Patents
Patents for G11B 11 - Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group; Record carriers therefor (14,351)
05/2003
05/28/2003EP1064650B1 Integrated micro-optical systems
05/28/2003CN1110000C 光学装置 Optical device
05/27/2003US6570940 Information reproducing apparatus and reproducing method
05/27/2003US6570840 Figure of merit in optical recording structures
05/27/2003US6570839 Optical data system and optical disk relating thereto
05/27/2003US6570828 Optical pickup device having a movable-side member driven with a predetermined inclination
05/27/2003US6570827 Optical element for correction of chromatic aberration, optical pick-up device having optical element for correction of chromatic aberration, optical reproducing device having optical pick-up device and optical recording and reproducing device
05/27/2003US6570826 Optical recording medium allowing high-density recording and reproduction of information
05/27/2003US6570725 Drive circuit for magnetic head and winding configuration of magnetic head suitable for the drive circuit
05/27/2003US6568594 Optical scanning device
05/22/2003WO2003042994A1 Improved figure of merit in optical recording structures
05/22/2003WO2003042986A2 Optical record carrier recording method and recording apparatus
05/22/2003WO2003009281A3 Two-sided replication of data storage media
05/22/2003US20030096141 Writing and reading stored medium; amorphous, nonabrasive, wear resistance; carbon-based, diamond-like protective overcoating layer over transparent dielectric layer and a fluoropolymer lubricant topcoat
05/22/2003US20030096078 Glass substrate for data recording medium and manufacturing method thereof
05/22/2003US20030095493 Planar integrated micro-optical pickup head
05/22/2003US20030095477 Optical information recording device, opticall information reproducing device, optical information recording/reproducing device, and optical information recording medium
05/22/2003US20030095343 Integrated micro-optical systems
05/21/2003EP1313097A2 Dual shield vertical magnetooptical read head
05/21/2003EP1313094A1 Optical pickup device and recording and/or reproducing device
05/21/2003EP1312081A1 Scanning device comprising a magnetically guided linear motor
05/21/2003CN1419233A Compact disc and driver thereof
05/21/2003CN1109329C Method and apparatus for magngetic recording
05/20/2003US6567353 Optical head with light receiving element surfaces divided into at least three light receiving areas
05/20/2003US6567348 Method for recording mark length shorter than channel bit length on magneto-optical medium
05/20/2003US6567347 Optical head having a plurality of coil elements connected in parallel to each other
05/20/2003CA2110753C Magneto-optical recording/reproducing apparatus with optical pickup device having a multi-layer dielectric film beam splitter
05/15/2003WO2003040993A2 Recording medium and methods of and device for recording information on the recording medium
05/15/2003US20030090826 Multiple orientation magnetic information storage
05/15/2003US20030090005 Chemical strengthening treatment unit for applying chemical strengthening treatment to glass substrates used in information recording media applications
05/15/2003CA2465765A1 Recording medium and methods of and device for recording information on the recording medium
05/14/2003EP1310954A2 Method and system for storing and retrieving data
05/14/2003EP1310949A1 Highly orientated magnetic thin films, recording media, transducers, devices made therefrom and methods of making
05/14/2003EP1310948A1 Highly oriented magnetic thin films, recording media, transducers, devices made therefrom and methods of making
05/14/2003EP1309970A2 Information recording medium and recording/reproducing method thereof
05/14/2003EP1309966A1 Method of manufacturing a magnetic head having a planar coil
05/14/2003EP1068613B1 Low-birefringence optical fiber for use in an optical data storage system
05/14/2003EP1066629B1 Low noise optical storage system based on an optical polarimetric delay line
05/14/2003EP0920696B1 Phase-controlled evanescent field systems and methods
05/14/2003CN1418233A Polyester carbonate and data carrier therefrom
05/14/2003CN1417784A Memory medium based on current distribution
05/14/2003CN1417783A Data memory medium and method utilizing adjacent layer to memory layer
05/14/2003CN1417782A Additional energy source of memory equipment for atom splitting memory
05/13/2003US6563785 Method of manufacturing rounded edge recording head
05/13/2003US6563781 Optical information storage device and optical head
05/13/2003US6563768 Magneto-optical memory device
05/13/2003US6563767 Connecting unit for connecting the head unit to a head slider in a head actuator for recording and/or reproducing apparatus
05/13/2003US6563527 Information recording method and information reproducing method, recording medium for use in the methods, and information recording apparatus and information reproducing apparatus
05/08/2003WO2003038822A1 Data recording method, recorder, and data reproducing method and device
05/08/2003US20030086351 Information reproducing method for an optical medium having grooves and lands
05/08/2003US20030086340 Dual shield vertical magneto-optical read head
05/07/2003EP1308947A2 Optical head and method of making the same
05/07/2003EP1308946A2 Data storage device
05/07/2003EP1308945A1 Data storage unit
05/07/2003EP1308944A2 Method of producing information recording medium, production apparatus and information recording medium
05/07/2003EP1308936A1 Highly Oriented Magnetic Thin Films, Recording Media, Transducers, Devices Made Therefrom and Methods of Making
05/07/2003CN1416569A Optical information recording device optical information reproducing device, optical information recording/reproducing device, and optical information recording medium
05/07/2003CN1107950C Disk recording/or reproducing device and motor-driven control circuit
05/06/2003US6560189 Optical information storage apparatus
05/06/2003US6560174 Information recording apparatus and information recording method
05/06/2003US6560169 Magneto-optical recording and reproduction apparatus exhibiting suppressed vibration
05/06/2003US6560168 Information recording/reproducing device
05/01/2003WO2003036646A1 Disk cartridge
05/01/2003WO2003036633A1 Method of forming film on optical disk
05/01/2003WO2003036627A1 A quality-testing apparatus and method
05/01/2003US20030081533 Current divider-based storage medium
05/01/2003US20030081532 Supplementary energy sources for atomic resolution storage memory devices
05/01/2003US20030081529 Optical head and method of making the same
05/01/2003US20030081527 Data storage media and methods utilizing a layer adjacent the storage layer
05/01/2003US20030081510 Magneto-optical recording medium and recording and reproducing method and optical head designed for the magneto-optical recording medium
05/01/2003US20030081509 Magneto-optical recording medium and reproducing method thereof
04/2003
04/30/2003CN1414544A Optical data processing unit
04/30/2003CN1107314C 磁头与磁头装置 Head and the head unit
04/29/2003US6557126 Method and apparatus for calibrating write power
04/29/2003US6556532 Optical pickup device
04/29/2003US6556517 Magneto-optical head device having integrated auxiliary lens and magnetic reproducing head and recording and reproducing device using magneto-optical head device
04/29/2003US6556516 Reproducing method and reproducing apparatus for magneto-optical recording medium using different radiation patterns
04/29/2003US6555195 Shaping tool for information carrier disc blanks
04/29/2003US6554974 Forming a recording film on the surface of a substrate, including slopes, which are positioning on both sides of each information track, sputter etching the surface of substrate by accelerated ions impinging against track surface
04/24/2003WO2003034417A1 Optical lens, condensing lens, optical pickup, and optical recording/reproducing device
04/24/2003WO2003034416A2 Slider for an optical data writing/reading apparatus, and apparatus comprising such a slider
04/24/2003US20030076750 Head arrangement with improved field characteristic for domain expansion technology
04/24/2003US20030075682 Method for forming composite arrays of single-wall carbon nanotubes and compositions thereof
04/24/2003US20030075669 Optical data-processing apparatus
04/23/2003EP1304696A2 Data management
04/23/2003EP1304692A1 Optical disk recording medium, optical disk device, and master production method
04/23/2003EP1304688A2 Optical data storage system
04/23/2003EP1304686A2 Light source driving unit and optical storage apparatus
04/23/2003CN1413348A Cover for compact discs
04/23/2003CN1412754A Information recording carrier
04/23/2003CN1106640C Optical disk and optical drive device
04/23/2003CN1106638C Magneto-optical recording materials system
04/22/2003US6552994 Optical reproduction apparatus
04/22/2003US6552980 Method of setting power for a reproducing beam to be applied to a magneto-optical disc, and method of reproducing data from a magneto-optical disc
04/22/2003US6552968 Optical recording medium, method of producing same, and optical recording and reproduction device
04/22/2003US6552967 Optical output adjusting apparatus based on shortest recording marks
04/22/2003US6552966 Recording head for optical recording system
04/22/2003US6552858 Objective lens system and optical disk apparatus using the same
04/22/2003US6552356 Image recording medium
04/17/2003WO2003032307A2 Method of manufacturing a digital magneto-optical signal write/read head and write/read head manufactured according to the method
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