| 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) |
|---|
| 01/17/1989 | US4798781 Fabrication process of optical recording medium |
| 01/17/1989 | US4798776 Light receiving members with spherically dimpled support |
| 01/17/1989 | US4798767 Optical information record medium |
| 01/17/1989 | US4798447 Lens mounting for an electrodynamic device for recording on and/or scanning optical discs by means of a radiation spot, and method of manufacturing such a lens mounting |
| 01/17/1989 | CA1249058A1 Protected optical disk of welded construction |
| 01/17/1989 | CA1249057A1 Optical disc player |
| 01/17/1989 | CA1249056A1 Optical recording system |
| 01/17/1989 | CA1248796A1 Focussing error detecting apparatus |
| 01/17/1989 | CA1248755A1 Thin film amorphous optical recording films |
| 01/12/1989 | WO1989000330A1 Reader circuit for optical recording medium |
| 01/12/1989 | WO1989000329A1 Optical recording medium |
| 01/12/1989 | WO1989000310A1 Updatable micrographic pocket data card |
| 01/12/1989 | DE3801136A1 Process and apparatus for producing a data storage disc on which data are recorded, with a protective jacket, and a data storage disc |
| 01/12/1989 | DE3721850A1 Indoline-carbocyanine dyes |
| 01/12/1989 | DE3721739A1 Digital recording cassette |
| 01/11/1989 | EP0298688A2 Light beam deflection devices |
| 01/11/1989 | EP0298490A2 Semiconductor laser optical system |
| 01/11/1989 | EP0298447A2 Optical information recording medium |
| 01/11/1989 | CN1030319A Optical scanning device, mirror objective suitable for use therein and optical recording and/or reproducing apparatus provided therewith |
| 01/10/1989 | US4797872 Method for reproducing data recorded on optical card |
| 01/10/1989 | US4797871 Heating, cooling to transform from amorphous to crystalline thin film of germanium-tellurium |
| 01/10/1989 | US4797870 Optical recording and reproducing apparatus |
| 01/10/1989 | US4797868 Optical system employing a laser beam for focusing, tracking and transferring information signals with respect to a magneto-optical memory |
| 01/10/1989 | US4797867 Pick-up head for optical information storage disk |
| 01/10/1989 | US4797866 Optical recording/reproducing apparatus |
| 01/10/1989 | US4797752 Information storage carrier and method for storing duplicate information |
| 01/10/1989 | US4797545 Optical head device having positionally adjustable parts |
| 01/10/1989 | US4797316 Etched glass and process of manufacturing same |
| 01/05/1989 | DE3721054A1 Low-birefringence moulding compositions |
| 01/04/1989 | EP0297885A2 Integrated semi conductor laser device |
| 01/04/1989 | EP0297649A1 Device for optically scanning a rotating disc |
| 01/04/1989 | EP0297634A2 Alternate storage areas in magnetooptical media |
| 01/04/1989 | EP0297318A1 Method for scanning and producing disc-like optical record carriers, and disc-like optical record carrier |
| 01/04/1989 | EP0297285A2 Compatible blends of polycarbonate and polymethacrylate |
| 01/04/1989 | EP0198894B1 Optical data reader |
| 01/04/1989 | CN1030155A Method of device for scanning radiation-sensitive surface of rotating carrier with radiation beam |
| 01/03/1989 | US4796252 Optical assembly comprising a holder and an optical element, and device provided with said optical assembly |
| 01/03/1989 | US4796250 Optical recording and reproducing apparatus including a disc extraction area for power setting a laser |
| 01/03/1989 | US4796249 System to ascertain the scanning speed of audio disks with contactless scanning |
| 01/03/1989 | US4796248 Objective lens drive device |
| 01/03/1989 | US4796247 Compact disc (CD) player and method of compensating for tracking jumps |
| 01/03/1989 | US4796246 Method and apparatus for beam-track alignment in optical disk apparatus |
| 01/03/1989 | US4796245 Optical disc reader having lens mounting with improved positioning control |
| 01/03/1989 | US4796242 Scanning optical card reader |
| 01/03/1989 | US4796098 Banded and interleaved video disc format with duplicate information stored at different disc locations |
| 01/03/1989 | US4796097 Optical disc recording apparatus for a color television signal |
| 01/03/1989 | US4795958 Servomechanism for recording disk reproducing system |
| 01/03/1989 | US4795726 Removal of carbonaceous material and contaminating metal under controlled conditions |
| 01/03/1989 | US4795695 Recording elements comprising write-once thin film alloy layers |
| 01/03/1989 | US4795528 Masing substrate, forming pits, filling with ablative deposits |
| 01/03/1989 | US4795511 Method of manufacturing an optically readable disc record and disc record manufactured in accordance with the method |
| 01/03/1989 | CA1248229A1 Optical memory element |
| 01/03/1989 | CA1248228A1 Servo system of storage apparatus for controllably projecting an optical beam to an optical disk |
| 01/03/1989 | CA1248227A1 Process for storage on a disk of a plurality of series of data intended for different users, and the disk produced by this process |
| 01/03/1989 | CA1247862A1 Binder-mixtures for optical recording layers and elements |
| 12/29/1988 | WO1988010495A1 Error signal generator circuit |
| 12/29/1988 | WO1988010494A1 Optical data storage |
| 12/29/1988 | WO1988010493A1 Integrated optical read/write head and apparatus incorporating same |
| 12/29/1988 | WO1988010492A1 Objective lens driving device |
| 12/29/1988 | WO1988010491A1 Installation for reproducing data from an optical disc |
| 12/29/1988 | WO1988010405A1 Optical scanning head |
| 12/29/1988 | DE3819876A1 Optical disc |
| 12/29/1988 | DE3720525A1 Lacquering system for Compact Discs |
| 12/28/1988 | EP0296876A2 Naphthalocyanine derivatives and their use in optical recording medium |
| 12/28/1988 | EP0296716A2 Data storage device having a phase change memory medium reversible by direct overwrite and method of direct overwrite |
| 12/28/1988 | EP0296678A1 Method of and device for scanning a radiation-sensitive surface of a rotating carrier with a radiation beam |
| 12/28/1988 | EP0296677A1 Injection moulding device for manufacturing discs from a synthetic material, and method of manufacturing information discs from a synthetic material by means of an injection moulding device |
| 12/28/1988 | EP0296590A2 Optical card processing apparatus |
| 12/28/1988 | EP0296472A1 Use of moulding compositions with small birefringence for record carriers |
| 12/28/1988 | EP0296458A2 A focus and tracking support for an optical record lens |
| 12/28/1988 | EP0296338A2 Optical disc system |
| 12/28/1988 | CA1247410A Holographic optical apparatus for use with expanded- beam type fiber optical components |
| 12/27/1988 | US4794586 Rotary access arm for optical disks |
| 12/27/1988 | US4794585 Optical head having a hologram lens and polarizers for use with magneto-optic medium |
| 12/27/1988 | US4794584 Method and apparatus for scanning the recording surface of a rotating disc-shaped record carrier |
| 12/27/1988 | US4794582 Method and apparatus for preventing duplex recording on information recording medium |
| 12/27/1988 | US4794581 Lens support system enabling focussing and tracking motions employing a unitary lens holder |
| 12/27/1988 | US4794580 Pickup system in optical information recording and reproducing apparatus with damped lead wires |
| 12/27/1988 | US4794579 Circuit for remote-scanning audio or video disk player for contactless scanning with coarse and fine drive mechanisms for radial servo readjustment |
| 12/27/1988 | US4794287 Linear motor |
| 12/27/1988 | US4794244 Method and apparatus for detecting focussing position deviation of read/write apparatus in an optical recording medium |
| 12/27/1988 | US4794068 Spiropyrane photochromic dye; stability |
| 12/27/1988 | US4793792 Doping nickel-cobalt surface with titanium, nitrogen, phosphorus, boron, carbon and oxygen ions |
| 12/27/1988 | US4793696 Method and apparatus for rapid focus control in an optical data storage device |
| 12/27/1988 | US4793688 Photo electro device, method for manufacture of same, and lens support frame for use in such photo electro device |
| 12/21/1988 | EP0295759A2 Apparatus for using differential data detection in write protection of an optical recorder |
| 12/21/1988 | EP0295687A1 Reading and/or writing device for the auxiliary track of a cinematographic film, especially for the sound track and illuminating head for this device |
| 12/21/1988 | EP0295682A2 Wavelength selective optical recording and reproducing device |
| 12/21/1988 | EP0295313A1 Optical memorizing device |
| 12/21/1988 | EP0295282A1 Flexure supported read/write head |
| 12/20/1988 | US4792936 Process for defining and modifying a partition of the storage space of a non-erasable carrier |
| 12/20/1988 | US4792935 Objective lens driving device with multipole magnet |
| 12/20/1988 | US4792933 Optical recording/reproducing apparatus having disk lifetime estimating device |
| 12/20/1988 | US4792707 Disk tracking device |
| 12/20/1988 | US4792674 Optical head assembly and element holder with positional adjustment |
| 12/20/1988 | US4792501 Multilayered article including crystallization inhibiting layer and method for fabricating same |
| 12/20/1988 | US4792474 Aluminum silicon nitride dielectric film |
| 12/20/1988 | US4792227 Apparatus for measuring the refractive index of a substrate for an optical recording medium and method of measuring the same |
| 12/20/1988 | CA1247237A1 Optical memory device |
| 12/20/1988 | CA1246912A1 Apparatus for scanning sheet-shaped recording medium |