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)
04/2002
04/02/2002US6365256 Erasable phase change optical recording elements
04/02/2002US6364209 Data reading apparatus
04/02/2002CA2220879C Optical data storage system with multiple write-once phase-change recording layers
03/2002
03/28/2002WO2002025649A2 Method and apparatus for compensating optical disks for effects of thin films
03/28/2002WO2002025648A1 Optical data carrier containing a phthalocyanine colouring agent as a light absorbing compound in the information layer
03/28/2002WO2002025647A1 Optical disc
03/28/2002WO2002025646A1 Optical scanning device
03/28/2002WO2002025645A2 Optical disc and a reproduction method, reproduction apparatus, and recording apparatus for the same
03/28/2002WO2002025644A1 Method of recording/reproducing with blue-purple laser light and information recording medium suitable for the same
03/28/2002WO2002025643A2 Interface component a positioning system and method for designing an interface component
03/28/2002WO2002025582A2 Information carrier, apparatus, substrate, and system
03/28/2002WO2002025389A1 Digital servo control method, digital servo control device, storage device, and head position control method
03/28/2002WO2002025323A2 Etched micro lens and method and apparatus for fabricating
03/28/2002WO2002025205A1 Optical data storage device containing a co-phthalocyanin complex in the optically writable information layer
03/28/2002WO2001094658A3 Process for production of fullerene coatings
03/28/2002WO2001091122A3 Flexible air bearing design system with independent profile mapping and height field definition for mask tiers
03/28/2002US20020038443 Digital signal processing method, data recording and reproducing apparatus, and data recording medium that are resistant to burst errors
03/28/2002US20020037976 Photo curable adhesive composition
03/28/2002US20020037474 With a cyanine dye mixture as a recording layer material and photostabilizer of N,N-dimethyl-N*-(p-nitrosophenyl)-p-phenylenediamine
03/28/2002US20020037162 Recording and playback apparatus, recording and playback method and recording medium
03/28/2002US20020036979 Optical information medium
03/28/2002US20020036978 Optical information recording medium and method of producing a master and stampers therefor
03/28/2002US20020036977 Information carrier, apparatus, substrate, and system
03/28/2002US20020036975 Pickup apparatus for disk player
03/28/2002US20020036974 Optical lens, optical pickup apparatus, and optical disk apparatus using the same
03/28/2002US20020036973 Optical scanning device and optical player comprising such a scanning device
03/28/2002US20020036972 Optical pickup apparatus
03/28/2002US20020036971 Optical pickup apparatus
03/28/2002US20020036967 Recording and/or reproducing apparatus and recording and/or reproducing method capable of detecting a land pre-pit on disc securely at a high precision
03/28/2002US20020036966 Tracking control method and tracking control apparatus in which a tracking offset component is subtracted from a tracking error
03/28/2002US20020036965 Method of overwriting data of rewritable disk
03/28/2002US20020036964 Optical recording device and optical recording method, control program for the optical recording device, and computer-readable recording medium recording the control program
03/28/2002US20020036963 Information record apparatus, information record method, and information record medium
03/28/2002US20020036962 Optical storage apparatus
03/28/2002US20020036961 Method and apparatus for recording information on recording medium
03/28/2002US20020036959 CD-RW drive with multi-stage linear velocities and different recording speeds and recording powers for each stage
03/28/2002US20020036958 Optical element, optical head, optical recording/reproducing apparatus and optical recording/reproducing method
03/28/2002US20020036852 Adaptive zone frequency compensation for disc drives
03/28/2002US20020036848 VSWR skip write detector
03/28/2002US20020036839 Optical system, method of producing optical system, and optical pickup
03/28/2002US20020036753 Process of producing near-field light generating element
03/28/2002US20020036056 Method of manufacturing a disk and transfer method for the disk
03/28/2002DE10137377A1 Veränderbarer Spritzgussformeinsatz Variable injection mold insert
03/27/2002EP1191678A2 Apparatus and method for driving actuator
03/27/2002EP1191531A2 Disk-like recording medium, disk recording apparatus and method, and disk playback apparatus and method
03/27/2002EP1191529A2 Optical disk drive, and method for identifying optical disks mounted thereto
03/27/2002EP1191527A2 Master disc manufacturing apparatus
03/27/2002EP1191526A2 Optical recording media
03/27/2002EP1191525A2 Optical information recording medium and method of manufacturing optical information recording medium
03/27/2002EP1191524A1 Multilayer optical disk, and method and device for recording optical information thereon
03/27/2002EP1191523A2 An optical recording apparatus, and a method for controlling laser power therein
03/27/2002EP1191522A2 Optical pickup apparatus
03/27/2002EP1191521A2 Optical pickup apparatus
03/27/2002EP1191520A2 Information record apparatus, information record method, and information record medium
03/27/2002EP1191519A2 Method and apparatus for storing and retrieving information using optical data storage media
03/27/2002EP1191386A2 Laser light generating apparatus
03/27/2002EP1191064A1 Aromatic polycarbonate composition
03/27/2002EP1191049A1 Polycarbonate, process for producing the same, and molded article thereof
03/27/2002EP1191009A1 Process for producing fluoroalkanol
03/27/2002EP1190419A2 Rewritable data storage medium
03/27/2002EP1190418A1 USE OF Cu-PHTHALOCYANINE SULFONAMIDES AS A DYE FOR WRITE-ONCE OPTICAL DATA STORAGE MEANS
03/27/2002EP1038297B1 Disc player for playing discs with optically stored data
03/27/2002EP0976128B1 Disk and disk recording apparatus
03/27/2002EP0900239B1 Photo-addressable substrates and photo-addressable side-group polymers with highly inducible double refraction
03/27/2002EP0737965B1 Optical information recording medium and its manufacturing method
03/27/2002EP0712120B1 Data recorder
03/27/2002CN1342314A Information recording medium, information recording method and information recording/reproduction system
03/27/2002CN1341934A Data storage medium and its data fetch device
03/27/2002CN1341928A Electrode material and film for manufacturing press mould
03/27/2002CN1341927A Optical recording medium and producing method thereof
03/27/2002CN1341926A 光盘装置 CD-ROM device
03/27/2002CN1341925A 光传感器以及光信息记录再生装置 Optical sensor and an optical information recording and reproducing apparatus
03/27/2002CN1341924A Composite optical component and composite optical unit thereof
03/27/2002CN1341923A 光学记录介质和光学记录方法 Optical recording medium and optical recording method
03/27/2002CN1341922A Recording and/or replay device and method
03/27/2002CN1341921A Optical information recording equipment
03/27/2002CN1081820C Composite optical device and its manufacturing method
03/27/2002CN1081818C Magneto-optical disk drive supporting direct-over-write operation and write-after-erase operation
03/26/2002US6363209 Signal recording/reproducing method and apparatus, signal record medium and signal
03/26/2002US6363047 Optical recording medium processing apparatus
03/26/2002US6363046 Optical recording/pickup head compatible with a digital versatile disk (DVD) and a recordable compact disk (CD-R) using a holographic variable aperture
03/26/2002US6363044 Automatically adapting forward or reversed biased photodiode detection circuit
03/26/2002US6363043 Disklike recording media, a method for detecting forged disks, an anti-forgery system for performing a true-false judgement based on information collected from the recording media, and a manufacturing apparatus for recording information in the disks
03/26/2002US6363042 Optical disk drive having means for preventing inner reference clock signal in PLL circuit from being disturbed when defective portion is read
03/26/2002US6363041 Record carrier with variations of different physical parameters thereof in different frequency bands during recording
03/26/2002US6363040 CD-R medium recording method
03/26/2002US6363039 Disk tilting compensation with an offset signal to control the location of a light beam
03/26/2002US6363038 Optical pickup device minimizing an undesirable astigmatism
03/26/2002US6363037 Optical pickup apparatus with objective lens having a phase shift section
03/26/2002US6362927 Optical pickup capable of preventing tilting variation of an optical axis of an objective lens during movement thereof
03/26/2002US6361922 Thicker optical recording layers comprising a tetra dye having a metallized azo dianionic dye with cationic dye counterions
03/26/2002US6361846 Device for curing an adhesive between two layers of an information carrier
03/26/2002US6361845 Information-bearing discs and methods of fabrication
03/21/2002WO2002023545A1 Optical disk
03/21/2002WO2002023544A1 Optical recording medium
03/21/2002WO2002023543A1 Track error signal generator, track error signal generation method, controller, and conrol method
03/21/2002WO2002023542A1 Optical information recording medium and optical information recording method, optical information recording device
03/21/2002WO2001086647A3 Phase contrast variation of a photo-induced refractive material
03/21/2002WO2001086643A3 Methods and devices for recording marks on a recording surface of an optical record carrier
03/21/2002WO2001078068A3 Optical information medium