| 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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| 08/30/1988 | CA1241441A1 Optically readable storage disc |
| 08/30/1988 | CA1241294A1 Dust cover |
| 08/30/1988 | CA1241218A1 Optical device |
| 08/30/1988 | CA1241196A1 Optical data storage medium having highly reflective organic information layer |
| 08/25/1988 | WO1988006339A1 Method for recording and reproducing data for an optical card |
| 08/25/1988 | WO1988006338A1 Optical disk |
| 08/25/1988 | WO1988006337A1 Optical recording medium |
| 08/25/1988 | WO1988006336A1 Instrument for the restitution of data |
| 08/25/1988 | WO1988006335A1 Data recording/reproducing apparatus for optical card |
| 08/25/1988 | WO1988006175A1 Substituted phthalocyanines |
| 08/25/1988 | DE3704263A1 IR methine dye |
| 08/25/1988 | DE3701664A1 Process for producing read-only optical storage disks |
| 08/24/1988 | EP0279696A2 Method of accessing track in still state of recording medium and apparatus thereof |
| 08/24/1988 | EP0279501A1 Novel naphthalocyanine dye,method for preparing the same, and optical information recording medium employing the same |
| 08/24/1988 | EP0279426A2 Optical recording member |
| 08/24/1988 | EP0279336A1 Apparatus for the reproduction of data |
| 08/24/1988 | EP0279287A2 Blends of thermoplastic polycarbonates and of thermoplastic styrol-maleic anhydride copolymers, and their use as carrier for optical memories |
| 08/23/1988 | US4766585 Tracking error detecting apparatus for optical head |
| 08/23/1988 | US4766584 Three-dimensional driving arrangement |
| 08/23/1988 | US4766583 Optical pickup device with objective lens movable in two directions |
| 08/23/1988 | US4766582 Optical head |
| 08/23/1988 | US4766504 Video disk and recorder with time recorded twice |
| 08/23/1988 | US4766502 Information signal recording apparatus |
| 08/23/1988 | US4766303 Optical information system having a birefringence plate movably disposed in accordance with the detected light intensity |
| 08/23/1988 | US4766171 Organic nonlinear optical substrates |
| 08/23/1988 | US4766054 Containing phthalo(naphthalo)cyanine dye |
| 08/23/1988 | US4766047 Using photo polymerizable monomer with hydrophobic and hydrophilic groups and unsaturated bond |
| 08/23/1988 | US4766026 Identification card with a visible authenticity feature and a method of manufacturing said card |
| 08/23/1988 | US4766021 Uniaxially oriented polymer film coated with polycrystalline metal layer of corresponding orientation |
| 08/23/1988 | US4765723 Objective lens system for optical reading device |
| 08/23/1988 | US4765656 Data carrier having an optical authenticity feature and methods for producing and testing said data carrier |
| 08/17/1988 | EP0278790A2 Recording elements comprising write-once thin film alloy layers |
| 08/17/1988 | EP0278789A2 Recording elements comprising write-once thin film alloy layers |
| 08/17/1988 | EP0278763A2 Information recording medium |
| 08/17/1988 | EP0278760A2 Optical card and apparatus for writing and/or reading data thereon |
| 08/17/1988 | EP0278446A2 Optical laser write and read method |
| 08/17/1988 | EP0278442A2 Optical recording medium comprising reflective graphite as substrate |
| 08/17/1988 | EP0278441A2 Optical recording medium comprising an azulenium dye |
| 08/17/1988 | EP0278406A2 Optical pickup head |
| 08/17/1988 | EP0278356A2 Optical recording method |
| 08/17/1988 | EP0278006A1 A disc device and a disc-like recording medium |
| 08/17/1988 | CN87107461A 信息存储装置 Information storage means |
| 08/16/1988 | US4764916 Reading circuit for an optical disk apparatus |
| 08/16/1988 | US4764914 Least squares method and apparatus for determining track eccentricity of a disk |
| 08/16/1988 | US4764913 Signal processing apparatus for disc memory devices |
| 08/16/1988 | US4764912 Optical focusing in magneto-optic disk system |
| 08/16/1988 | US4764911 Optical lens vibration control for optical information recording and/or reproducing apparatus |
| 08/16/1988 | US4764860 Servo circuit for an information recording and/or reproducing apparatus |
| 08/16/1988 | US4764331 Large diameter optical disk substrate made of polycarbonate |
| 08/16/1988 | US4763966 Infrared absorbent |
| 08/11/1988 | DE3802679A1 Information-storage medium |
| 08/10/1988 | EP0277799A2 Object positioning system |
| 08/10/1988 | EP0277793A2 Access control apparatus |
| 08/10/1988 | EP0277734A2 Information recording medium |
| 08/10/1988 | EP0277655A2 Card-form recording medium and data recording device therefor |
| 08/10/1988 | EP0277536A1 Device for the quasi-continuous treatment of substrates |
| 08/10/1988 | EP0277235A1 Optical disc. |
| 08/10/1988 | CN88100345A Method of recording and reproducing information |
| 08/10/1988 | CN88100163A Optical disk reproducing apparatus |
| 08/09/1988 | US4763314 Linear actuator for an optical disk storage apparatus |
| 08/09/1988 | US4763139 Optical information storage medium |
| 08/09/1988 | US4763134 Laser recording apparatus having variable recording magnification and beam intensity control |
| 08/09/1988 | US4763123 Signal selecting circuit for simultaneously performing plural input-output operations |
| 08/09/1988 | US4762770 High contrast optical memory disk |
| 08/09/1988 | CA1240419A1 Process and device for treating liquids with cation exchangers and anion exchangers |
| 08/04/1988 | DE3701747A1 Laser-scannable recording carrier for digital information |
| 08/03/1988 | EP0277028A2 Method of recording data on card-like recording medium |
| 08/03/1988 | EP0276897A2 Process for producing substrate for optical disk by annealing substrate with gradient double refraction distribution |
| 08/03/1988 | EP0276896A2 Optical information recording/reproducing apparatus |
| 08/03/1988 | EP0276873A1 Pickup apparatus for magneto-optical recording medium |
| 08/03/1988 | EP0276808A2 Method of recording and reproducing information |
| 08/03/1988 | EP0276326A1 Optical disc recording/reproducing apparatus |
| 08/02/1988 | US4761776 Device for determining a centring error of an optical disc relative to the axis of rotation of a turntable supporting the disc |
| 08/02/1988 | US4761775 Optical disc using tracking and clocking prepits and address prepits between adjacent ones of the tracking and clocking prepits, and an optical apparatus using such a disc |
| 08/02/1988 | US4761774 Optical disc drive apparatus |
| 08/02/1988 | US4761773 Tracking control apparatus |
| 08/02/1988 | US4761772 Optical disk recording and reproducing apparatus reliably providing access to desired tracks |
| 08/02/1988 | US4761692 Method and apparatus for data recording disc playback |
| 08/02/1988 | CA1240043A1 Optical disk storage unit having a servo system with different velocity inputs |
| 08/02/1988 | CA1240042A1 Tracking control arrangements for use in optical disc players |
| 08/02/1988 | CA1240041A1 Optical disk data format employing resynchronizable data sectors |
| 08/02/1988 | CA1239794A1 Laser recording film |
| 07/28/1988 | WO1988005592A1 Optical recording medium and production thereof |
| 07/28/1988 | DE3801546A1 Optical information-recording medium, and process for the production thereof |
| 07/28/1988 | DE3700995A1 CD player |
| 07/27/1988 | EP0276135A2 Information recording medium |
| 07/27/1988 | EP0275972A1 Disk recording device |
| 07/27/1988 | EP0275657A1 Optical recording medium |
| 07/26/1988 | US4760568 Optical information processing device |
| 07/26/1988 | US4760566 Method of controlling write operation for rotating type recording medium |
| 07/26/1988 | US4760565 High speed track access for optical disks using acousto-optic deflector |
| 07/26/1988 | US4760407 Laser printing apparatus with device for combining a plurality of optical beams provided with an integral-order wave plate |
| 07/26/1988 | US4760248 Portable laser diode scanning head |
| 07/26/1988 | US4760012 Signal recording disk |
| 07/26/1988 | US4759616 Method and apparatus for anamorphically shaping and deflecting electromagnetic beams |
| 07/26/1988 | CA1239727A1 Substrate for optical recording media |
| 07/20/1988 | EP0275199A2 Optical disk reproducing apparatus |
| 07/20/1988 | EP0275161A2 Use of near infrared sensitive chromophores in optical recording media |
| 07/20/1988 | EP0274572A2 Device for the optical scanning of objects, especially record discs |
| 07/20/1988 | EP0274567A2 Servo-system for positioning an optical beam |