| 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) |
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| 03/02/1999 | US5877644 Programmable digital envelope following threshold generation apparatus and method |
| 03/02/1999 | US5877605 Servo device having plural servo systems |
| 03/02/1999 | US5877579 Ceramic motor |
| 03/02/1999 | US5877493 Optical sensing apparatus |
| 03/02/1999 | US5876858 Magneto-optical recording medium with magnetic film having large magnetic anisotropy |
| 03/02/1999 | US5876823 Optical information medium, method for producing the optical information medium, and unit for producing the optical information medium |
| 03/02/1999 | US5876822 Reversible optical information medium |
| 03/02/1999 | US5876821 Tetra dye mixed with another dye or dyes for optical recording elements |
| 03/02/1999 | US5876820 Optical information recording medium and composition for optical information recording film |
| 03/02/1999 | US5876082 Device for gripping and holding substrates |
| 02/25/1999 | WO1999009554A1 Compact disc in check or business card format |
| 02/25/1999 | WO1999009553A1 Optical spot generation device for recording medium |
| 02/25/1999 | WO1999009552A2 Optical pickup apparatus, holder and method of producing optical pickup apparatus |
| 02/25/1999 | WO1999009551A1 Reading/recording method and apparatus for three-dimensional information carrier |
| 02/25/1999 | WO1999009550A1 Reading/recording method and apparatus for three-dimensional information carrier |
| 02/25/1999 | WO1999009548A1 Disk and drive system and methods with carbon overcoat for load/unload applications |
| 02/25/1999 | WO1998053455A3 System and method for cleaning head assemblies and data storage disks |
| 02/24/1999 | EP0898273A2 Optical information recording medium and method of manufacturing the same |
| 02/24/1999 | EP0898272A2 Optical recording medium and recording and reproducing method using the same |
| 02/24/1999 | EP0898271A2 Optical record carrier and apparatus for recording and reproduction of optical record carrier |
| 02/24/1999 | EP0898270A2 Optical disc and recording/reproduction method therefor |
| 02/24/1999 | EP0897577A1 Photorefractive composite |
| 02/24/1999 | EP0897533A1 Device and method for measuring birefringence in an optical data carrier |
| 02/24/1999 | EP0788104B1 Multimedia optical disk capable of preserving freshness of image content for long time and its reproduction apparatus and method |
| 02/24/1999 | CN1208925A Device, method and recording medium for preventing non-authorized data copying having secret code copying manager information |
| 02/24/1999 | CN1208923A Method and apparatus for mfg. disc-shaped recording medium |
| 02/24/1999 | CN1208922A Method of recycling disk recording medium and apparatus for recovering metal reflective film |
| 02/24/1999 | CN1208921A Optical disc and recording/reproduction method onto/from optical disc |
| 02/24/1999 | CN1208920A High-density read-only optical disk |
| 02/24/1999 | CN1208919A Optical disk satisfying plural standards |
| 02/24/1999 | CN1208918A Optical head and optical disk apparatus |
| 02/24/1999 | CN1208917A Information recording medium |
| 02/24/1999 | CN1208915A Apparatus for recording and/or reproducing data onto and/or from optical disk and method thereof |
| 02/24/1999 | CN1042234C Hard coat material comprising high-hard transparent resin |
| 02/23/1999 | US5875171 Interlocking disk stack that prevents disk slip in a storage disk |
| 02/23/1999 | US5875170 Optical data carriers and reading devices therefor |
| 02/23/1999 | US5875168 Pickup device for a disk drive device |
| 02/23/1999 | US5875167 Optical head device |
| 02/23/1999 | US5875166 Optical pick-up apparatus having low coefficient of friction between slide bearing and guiding member |
| 02/23/1999 | US5875164 Apparatus and method for recording and reproducing information from a plurality of recording medium having different thickness and recording densities |
| 02/23/1999 | US5875163 For controlling rotation of an information recording medium |
| 02/23/1999 | US5875162 Optical information recording and/or reproducing apparatus improved in servo characteristics |
| 02/23/1999 | US5875161 Method and apparatus for accessing track on an optical disc |
| 02/23/1999 | US5875160 Method and device for initializing optical recording medium of phase change type, and optical recording medium |
| 02/23/1999 | US5875159 Optical device which can generate tracking signal using split photo detecting devices |
| 02/23/1999 | US5875158 Servo control system for information storage device |
| 02/23/1999 | US5875157 For use in a wobbled groove optical recording medium system |
| 02/23/1999 | US5875156 Playback system for an optical disc representing a character or a graphic pattern formed by specified pit patterns |
| 02/23/1999 | US5875155 Optical disk unit having reduced recording and reproducing errors |
| 02/23/1999 | US5875076 Asymmetrical actuator structure for recording-reproducing apparatus |
| 02/23/1999 | US5875052 Optical information storage systems and methods using heterostructures comprising ternary group III-V nitride semiconductor materials |
| 02/23/1999 | US5874730 Optical pickup employing a vertical cavity surface-emitting laser diode |
| 02/23/1999 | US5874187 Photo recording medium |
| 02/23/1999 | US5874147 Aluminum, gallium, indium nitride thin films on substrate |
| 02/23/1999 | US5874132 Video or compact disks; reduced thickness distribution of a resin layer and improved productivity |
| 02/23/1999 | CA2156115C Optical information recording device and method |
| 02/23/1999 | CA2147336C Method of and apparatus for recording and reproducing optical information |
| 02/23/1999 | CA2131584C Optical information recording/reproducing system |
| 02/18/1999 | WO1999008282A1 Optical disk, reproduction apparatus, and reproduction method |
| 02/18/1999 | WO1999008281A1 Optical disk, reproduction apparatus, and reproduction method |
| 02/18/1999 | WO1999008280A1 Optical disk, reproduction apparatus, and reproduction method |
| 02/17/1999 | EP0897177A1 Optical information recording medium, method for producing the same, and method for recording and reproducing optical information |
| 02/17/1999 | EP0896715A2 Scanning device for optical discs |
| 02/17/1999 | EP0896553A1 Optical recording medium having a plurality of discrete phase change data recording points |
| 02/17/1999 | CN1208225A Information recording carrier and manufacturing method thereof |
| 02/17/1999 | CN1208224A Optical sensing head device |
| 02/17/1999 | CN1208223A Laser head device |
| 02/17/1999 | CN1208222A Method and apparatus for controlling optical output of laser diode |
| 02/17/1999 | CN1208221A Superresolution optical pickup apparatus |
| 02/17/1999 | CN1208219A Data reproduction apparatus for disk medium |
| 02/17/1999 | CN1208056A Photo-curing resin composition for DVD |
| 02/16/1999 | US5872880 Hybrid-optical multi-axis beam steering apparatus |
| 02/16/1999 | US5872768 Optical discs with cover sheets and pressure equalization of the enclosed air |
| 02/16/1999 | US5872767 Optical disk and an optical disk recording/reproduction device having address blocks located on boundary lines between adjoining tracks |
| 02/16/1999 | US5872766 Device for adjusting the preload of a plate spring for an optical pickup apparatus |
| 02/16/1999 | US5872764 Light emitter-receiver device and optical reading system |
| 02/16/1999 | US5872763 Method and device for recording on optical disc |
| 02/16/1999 | US5872762 Integrated optical system |
| 02/16/1999 | US5872761 Optical disk apparatus and optical head thereof |
| 02/16/1999 | US5872760 Optical pickup for correcting an astigmatic difference of light |
| 02/16/1999 | US5872759 Photodetector with regions to detect reflected light pass through central portion and non-central portion of an objective lens |
| 02/16/1999 | US5872758 Method of manufacturing tape-like information carriers and a web-like intermediate carrier |
| 02/16/1999 | US5872754 Data reproduction apparatus |
| 02/16/1999 | US5872753 Optical disk driving apparatus with tracking control |
| 02/16/1999 | US5872750 Optical disk, and information recording/reproduction apparatus |
| 02/16/1999 | US5872749 Arrangement for reading an optically readable carrier |
| 02/16/1999 | US5872747 Computer-implemented method |
| 02/16/1999 | US5872723 In a system for creating, reading and writing on rotatable information storage media an apparatus for determining drive mechanism aging characteristics |
| 02/16/1999 | US5872663 Apparatus and method for fabricating a deflection mirror tower |
| 02/16/1999 | US5872662 Optical pick-up apparatus |
| 02/16/1999 | US5872439 Motor control device |
| 02/16/1999 | US5871882 Optical recording medium comprising a substrate, a reflecting layer and a recording layer |
| 02/16/1999 | US5871881 Multilayer optical information medium |
| 02/16/1999 | CA2088188C An optical information recording and reproducing device |
| 02/16/1999 | CA2087108C Master plate of optical memory device and manufacturing method thereof |
| 02/11/1999 | WO1999007043A1 Surface emission semiconductor laser |
| 02/11/1999 | WO1999006995A1 Synchronous dubbing method and system in compact disc-cassette player |
| 02/11/1999 | WO1999006994A1 Apparatus for protecting and/or repairing an optical surface |
| 02/11/1999 | WO1999006888A1 Radiation curable resin composition |
| 02/11/1999 | WO1999006501A1 Liquid-crystal composition and polymeric liquid crystal obtained by polymerizing the same |