| 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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| 09/21/1993 | US5245736 Vacuum process apparatus |
| 09/16/1993 | WO1993018514A1 Method and device for recording-reading information on a moving optical or magneto-optical medium |
| 09/16/1993 | WO1993018512A1 Double-sided magneto-optical media for a multi-disk storage device |
| 09/16/1993 | WO1993018511A1 Recordable compact disk |
| 09/16/1993 | WO1993018510A1 Remote fine positioning mechanism |
| 09/16/1993 | WO1993018509A1 Detachable storage assembly |
| 09/15/1993 | EP0560727A1 Information storage method |
| 09/15/1993 | EP0560625A2 A magneto-optic memory medium and a method for producing the same |
| 09/15/1993 | EP0560318A2 Optical card and device to read same |
| 09/15/1993 | EP0282036B1 Apparatus for recording data into optical recording medium |
| 09/14/1993 | US5245601 Optical recorder and/or player including cleaning means |
| 09/14/1993 | US5245600 Apparatus for reproducing from a storage medium information corresponding to each stored musical arrangement and for mixing voice data with music data |
| 09/14/1993 | US5245599 Disc player using a servo loop with a variable transfer function |
| 09/14/1993 | US5245598 Method and apparatus for seek operations in an optical recording system including holding a focus error signal at track crossings |
| 09/14/1993 | US5245597 Method and device for correcting track deviation in optical disc drive |
| 09/14/1993 | US5245596 Optical head having a grating with a doubly periodic structure |
| 09/14/1993 | US5245595 Zone miss recovery system for disk drives using a modified constant angular velocity (MCAV) method of data recording |
| 09/14/1993 | US5245491 Magneto-optical head employing optical fiber connected stationary and movable portions |
| 09/14/1993 | US5245232 Linear actuator |
| 09/14/1993 | US5245182 Optical recording and/or reproducing apparatus with optical sensing of scanning mirror position |
| 09/14/1993 | US5245174 Focus sensing apparatus utilizing a reflecting surface having variable reflectivity |
| 09/14/1993 | US5245030 Durability, radiation resistance |
| 09/14/1993 | US5244775 Forming recording film on surface of replica substrate having information patterns, disposing pair of replica substrates provided with films so that films face each other, bonding and laminating pair with reaction-type adhesive; Shore hardness |
| 09/14/1993 | US5244774 Two dye layers and a polymer layer, high reflectance |
| 09/14/1993 | US5244706 Optical recording disk |
| 09/14/1993 | US5244705 Disc-shaped recording medium |
| 09/14/1993 | US5243919 Magnetic levitation actuator |
| 09/14/1993 | CA1322248C Reading circuit for optical recording medium |
| 09/14/1993 | CA1322247C Error signal generating circuit |
| 09/14/1993 | CA1322244C Data storage apparatus using optical servo tracks |
| 09/12/1993 | CA2091327A1 Process for storing information |
| 09/09/1993 | DE4306892A1 Accurate alignment of mould parts for synthetics - has one half located in approximate position against spring before closing mould on mating projection |
| 09/08/1993 | EP0559494A2 Crosstalk detecting apparatus |
| 09/08/1993 | EP0559493A2 Crosstalk detecting apparatus |
| 09/08/1993 | EP0559468A2 Information recording method and apparatus |
| 09/08/1993 | EP0559452A2 Optical read/write head and optical device for use therewith |
| 09/08/1993 | EP0559449A2 Optical disk, optical disk unit and optical disk producing method |
| 09/08/1993 | EP0559435A1 Improvements in holographic techniques |
| 09/08/1993 | EP0559277A1 Information recording device |
| 09/08/1993 | EP0559104A2 Optical disc recording apparatus |
| 09/08/1993 | EP0558852A2 An apparatus for recording and reproducing a digital audio signal |
| 09/08/1993 | EP0558640A1 Apparatus for recording, storing and electronically accessing images |
| 09/07/1993 | USH1233 Optical integrated device for a reproducing head for magneto-optical record |
| 09/07/1993 | US5243591 Protecting a read/write head from damage |
| 09/07/1993 | US5243590 Optical disc |
| 09/07/1993 | US5243589 Method for recording information in an optically readable data memory |
| 09/07/1993 | US5243588 Method and apparatus for reading digital data bursts comprising data clusters and cluster linking sectors |
| 09/07/1993 | US5243587 Disc playing apparatus capable of both long time reproduction and high speed access |
| 09/07/1993 | US5243586 Apparatus for retrieving a track on a recording medium by a light beam |
| 09/07/1993 | US5243585 Optical head including focusing error detecting system |
| 09/07/1993 | US5243584 Stabilized optical pick-up unit for use in a disk player |
| 09/07/1993 | US5243583 Optical pickup device with dual grating element |
| 09/07/1993 | US5243241 Totally magnetic fine tracking miniature galvanometer actuator |
| 09/07/1993 | US5243178 Focus detecting optical device utilizing two plane parallel plates |
| 09/07/1993 | US5242784 System and method for optical phase change recording |
| 09/07/1993 | US5242731 Transparent substrate, silicone resin layer containing a curing catalyst for providing surface of a substrate with projection/recess pattern and a recording layer |
| 09/07/1993 | US5242730 First layer contaioning light absorbing organic compound and asecond comprisimg a sulfide containing antimony |
| 09/07/1993 | US5242729 Optical recording medium |
| 09/07/1993 | US5242630 During pressing a pressure body of specified characteristics is interposed between pressure member and an element |
| 09/07/1993 | US5242629 Method of manufacturing an optically readable disc |
| 09/07/1993 | US5242558 Method for forming a thin film device |
| 09/07/1993 | CA1322052C Optically readable record carrier for recording information, method and apparatus for manufacturing such a record carrier, apparatus for recording information on such a record carrier, and apparatus for reading information recorded on such a record carrier |
| 09/02/1993 | WO1993017428A1 Disk reproducing apparatus |
| 09/02/1993 | WO1993017418A1 Method and device for optically reading a sound recording on a grooved recording medium |
| 09/02/1993 | WO1993017417A1 Optical recording medium, its recording method, its reproducing method, and method for generating tracking error signal |
| 09/02/1993 | WO1993016855A1 Process and device for removing a reflecting layer from a recording medium |
| 09/02/1993 | DE4305655A1 Servo controller for optical disc systems with compensation - based upon measured servo characteristic differences used to access compensation values held in memory |
| 09/01/1993 | EP0558293A2 An optical information recording-reproducing method and an apparatus using the method |
| 09/01/1993 | EP0558249A2 Optical information recording/reproducing apparatus |
| 09/01/1993 | EP0558184A2 Beam splitter |
| 09/01/1993 | EP0558052A1 Optical pickup for an optical disc player |
| 09/01/1993 | EP0557820A2 Azine neutromethine compounds |
| 09/01/1993 | EP0557797A1 Read-write head of an magneto-optical disc player |
| 09/01/1993 | EP0557717A2 CD playing apparatus |
| 09/01/1993 | EP0557584A1 Method of and apparatus for recording information on a writable optical disc |
| 09/01/1993 | EP0557501A1 Optical recording with near-infrared dyes to effect bleaching |
| 09/01/1993 | EP0411120B1 Laser reproduction apparatus |
| 09/01/1993 | CN1021995C Information recording discs |
| 08/31/1993 | US5241554 Laser diode of variable beam divergence and information processor using the same |
| 08/31/1993 | US5241531 Storage medium having read/write storage region and read-only storage region and a method for managing defective sectors in the storage medium |
| 08/31/1993 | US5241528 Optical pickup |
| 08/31/1993 | US5241526 Recording data producing system for optical recording |
| 08/31/1993 | US5241524 Method of edge recording on optical record medium |
| 08/31/1993 | US5241523 Polarization-based auto-focus apparatus |
| 08/31/1993 | US5241522 Optical disk apparatus using transition control between positioner seek control and lens seek control |
| 08/31/1993 | US5241424 Fine actuator |
| 08/31/1993 | US5241165 Erasable optical wallet-size data card |
| 08/31/1993 | US5241075 Photochromic spiropyran compounds |
| 08/31/1993 | US5240797 Electroplating red, green and blue organic pigments from colloidal dispersion containing redox-reactive surfactant |
| 08/31/1993 | US5240762 Organic thin film element |
| 08/31/1993 | CA1321790C Halogenated anthraquinone and their use as near infrared rays absorbing optical filters |
| 08/31/1993 | CA1321690C Injection molding die apparatus for use in the production of substrate of optical disk |
| 08/26/1993 | DE4205390A1 Verfahren zum entfernen einer reflektierenden schicht von einem aufzeichnungstraeger sowie vorrichtung zum durchfuehren dieses verfahrens A method for removing a reflective layer of a record carrier and device for carrying out said method |
| 08/25/1993 | EP0557212A2 Apparatus and method for optimizing performance in read/write head of an optical storage system with a magneto-optical storage medium |
| 08/25/1993 | EP0557147A1 Mold device for fabricating disc susbstrate and disc substrate fabricated by this mold device |
| 08/25/1993 | EP0557017A1 Optical disk apparatus |
| 08/25/1993 | EP0556466A1 Optical pickup control system of an optical disc player |
| 08/25/1993 | EP0556446A1 Optical pickup control system of an optical disc player |
| 08/25/1993 | CN1021939C Method for making optically readable media containing embossed information |
| 08/24/1993 | US5239533 Information recording medium |