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)
12/2002
12/10/2002US6492468 Block copolymers which are predominantly based on vinylcyclohexane and to a process for producing them. the block copolymers can be processed to form mouldings by extrusion or injection moulding. the mouldings have high
12/10/2002US6492035 Magneto-optical recording medium with intermediate layer having a controlled saturation magnetization
12/10/2002US6491842 Anticorrosive magnetic nanocolloids protected by precious metals
12/10/2002CA2114378C Disc recording and/or reproducing apparatus
12/05/2002WO2002097806A1 Polycarbonates for optical use, and their applications
12/05/2002US20020182546 Optical disk master, optical disk substrate stamper, process for production thereof, and magneto-optical recording medium
12/05/2002US20020181364 Write and/or erase method and storage apparatus
12/05/2002US20020181354 Reproducing method and storage apparatus
12/05/2002US20020181346 Seek control method and storage apparatus
12/05/2002US20020179926 Fabrication of integrated semiconductor devices for interacting with magnetic storage media
12/04/2002EP1262959A2 Seek control method and storage apparatus
12/04/2002EP1262958A2 Reproducing method and storage apparatus
12/04/2002CN1383548A Record head for thermally assisted magnetic recording
12/03/2002US6490242 Disk cartridge with dual housing structure
12/03/2002US6488908 Spinel ferrite thin film and method of manufacturing the same
11/2002
11/28/2002WO2002095748A2 Record carrier with hidden channel
11/28/2002WO2002095083A1 Composite glassy carbon disk substrate
11/28/2002US20020177011 Magneto-optical recording medium
11/28/2002US20020177010 Magneto-optical recording medium
11/28/2002US20020176349 Data storage medium utilizing directed light beam and near-field optical sources
11/28/2002US20020176348 Optical pickup device
11/28/2002US20020176344 Data reproduction apparatus
11/28/2002US20020176335 Crosstalk removal apparatus and information reproduction apparatus
11/27/2002EP1260976A2 Magneto-optical recording medium
11/27/2002EP1260975A2 Data storage medium
11/27/2002CN1382174A Method of producing polycarbonates
11/27/2002CN1095157C Mixed recording system device
11/27/2002CN1095156C Optical disk apparatus
11/26/2002US6487164 Optical recording medium capable of assuring sufficient levels of signals required for reading/writing data, and stamper for manufacture of the same
11/26/2002US6487148 Edge detection for servo signals in optical storage system
11/26/2002US6487147 Optical information recording medium and an optical information recording/reproduction device
11/26/2002US6487144 Disk recording medium including data pre-formatted-data-recorded header having first and second identical address numbers radially displaced from each other on opposite sides of groove or land track center line, and disk drive unit for use with the recording medium
11/26/2002US6487026 Optical lens system comprising two more than half-spherical lenses
11/21/2002WO2002093568A1 Optical head, disc recording/reproducing apparatus, and objective lens drive method
11/21/2002US20020174287 Portable data storage device capable of being directly connected via USB plug to a computer
11/21/2002US20020172144 Objective lens system and optical disk apparatus using the same
11/21/2002US20020172138 Disk reading/writing device and readable/writable disk
11/21/2002US20020172136 Optical disk apparatus with electrostatic lens actuator
11/21/2002US20020172134 Method and system for suppressing spurious reflections
11/21/2002US20020172102 Magnetic head
11/21/2002DE10124185A1 Electromagnetic actuator with coil arrangement for improving the efficiency of a magnetic circuit so that the response time of a read-write head for an optical recording medium, such as a CD, can be lowered
11/21/2002DE10013540C2 Speichervorrichtung und Servowiederherstellungsverfahren für diese Storage device and power recovery method for this
11/20/2002EP1258001A1 Cover for compact discs
11/20/2002EP1050056B1 Magnetic engraving method, in particular for magnetic or magneto-optical recording
11/20/2002CN1381045A Optical lens system comprising two more than half-spherical lenses
11/20/2002CN1381044A Optical scanning device
11/20/2002CN1381042A Method of thermally-assisted data recording and recording apparatus
11/20/2002CN1380650A Medium capable of recording two kinds of data, method and equipment for reproducing said medium, and its recording equipment
11/20/2002CN1380649A Medium capable of recording two kinds of data, method and equipment for reproducing said medium, and its recording equipment
11/20/2002CN1094632C Method and equipment for recording data
11/19/2002US6483800 Optical reproduction apparatus for reproducing information from an optical recording medium having wobbled pits
11/19/2002US6483796 Recording medium, information reproducing apparatus, information recording apparatus, and information recording and reproducing apparatus
11/19/2002US6483785 Magneto-optical recording method using the relation of beam diameter and an aperture of converging lens
11/19/2002US6483784 Magneto-optical recording medium having a heat-sink layer
11/19/2002US6483783 Magneto-optical disk apparatus capable of accurately enlarging and reproducing a magnetic domain and method of reproducing the same
11/19/2002US6483653 Magnetic recording medium and magnetic reproducing method
11/19/2002US6483627 Integrated micro-optical systems
11/19/2002CA2093579C Sliding-type magnetic head for magnetooptical recording
11/14/2002US20020168588 Multilayer; translucence film, recording layer on transparent substrate
11/14/2002US20020168549 Multilayer; variations of temperature
11/14/2002US20020167889 Recovering recorded information from an optical disk
11/14/2002US20020167885 Optical apparatus, tracking apparatus and optical disk apparatus
11/14/2002US20020167871 Optical recording medium and production method therefor
11/14/2002US20020167870 Optically-assisted magnetic recording head and optically-assisted magnetic recording apparatus
11/14/2002US20020166957 Near-field light-generating element, near-field optical recording device, and near-field optical microscope
11/13/2002EP0689200B1 Optical recording medium, reproduction apparatus of optical disk, reproduction method of optical disk, production method of original disk of optical disk, and illegal program operation stop method
11/13/2002CN1379402A Optical storage equipment
11/12/2002US6480459 Suspension design including shaped gimbal arms having a reduced mass portion along a length thereof
11/12/2002US6479111 Process for production of ultrathin protective overcoats
11/12/2002CA2097576C Method for detecting signal recorded on optical recording medium
11/07/2002WO2002089136A1 Method of recording on recording medium and recording device, and method of reproducing from recording mediumand reproducing device
11/07/2002WO2002089129A1 Optical recording medium, production method of optical recording medium, optical recording method and optical reproducing method for optical recording medium
11/07/2002US20020164106 Optical disk device and optical pickup device
11/07/2002US20020163862 Magnetic head including stepped core and magneto-optical recording device using the same
11/07/2002US20020163861 Magnetic lens, magnetic reproducing element, reproducing apparatus and reproducing method
11/07/2002DE4345525C2 Optische Disk und Vorrichtung zu deren Wiedergabe Optical disc apparatus and to play them
11/07/2002CA2414221A1 Method of recording on recording medium and recording device, and method of reproducing from recording medium and reproducing device
11/06/2002CN1378687A Recording head, method of manufacturing recording head, information recording device
11/05/2002US6477120 Magneto-optical recording medium
11/05/2002US6477119 Magnetic head drive circuit including paired auxiliary coils, paired switching elements, and switch element control circuit, and magneto-optical recording device using the same
11/05/2002US6477118 Method and apparatus for recording and reproducing information by applying field in a direction other than the direction of magnetization or the direction to a surface of an information recording medium
10/2002
10/31/2002WO2002086894A1 Trick play for mp3
10/31/2002WO2002086891A1 Recording and/or reproducing device
10/31/2002WO2002086887A1 Device and method for recording information
10/31/2002WO2002086885A1 Record carrier and apparatus for scanning the record carrier
10/31/2002WO2002086882A1 Magneto-optic record medium
10/31/2002WO2002086731A1 Mapping of consecutive regions for information blocks
10/31/2002WO2002085605A1 Methods for embossing and embossed articles formed thereby
10/31/2002WO2002085537A2 Spin coating process
10/31/2002US20020159591 The copy protection of digital audio compact discs
10/31/2002US20020159366 Optical recording method and optical recording medium
10/31/2002US20020159362 An optical disk having an attribute wihich designates whether a recording area permits rewriting or not
10/31/2002US20020159349 Optical information reproducing method and apparatus for performing reproduction compensation
10/31/2002US20020159339 Magneto-optical recording medium
10/31/2002US20020158353 Optical recording head having a solid immersion lens
10/31/2002CA2415497A1 Device and method for recording information
10/29/2002US6473553 Apparatus for holding and engaging micro-machined objects and method for making same
10/29/2002US6473389 Lens actuator
10/29/2002US6473388 Ultra-high density information storage device based on modulated cathodoconductivity
10/29/2002US6473385 Optical head, and optical recording and/or reproducing apparatus
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