| 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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| 02/08/1994 | US5284691 Optical recording medium and method of reproducing information record on the optical recording medium |
| 02/08/1994 | US5284538 Optical disc having signal recording layer on each side and method for producing same |
| 02/08/1994 | US5284435 Apparatus for manufacturing a disc-shaped information carrier |
| 02/08/1994 | CA1326905C Optical recording medium and the method of recording, reading, and erasing information using it |
| 02/08/1994 | CA1326903C Three dimensional optical memory system |
| 02/03/1994 | WO1994002940A1 Magneto-optical recording materials system |
| 02/03/1994 | CA2141308A1 Magneto-optical recording materials system |
| 02/02/1994 | EP0581597A2 An optical information reproducing device |
| 02/02/1994 | EP0581519A2 Optical pick-up apparatus |
| 02/02/1994 | EP0581378A1 Machine for the offset printing of flat objects, in particular for compact discs |
| 02/02/1994 | EP0581117A1 Waveguide optical pick-up head using Mach-Zehnder interferometer wavefront sensor apparatus and method |
| 02/02/1994 | EP0580936A1 Diffraction element and optical pick-up assembly |
| 02/02/1994 | EP0580876A1 Optical recording medium, its recording method, its reproducing method, and method for generating tracking error signal |
| 02/02/1994 | EP0580873A1 Information recording medium, and recording and reproducing device therefor |
| 02/02/1994 | EP0580864A1 Data recording medium, data recording apparatus, data reproducing apparatus and data recording/reproducing apparatus |
| 02/01/1994 | US5283779 Rewritable optical disc |
| 02/01/1994 | US5283778 For optically reading data from recording tracks |
| 02/01/1994 | US5283777 Three-dimensional optical recording medium and optical information recording apparatus using the same |
| 02/01/1994 | US5283776 Track-counting method for use in optical disk apparatus |
| 02/01/1994 | US5283774 Optical disk storage having focus servocontrol system in accordance with astigmatism method |
| 02/01/1994 | US5283772 Optical head |
| 02/01/1994 | US5283771 Optical pickup head |
| 02/01/1994 | US5283690 Optical diffraction grating element |
| 02/01/1994 | US5283220 Reversible thermosensitive recording material |
| 02/01/1994 | US5283159 Containing thin reflective film |
| 02/01/1994 | US5283094 Optical recording medium |
| 02/01/1994 | CA2101657A1 Machine for the offset printing of flat objects, in particular for compact discs |
| 02/01/1994 | CA1326710C Optical information recording medium |
| 01/26/1994 | EP0580526A1 Electro-optic waveguide deflector using a nonlinear optic film or liquid-crystal overlay cell for use in an optical pickup head |
| 01/26/1994 | EP0580420A1 Optical disc system |
| 01/26/1994 | EP0580419A2 Optical disc apparatus |
| 01/26/1994 | EP0580346A2 High density optical disk |
| 01/26/1994 | EP0580066A2 Write/read device of optical information |
| 01/26/1994 | EP0579843A1 Phase varying device, and optical pickup apparatus using the same for magneto-optical storage |
| 01/25/1994 | US5282192 Optical disc apparatus using 4 separate detection elements with first and second multiplying means |
| 01/25/1994 | US5282190 Data storage disk drive with a piezoelectric member and a resilient member between a head and a disk |
| 01/25/1994 | US5282189 System for thermally erasing data stored on an optical recording medium |
| 01/25/1994 | US5282188 Apparatus and method for optimizing performance in read/write head of an optical storage system with a magneto-optical storage medium |
| 01/25/1994 | US5282187 Picture orientation markable photo compact disk and method and apparatus for using same |
| 01/25/1994 | US5282185 Apparatus for generating a data signal at an optimal phase |
| 01/25/1994 | US5282184 Focus control device of an optical disk apparatus |
| 01/25/1994 | US5281978 Object carriage system |
| 01/25/1994 | US5281802 Focus error signal detection device with separating prism |
| 01/25/1994 | US5281797 Short wavelength optical disk head having a changeable aperture |
| 01/25/1994 | US5281512 Optical information recording medium |
| 01/25/1994 | US5281501 Applying heat and radiation to a photochromic recording layer |
| 01/25/1994 | US5281373 Continuous processing, ultraviolet curing resin applied to substrate by contacting with roll stamper |
| 01/25/1994 | US5281371 Method and apparatus for forming substrate sheet for optical recording medium |
| 01/25/1994 | CA1326546C Optical pickup device |
| 01/20/1994 | WO1994001794A1 Polarizing element and optical element, and optical head |
| 01/19/1994 | EP0231380B1 Method of recording data onto an optical data recording card |
| 01/18/1994 | US5280572 Method and apparatus for storing text data in subcode packs |
| 01/18/1994 | US5280468 Optical recording medium |
| 01/18/1994 | US5280466 Optical disc and apparatus for reproducing signals recorded on the same |
| 01/18/1994 | US5280464 Optical disk apparatus having a focusing error correcting system |
| 01/18/1994 | US5280462 Disc playing and recording apparatus having a pair of heads controlled to prevent interruptions during play |
| 01/18/1994 | US5280160 Recording and reproducing method and apparatus compensating for predicted deviation based on detected relative skewing of recording medium |
| 01/18/1994 | US5280114 Halogen attached to benzene ring of phthalocyanine nucleus |
| 01/18/1994 | US5279932 Optical response element |
| 01/18/1994 | US5279924 Exposure and development regions of photoresist to form pattern; etching using ion beam |
| 01/18/1994 | US5279689 Laminating film to dimensionally stable transparent substrate; embossing in relief image; applying actinic radiation |
| 01/18/1994 | CA1326294C Writing device for optical memory card |
| 01/16/1994 | CA2098957A1 Waveguide optical pick-up head using mach-zehnder interferometer wavefront sensor apparatus and method |
| 01/13/1994 | DE4327685A1 Magnetic tape recording with optical head input - provided by head mounted on steel tape moving linearly along angled track relative to magnetic tape |
| 01/12/1994 | EP0578227A2 High density recording method for magneto-optical disc and magneto-optical recording and reproducing apparatus |
| 01/12/1994 | EP0578015A1 Optical information recording medium |
| 01/12/1994 | EP0387360B1 Cyanine compounds |
| 01/12/1994 | EP0332708B1 Methods of accessing an optical recording track |
| 01/12/1994 | CN2153093Y Photoelectric head with emission light convergence surface |
| 01/12/1994 | CN1080729A Polarization-sensitive beam splitter, method of manufacturing such a beam splitter and magneto-optical scanning device including such a beam splitter |
| 01/11/1994 | USRE34506 Product and process for manufacturing an optical disc master |
| 01/11/1994 | US5278821 Cleaning cartridge for an optical recording apparatus |
| 01/11/1994 | US5278820 Apparatus and method for a radial access mechanism for a disk player/recorder |
| 01/11/1994 | US5278817 Optical pick-up for use with an opto-magnetic signal |
| 01/11/1994 | US5278816 Recording/reproducing system using wavelength/depth selective optical storage medium |
| 01/11/1994 | US5278815 Digital data reproducing apparatus |
| 01/11/1994 | US5278814 Apparatus for recording and reproducing information on and from an optical disk |
| 01/11/1994 | US5278813 Optical recording/reproducing apparatus with light beam deflection means including wedge-shaped prism |
| 01/11/1994 | US5278812 Tracking and focussing functions in optical disk apparatus |
| 01/11/1994 | US5278579 Optical fiber support and storage device |
| 01/11/1994 | US5278401 Optical disc apparatus having five light receiving areas for detecting focus error and tracking error |
| 01/11/1994 | US5278126 Selectively heating the surface |
| 01/11/1994 | US5278026 Comprising photosensitive compounds |
| 01/11/1994 | US5278011 Reversible optical information-recording medium |
| 01/06/1994 | WO1994000841A1 Optical recording media containing uniform partially oxidized metal layer and method for their preparation |
| 01/06/1994 | WO1994000840A1 Optical recording media containing overcoat and method for their preparation |
| 01/05/1994 | EP0577369A2 Optical head and optical information reading apparatus |
| 01/05/1994 | EP0577366A2 Mastering compact disks and minidisks |
| 01/05/1994 | EP0577265A2 Light-receiving and amplifying device capable of widening an a.c. operation range |
| 01/05/1994 | EP0577214A2 Zoned record carrier |
| 01/05/1994 | EP0577199A1 Electro-optical scanning device and player comprising the scanning device |
| 01/05/1994 | EP0577197A1 Optoelectronic device and method of manufacturing same |
| 01/05/1994 | EP0577169A1 An installation for manufacturing registration carriers |
| 01/05/1994 | EP0346479B1 Optical head |
| 01/05/1994 | CN1080419A Device for optically scanning a surface |
| 01/05/1994 | CN1080418A Device for optically scanning a surface |
| 01/05/1994 | CN1023430C Method and apparatus for recording signals on a record carrier, measurement method and device for use in the recording method and apparatus, and record carrier |
| 01/04/1994 | US5276745 Integrated optic read/write head for optical data storage incorporating second harmonic generator, electro-optic tracking error actuator, and electro-optic modulator |
| 01/04/1994 | US5276743 Langmuir-Blodgett films in a waveguide optical pick-up head using Mach-Zehnder interferometers |
| 01/04/1994 | US5276674 Optical recording medium having thin protective layer and two-dimensionally aligned code words and recording/reproducing apparatus employing the same |