02/1989EP0339874A2 Thin film head read recovery
11/02/1989EP0339851A2 A magnetic record disk with embedded servo information
11/02/1989EP0339813A2 A discrete track thin film magnetic record disk and a method of making it
11/02/1989EP0339724A1 Device for recording digital information signal
11/02/1989EP0339619A2 Magnetic recording medium
11/02/1989EP0339072A1 Magnetic transducer
11/02/1989EP0339070A1 Magnetic read/write head with abrasion-resistant layer and process for making it
11/02/1989EP0339069A1 Process for detecting the end of polishing of a thin-layer magnetic head
11/02/1989DE3907877A1 Magneto-optical recording material
11/02/1989DE3813400A1 Magnetic head for a recorder
11/01/1989CN2047057U Automatic degaussing device for magnetic head of recorder
11/01/1989CN2047056U Miniature recorder
11/01/1989CN1036853A Linear read write device and magnetic disk apparatus
10/1989
10/31/1989US4878141 Solid-phase welded magnetic head
10/31/1989US4878140 Magneto-resistive sensor with opposing currents for reading perpendicularly recorded media
10/31/1989US4878139 Loading apparatus for a magnetic disk cartridge
10/31/1989US4878136 Track crossing detector
10/31/1989US4878135 Method and system for a magnetic disk drive employing a quadratic compensation function for determining an offset correction value
10/31/1989US4878028 Technique for generating precompensation delay for writing data to disks
10/31/1989US4876790 Electrodepositing a coating of hard material as titanium nitride on the surface of sheets
10/31/1989CA1262535A1 Electron-beam adhesion-promoting treatment of polyester film base for magnetic recording media
10/26/1989DE3912378A1 Magneto-optical recording material
10/26/1989DE3911039A1 Magnetic powder for magnetic recording media, and process for the production of such a powder
10/25/1989EP0338864A2 Magneto-optical playback heads
10/25/1989EP0338830A2 Improved electron-beam curable polyurethane compositions, and method
10/25/1989EP0338811A2 Yoke type thin-film magnetic head
10/25/1989EP0338698A2 A transducer head suspension assembly
10/25/1989EP0338652A2 Microfloppy disc drive head cleaner
10/25/1989EP0338629A1 Magnetic-head unit
10/25/1989EP0338529A2 Fluorine-containing polyether and lubricant comprising the same
10/25/1989EP0338526A2 magnetic recording medium
10/25/1989EP0338245A2 Recorder with analog recording of a digital audio signal
10/25/1989EP0338063A1 Magnetic recording/reproducing head and process for making it.
10/24/1989US4876623 Magnetic disc device with gimbal spring having variable elastic characteristics
10/24/1989US4876618 Method for detecting zero track
10/24/1989US4876614 Track-readjusted magnetic-tape recorder with transverse tracking
10/24/1989US4876159 Evaporating rare earth metal and transition metal and sequenti ally depositing on substrate at maximum repeat distance of 21a to form non-homogenous, non-layered mixed film
10/24/1989US4876149 Magnetic recording media and a method using a stable fluid reactive dispersion in preparing magnetic recording media
10/24/1989US4876144 Single crystal thin film
10/24/1989US4876137 Polyethylene naphthalate film for high-density magnetic recording media of floppy disk
10/24/1989US4876117 Oxidation of group 4b, 5b, 6b, aluminum, indium, or tin metal compound precursor solution to harden
10/24/1989US4876113 Method for producing magnetic recording media
10/24/1989US4876022 Cobalt ferrite
10/24/1989US4875987 Grooved magnetic substrates and method for producing the same
10/24/1989US4875970 Dimensional accuracy
10/24/1989US4875756 Fresnel lens apparatus for optically coupling a plurality of data channels
10/24/1989US4875276 Method of producing magnetic head device
10/19/1989WO1989009988A1 Improved mounting structure for a magnetic transducer
10/19/1989WO1989009987A1 Magnetic recording device using circumferentially offset heads with double sided media
10/19/1989WO1989009986A1 A process for fabricating thin film magnetic recording heads having precision control of the width tolerance of the upper pole tip
10/19/1989WO1989009978A1 Magnetographic printing process and device for implementing said process
10/19/1989DE3911162A1 Signal detection device for a videotape recorder (VTR) with extended dynamic range
10/19/1989DE3910859A1 Magnetic recording/reproducing process and apparatus with read-error correction function
10/19/1989DE3909313A1 Magnetic disk device and process for recording and retrieving information
10/18/1989EP0337879A1 Device for writing on and reading from a magnetic carrier, and process for its production
10/18/1989EP0337650A1 Magnetic recording and/or reproducing apparatus
10/18/1989EP0337582A2 Video tape recorder servo system having high speed control track lock capability
10/18/1989EP0337566A2 Magnetic tape cassette apparatus with a head plate and magnetic head unit for this apparatus
10/18/1989EP0337450A2 Magnetic recording medium
10/18/1989EP0337316A1 Resin laminates and a process for production thereof
10/18/1989EP0337281A1 Winding apparatus
10/18/1989EP0336980A1 Vertical magnetic recording method
10/18/1989EP0188474B1 Audio-video adapter for audio visual apparatuses
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