Patents
Patents for G11B 5 - Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor (87,826)
05/1993
05/12/1993CN1072036A Arrangement for obtaining recorded tape-like magnetic record carriers, record carrier obtained by means of arrangement and reproducing device for producing record carrier
05/11/1993US5210714 Distance-controlled tunneling transducer and direct access storage unit employing the transducer
05/11/1993US5210673 Thin-film hard disk magnetic medium
05/11/1993US5210672 Magnetically indelible media type identification system
05/11/1993US5210669 Methods of improved servo head passive noise cancellation by placement and orientation of multiple servo transducers
05/11/1993US5210668 Metal layer gap
05/11/1993US5210667 Magnetic recording heads employing multiple lapping guides
05/11/1993US5210666 Self-loading air bearing slider with a relieved leading edge
05/11/1993US5210663 Tracking control device and magnetic recording and reproducing apparatus using the device
05/11/1993US5210662 Tracking control apparatus for magnetic disk
05/11/1993US5210659 Video signal recording and editing apparatus
05/11/1993US5209970 Magnetic recording media
05/11/1993US5209954 Method for applying a coating liquid to a web
05/11/1993US5209837 Mirror surface finishing anodized aluminum film on substrate, chemical dissolution to widen pores, coating
05/11/1993US5209835 Method for producing a specified zirconium-silicon amorphous oxide film composition by sputtering
05/11/1993US5208971 Process of manufacturing a magnetic head
05/11/1993US5208965 Method for producing magnetic head having track regulation grooves formed at tape sliding surface
05/11/1993CA1317672C Marker for detecting amount of working and process for producing thin film magnetic head
05/08/1993CA2082326A1 Laminated polyester film for magnetic recording medium
05/05/1993EP0540385A1 Recorded information read-out method and system
05/05/1993EP0540352A2 Data recording/reproducing device
05/05/1993EP0540283A2 Gimbaled micro-head/Flexure/conductor assembly and system
05/05/1993EP0540282A2 Size-independent, rigid-disk, magnetic digital-information storage system with localized read/write enhancements
05/05/1993EP0540275A2 A circuit apparatus for driving a magnetic head
05/05/1993EP0540264A2 Magneto-optical recording apparatus
05/05/1993EP0540227A1 Non-conductive aluminum oxide-titanium carbide (Al2O3-TiC), method of making same, and slider element incorporating same
05/05/1993EP0540114A1 Method and apparatus for reducing track switch latency in a disk drive
05/05/1993EP0540058A2 Perpendicular magnetic recording medium
05/05/1993EP0539922A2 Digital video tape recorder
05/05/1993EP0539724A1 Extrusion coating apparatus
05/05/1993EP0539694A1 Alumina material useful with thin film heads
05/05/1993CN1020514C Linear actuator for a disk file
05/05/1993CN1020513C Arrangement of magnetic head
05/04/1993US5208716 Magnetoresistant magnetic head for longitudinal recording and process for producing such a head
05/04/1993US5208715 Shield geometry for stabilizing magnetic domain structure in a magnetoresistive head
05/04/1993US5208714 Magnetic hybrid interleaved head with closure supporting islands
05/04/1993US5208713 Bistable magnetic/electromagnetic latch for disk file actuator
05/04/1993US5208712 Data head load beam for height compacted, low power fixed head and disk assembly
05/04/1993US5208711 Data recording/reproducing apparatus having recording head position detection and control
05/04/1993US5208710 Method for high speed positional control of a transducer for rotating disk data storage apparatus
05/04/1993US5208706 Magnetic reproduction apparatus and method
05/04/1993US5208677 Video signal reproducing apparatus
05/04/1993US5208556 Phase lock loop for sector servo system
05/04/1993US5208523 Stepper motor with vernier control mode
05/04/1993US5208091 Polar hydrophilic resin layer; backing has protrusions; durability
05/04/1993US5208066 Process of forming a patterned polyimide film and articles including such a film
05/04/1993US5207759 Texturing slurry and method
05/04/1993US5207515 Ball bearing with spherical segment inner ring and divided outer ring
05/04/1993CA1317371C Compensation circuit for nullifying differential offset voltage and regulating common mode voltage of differential signals
05/04/1993CA1317370C Method and apparatus using multiple codes to increase storage capacity
05/04/1993CA1317097C End-of-polishing detecting process for a thin film magnetic head
05/02/1993CA2071412A1 Method and apparatus for reducing track switch latency in a disk drive
05/01/1993CA2081951A1 Perpendicular magnetic recording medium
04/1993
04/29/1993WO1993008564A1 Magnetic recording medium
04/29/1993WO1993008563A1 Sleeveless rotatable beryllium/aluminum actuator arm for a magnetic disk drive
04/29/1993WO1993008562A2 Magneto-resistive head
04/29/1993WO1993008445A1 Method and apparatus to calibrate intensity and determine fringe order for interferometric measurement of small spacings
04/29/1993DE4235497A1 Magnetic storage media, e.g. for hard-discs - has low noise magnetic layer on non-magnetic layers, and protective carbon layer on surface
04/28/1993EP0539302A1 Oriented semi-crystalline polyester films, method for their manufacture and their use as support for magnetic coatings
04/28/1993EP0539213A1 Magnetoresistance effect element and magnetoresistance effect sensor
04/28/1993EP0538919A1 Magnetic tape recording apparatus
04/28/1993EP0538887A1 Magnetic recording medium and method for examining magnetic recording medium
04/28/1993EP0538856A2 Composite thin film magnetic head
04/28/1993EP0538855A1 Magnetic recording medium
04/28/1993EP0538852A1 Magnetic head
04/28/1993EP0538835A2 Recording and reproducing apparatus
04/28/1993EP0538823A2 Perpendicular magnetic recording and perpendicular magnetic reproducing apparatus
04/28/1993EP0538790A2 Tooling for assembly of compact disk drive
04/28/1993EP0538260A1 Low height disk drive
04/28/1993CN1071520A Magnetic recording medium having radiation curable binder with alphamethylstyrene unsaturation
04/27/1993US5206843 Apparatus for erasing information recorded on an information recording medium by applying light and a magnetic field over a plurality of recording tracks
04/27/1993US5206774 Process for making a magneto-resistive magnetic transducer having increased sensitivity and an improved flux path and the product made thereby
04/27/1993US5206770 Apparatus with arrangement for keeping rotating head in optimal contact with magnetic tape
04/27/1993US5206738 Magnetic recording apparatus having a means for determining recording current
04/27/1993US5206590 Magnetoresistive sensor based on the spin valve effect
04/27/1993US5206570 Actuator servo compensation method
04/27/1993US5206555 Adjustable brake for magnetic actuator
04/27/1993US5206056 Method of application and device for application
04/27/1993US5205950 Reducing, carburizing coated iron compound
04/27/1993US5205178 Method for non-intrusive continuous and automatic taking of samples, storing and supplying of samples and data for a possible evaluation
04/27/1993CA1316771C Magnetic recording medium
04/27/1993CA1316770C Magnetic recording medium
04/26/1993CA2081095A1 Magnetic recording medium and method for examining magnetic recording medium
04/22/1993DE4234622A1 Suspended particle drier for magnetic recording material production - has material passed over head with built in magnets and air jet drying nozzles
04/21/1993EP0537940A1 Actuator device with movable and lockable actuator
04/21/1993EP0537916A2 A circuit for controlling an actuator arm in a disk drive system
04/21/1993EP0537707A2 Assembly of compact disk drive
04/20/1993US5204932 Servo circuit for magnetic disk apparatus
04/20/1993US5204801 Degaussing technique
04/20/1993US5204795 Magnetic recording and reproduction system having opposed magnetic heads
04/20/1993US5204790 Digital signal recording circuit for digital video cassette tape recorder
04/20/1993US5204789 Low noise voltage-biasing amplifier for magnetoresistive element
04/20/1993US5204788 Digital magnetic recording and reproducing circuit for suppressing generation of asymmetry
04/20/1993US5204708 Method and apparatus for magnetically communicating via a photographic filmstrip with enhanced reliability
04/20/1993US5204290 For bonding, sealing magnetic heads; containing oxides of silicon, boron, lead, cadmium, alkali metal, zinc and optional zirconium
04/20/1993US5204192 High temperature durability, wear resistance
04/20/1993US5203798 Cleaning apparatus for substrate
04/20/1993US5203119 Automated system for lapping air bearing surface of magnetic heads
04/20/1993CA1316596C Bottleneck magnetoresistive element
04/20/1993CA1316593C Video recorder with noise-free high-speed playback