Patents
Patents for G11B 7 - Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation, reproducing using an optical beam at lower power; Record carriers therefor (102,715)
11/2004
11/10/2004EP1475797A2 Reading and/or test of an arrangement with an opto-electronic sensorsystem for optical storage media
11/10/2004EP1475796A2 Record/Playback apparatus and record/playback method
11/10/2004EP1475795A1 Sputtering target containing zinc sulfide as major component, optical recording medium on which phase change optical disk protective film containing zinc sulfide as major component is formed by using the target, and method for manufacturing the sputtering target
11/10/2004EP1475794A2 Optical information recording medium
11/10/2004EP1475793A1 Write-once-read-many optical recording medium and process for recording and reproducing of the optical medium
11/10/2004EP1475792A2 Integrated optical pickup and method of manufacturing the same and optical information storage system including the optical pickup
11/10/2004EP1475791A2 Optical pickup lens driving apparatus
11/10/2004EP1475790A1 Track jumping for optical recording media
11/10/2004EP1475789A1 Track jumping for optical recording media
11/10/2004EP1475788A1 Mastering device, disc manufacturing method, disc-shaped recording medium, disc reproduction device, and disc reproduction method
11/10/2004EP1475787A1 Method for reproducing information from optical recording medium, information reproducer, and optical record medium
11/10/2004EP1475786A1 Method for recording information on optical recording medium, information recorder, and optical recording medium
11/10/2004EP1475785A1 Method for recording information on optical recording medium, information recorder, and optical recording medium
11/10/2004EP1475784A1 Rewritable optical recording medium and optical recording method
11/10/2004EP1475652A1 Objective lens and scanning device using such an objective lens
11/10/2004EP1474799A1 Rewritable optical storage medium and use of such medium
11/10/2004CN2655381Y Cd
11/10/2004CN1545703A Multi-layered optical information recording medium manufacturing method
11/10/2004CN1545702A Optical data carrier containing a phthalocyanine colouring agent as a light absorbing compound in the information layer
11/10/2004CN1545701A Optical recording/reproducing medium-use substrate, production method for optical recording/reproducing medium producing stamper and optical recording/reprodcing medium producing stamper
11/10/2004CN1545700A Optical data carrier that contains a cationic aminoheterocyclic dye as the light-absorbing compound in the information layer
11/10/2004CN1545699A Optical information recording medium
11/10/2004CN1545698A Optical recording medium, manufacturing method thereof, optical recording method, optical reproduction method, optical recording device, optical reproduction device and optical recording/reproduction
11/10/2004CN1545095A Optical disk recording/controlling method, drive device and recording system
11/10/2004CN1545093A Optical recording carrier and device for scanning thereof
11/10/2004CN1545092A Sampling method and device for CD data
11/10/2004CN1545088A Optical disk and method of manufacturing an optical disk
11/10/2004CN1545087A Multi-wavelength erasable and rewritable optical storage medium AgTCNQ and preparation method thereof
11/10/2004CN1175555C Stepping motor control device and optical head drive device
11/10/2004CN1175416C Reproducing method of digital multipurpose disc voice frequency disc
11/10/2004CN1175415C Digital multipurpose disc voice frequency disc of storage voice frequency data and reproducing device
11/10/2004CN1175412C Method for controlling rotating frequency of optical disk and optical disk recording equipment
11/10/2004CN1175409C Optical information medium and its evaluation method
11/10/2004CN1175408C Optical information recording medium and producing method thereof
11/10/2004CN1175407C Optical disk drive
11/10/2004CN1175406C Optical head and CD device
11/10/2004CN1175405C Record regeneration medium and record regenerator using record regeneration medium
11/10/2004CN1175404C Light receiving unit, light pick-up device provided with said light receiving unit
11/10/2004CN1175403C Optical pick-up device
11/10/2004CN1175402C Disc defects management method
11/10/2004CN1175399C Magnetic recorder/reproducer
11/10/2004CN1175300C Composite optical parts and optical sensor using the composite optical parts
11/10/2004CN1175290C Minitype tool and method for manufacturing same
11/10/2004CN1175047C Aromatic polycarbonate composition
11/09/2004USRE38648 Magneto-optical recording/reproducing pickup head with a diffraction grating and a wollaston prism
11/09/2004US6817026 Magnetic hub assembly for data storage disk
11/09/2004US6817024 Method of fixing a laser diode to an optical base and optical pickup using the optical base
11/09/2004US6816972 Disk recording medium, reproduction device and method for performing reproduction on disk recording medium
11/09/2004US6816451 Recovering recorded information from an optical disk
11/09/2004US6816450 Optical pickup apparatus that emits two light beams having two different wavelengths
11/09/2004US6816449 Optical pickup compatible with a digital versatile disk and a recordable compact disk using a holographic ring lens
11/09/2004US6816447 Creation of synchronization marks in multilevel optical data storage
11/09/2004US6816446 Optical recording apparatus and method for displaying residual space on optical recording medium
11/09/2004US6816445 Device and method
11/09/2004US6816443 Apparatus for discriminating optical disc and method therefor
11/09/2004US6816334 Information recording and reproducing device and tracking servo system therefor
11/09/2004US6816316 Smoothing laser beam integration using optical element motion
11/09/2004US6816291 Optical information recording and reproducing apparatus having volume holographic memory
11/09/2004US6816095 Parallel/serial conversion circuit, light output control circuit, and optical recording apparatus
11/09/2004US6815035 Adhesive composition comprising reaction product of an n-vinyl monomer selected from n-vinyl caprolactam, n-vinyl pyrrolidone, and n-vinylimidazole for bonding polycarbonate substrates; digital versatile discs
11/09/2004US6815033 Laser recording
11/09/2004US6815032 Optical disc
11/09/2004US6815031 Indolestyryl compounds and their uses in high-density recording media
11/09/2004US6815030 Substrate having successively disposed thereon a light-reflective layer, a recording layer on which information is recorded by laser light of wavelength no longer than 500 nm, a cover layer containing a uv absorbent and dye
11/09/2004US6814825 Method and device for controlling thickness during spin coating
11/09/2004US6814125 Apparatus for joining substrates together
11/09/2004CA2356217C Laminated structure, and method of manufacture thereof
11/04/2004WO2004095664A1 Programmable damping resistance for laser drivers
11/04/2004WO2004095454A1 Reproduction apparatus and method
11/04/2004WO2004095451A1 Input data recorder and input data recording method
11/04/2004WO2004095448A1 Copy-protected data carrier
11/04/2004WO2004095445A1 Stamper and method for production thereof
11/04/2004WO2004095444A1 Diffraction optical device and optical pickup device using the same
11/04/2004WO2004095443A1 Optical pickup apparatus and optical system for optical pickup apparatus
11/04/2004WO2004095442A1 Device for cleaning an optical head for reading compact-disc data
11/04/2004WO2004095441A1 An optical disc unit with a focus control loop and anti-collision circuit for an optical disc unit
11/04/2004WO2004095440A1 Apparatus and related method for monitoring tracking of an optical disc
11/04/2004WO2004095439A1 Method for managing copy protection information of recording medium
11/04/2004WO2004095438A1 Method for managing copy protection information of recording medium
11/04/2004WO2004095437A1 Optical data recording method and optical disc drive
11/04/2004WO2004095434A2 Apparatus for creating a multi-dimensional data signal
11/04/2004WO2004095433A2 Optical disk substrate, optical disk, and method of forming the same
11/04/2004WO2004095429A2 Optical disc and method of protecting same
11/04/2004WO2004095201A2 Systems and methods for caching multimedia data
11/04/2004WO2004095162A2 Method for managing copy protection information of recording medium
11/04/2004WO2004095161A2 Method for managing copy protection information of recording medium
11/04/2004WO2004095139A1 Exposing system, exposing method, process for producing stamper, and process for producing optical recording medium
11/04/2004WO2004095134A2 Photolithographic process, stamper, use of said stamper and optical data storage medium
11/04/2004WO2004094135A1 Metal alloys for the reflective or the semi-reflective layer of an optical storage medium
11/04/2004WO2004084188A3 Optical scanning device
11/04/2004US20040221321 Method of managing and playing title of medium, medium, and medium drive
11/04/2004US20040220879 System and method for controlling the use and duplication of digital content distributed on removable media
11/04/2004US20040220781 Tracking error detection apparatus
11/04/2004US20040220342 Blend of indene and/or indene derivatives-based polymer, a styrene and/or styrene derivative-based polymer and/or a copolymer of styrene and/or a styrene derivative, vinyl monomer or acrylic ester; dielectrics; fluid flow; heat resistance; discoloration inhibition; excelling in injection mold release
11/04/2004US20040219455 Ultra high-density recordable optical data recording media
11/04/2004US20040219421 cyclic polysiloxane having one or more side-chains that each include a poly(alkylene oxide) moiety and a spacer; thermostability; highly conductive electrolytes, free of problems associated with volatile and combustible solvents
11/04/2004US20040219327 Optical information-recording medium
11/04/2004US20040219326 Method of manufacturing multilayer optical recording medium and multilayer optical recording medium
11/04/2004US20040218909 Recording medium of stream data, and recording method and playback method of the same
11/04/2004US20040218647 Semiconductor laser device and optical disc unit