| Patents for G11B 13 - Recording simultaneously or selectively by methods or means covered by different main groups; Record carriers therefor; Reproducing simultaneously or selectively therefrom (1,475) |
|---|
| 03/23/1993 | US5197050 Flying head for a magneto-optical recording drive |
| 03/23/1993 | US5197048 Magneto-optic recording medium, magneto-optic recording system and magneto-optic recording method |
| 03/04/1993 | WO1993004471A1 Optical scanning device |
| 03/02/1993 | CA1314100C Managing data storage space on large capacity record media |
| 03/02/1993 | CA1314099C Self-clocking encoding/decoding film information exchange system using dedicated magnetic tracks on film |
| 02/25/1993 | DE4127840A1 Optische abtastvorrichtung Optical scanning device |
| 01/20/1993 | EP0523900A2 method of detecting information from an optical or magnetooptical recording medium, and an optical recording medium |
| 01/09/1993 | CA2073310A1 Method of detecting information from magnetooptical recording medium, method of detecting information from optical recording medium, and optical recording medium |
| 12/30/1992 | CN1019703B Magnetooptical recording media |
| 12/22/1992 | US5173886 Composite optical disc having both a data read-only area and a data rewritable area, and a recording/reproducing system for use therewith |
| 12/15/1992 | US5172369 Optical pickup, optical information recording carrier and recording and reproducing apparatus thereof |
| 12/09/1992 | EP0517490A2 Multiple data surface optical medium and data storage system |
| 11/24/1992 | US5166913 Optical disk device for record and reproduction of additional information besides reproducing of basic information |
| 11/10/1992 | CA1310113C Magneto-optical recording system |
| 11/03/1992 | US5161135 Magneto-optical disc memory apparatus including a header signal and magneto-optical signal level adjusting circuit |
| 10/27/1992 | US5159586 Device for processing optical data |
| 07/28/1992 | US5134605 Optically readable media utilizing scanning tunneling microscope for excitation |
| 06/30/1992 | US5126985 Method of recording information on a record carrier of the thermomagnetic type, and device for carrying out the method |
| 06/09/1992 | US5121371 Optical servo system for magnetic disk |
| 06/03/1992 | CN1061673A Magnetooptical recording media |
| 05/13/1992 | EP0484779A2 Magnetic media containing a half-checkered reference track for referencing the magnetic head position |
| 05/06/1992 | CN1060918A Controlling optical disk drive using mode set command |
| 04/14/1992 | CA1298704C Magnetooptical recording medium |
| 04/08/1992 | EP0479547A2 Rigid disk and signal recording and reproducing method using same |
| 03/05/1992 | WO1992003821A1 Optical scanning device |
| 02/27/1992 | DE4026875A1 Optische abtastvorrichtung Optical scanning device |
| 02/25/1992 | US5091277 Bringing reproduction member to confront with surface of master recording medium across a gap, causing space discharge across gap, transferring charge image across gap to surface of reproduction member |
| 02/20/1992 | WO1992002931A1 Thermomagnetic recording system having high storage density and direct-overwrite capability |
| 02/19/1992 | EP0471527A2 Magnetic recording medium and information recording-reproduction method using the same |
| 12/26/1991 | WO1991020077A1 Optical servo system for magnetic disk |
| 12/18/1991 | EP0461907A2 Magneto-optical recording/reproducing device |
| 12/18/1991 | EP0461619A2 Information memory medium and information recording/holding process making use of the medium |
| 12/03/1991 | US5070494 Optical pickup device with dual-mode drive mechanism |
| 11/21/1991 | DE4114234A1 Optical recording and storage disc system - uses information from designated data control tracks to determine type of light recording medium and data format used |
| 11/19/1991 | US5067039 High track density magnetic media with pitted optical servo tracks and method for stamping the tracks on the media |
| 09/11/1991 | EP0445825A2 Information recording method/apparatus and information reproducing method/apparatus |
| 09/04/1991 | EP0444766A2 Optical pickup, optical information recording carrier and recording and reproducing apparatus thereof |
| 08/21/1991 | EP0441967A1 Optical recording medium, data recording method and data reproducing method |
| 08/20/1991 | US5041356 Process for preparing optical recording material |
| 07/09/1991 | US5031162 Magneto-optical recorded medium with a transparent substrate layer |
| 07/03/1991 | EP0215846B1 Two-sided optical recording medium |
| 06/26/1991 | EP0434230A2 Optical recording medium and method of recording and reproducing information thereon |
| 06/11/1991 | US5023854 Disc having a data read-only area and a data recording arm and a recording reproducing system therefor |
| 05/22/1991 | EP0428321A2 Magnetic-optical recording media and apparatus |
| 05/07/1991 | US5014253 Optical pick-up for selective playback and recording on a magneto-optically recorded medium |
| 05/02/1991 | EP0425125A2 System with a multi-function optical disk and drive for it |
| 04/24/1991 | EP0423662A2 High track density magnetic media with pitted optical servo tracks and method for stamping the tracks on the media |
| 04/24/1991 | EP0423661A2 Dual magnetic head and method for writing on very high track density and conventional track density floppy disk |
| 03/26/1991 | US5003525 Apparatus for reading a magneto-optical disk |
| 03/06/1991 | EP0415763A2 Scanning tunneling microscope utilizing optical fluorescent for reading |
| 03/01/1991 | CA2021582A1 Scanning tunneling microscope utilizing optical fluorescent for reading |
| 02/27/1991 | EP0414516A2 Optical recording medium |
| 02/26/1991 | WO1991003046A1 Optical recording medium, data recording method and data reproducing method |
| 02/26/1991 | US4996677 Multichannel magnetic and optical linear head |
| 02/26/1991 | CA2023961A1 Optical recording medium |
| 01/15/1991 | US4985881 Record carrier for a magneto-optical disc memory having guide grooves of a plurality of tracks disposed with a predetermined relation to light spot diameter |
| 12/12/1990 | CN1047750A Method and apparatus for recording signals on a record carrier, measurement method and measurement device for use in the recording method and the recording apparatus, and record carrier |
| 12/11/1990 | US4977419 Self-clocking encoding/decoding film information exchange system using dedicated magnetic tracks on film |
| 12/05/1990 | EP0400726A1 Method and apparatus for recording signals on a record carrier, measurement method and measurement device for use in the recording method and the recording apparatus, and record carrier |
| 12/04/1990 | CA1277419C Magnetic data storage media |
| 11/28/1990 | EP0139021B1 Thermomagnetic optical recording method |
| 11/27/1990 | CA1277028C Optical disc and disc drive apparatus for writing/reading data into/from the disc |
| 11/22/1990 | EP0398656A2 Electric charge image recording medium and recording/reproducing apparatus |
| 11/14/1990 | CN1010443B Data storage apparatus |
| 11/06/1990 | US4969058 CArriage assembly for high track density flexible magnetic disk drive |
| 10/23/1990 | US4965784 Method and apparatus for bistable optical information storage for erasable optical disks |
| 10/03/1990 | EP0390263A1 Device for inscribing and/or reading a magneto-optical information carrier |
| 10/03/1990 | EP0390260A1 Device for inscribing and/or reading a magneto-optical information carrier |
| 10/03/1990 | EP0390259A1 Device for inscribing and/or reading a magneto-optical information carrier |
| 09/18/1990 | US4958245 Apparatus and method for optical servo control with media having information storage and servo control regions of different reflectivities |
| 09/11/1990 | US4956243 Optical memory element |
| 09/05/1990 | CN1009507B Liquid crystal disc memory |
| 07/24/1990 | US4944037 Optical system for recording information in erasable and non-erasable modes |
| 06/12/1990 | US4933926 Image forming medium, method and apparatus |
| 05/16/1990 | EP0368268A2 Carriage assembly for high track density flexible magnetic disk drive |
| 05/02/1990 | CN1041834A Self-clocking encoding/decoding film information exchange system using dedicated magnetic tracks on film |
| 04/19/1990 | WO1990004253A1 Self-clocking encoding/decoding film information exchange system using dedicated magnetic tracks on film |
| 04/18/1990 | CA2000808A1 Magnetooptical recording media |
| 04/11/1990 | EP0363147A2 Recording and reproducing apparatus and recording and reproducing method and recording medium for the recording and reproducing method |
| 02/27/1990 | US4905215 System for reading information from two storage layers of an optical disk in different manners |
| 01/23/1990 | US4896292 Apparatus for the reversible, optical storage of data |
| 01/10/1990 | EP0350078A1 Optical information carrier and optical cards |
| 01/09/1990 | US4893207 Magnetic writing and optical reading head for a data carrier |
| 12/14/1989 | WO1989012302A1 Bistable optical storage for erasable optical disks |
| 11/08/1989 | EP0189187B1 Magnetic-optical disc memory system |
| 10/11/1989 | EP0336419A2 Apparatus and method for optical servo control with media having information storage and servo control regions of different reflectivities |
| 08/16/1989 | CN1034820A Method of recording information on a record carrier of the thermomagnetic type, and device for carrying out the method |
| 08/15/1989 | US4858218 Optical recording medium and reproducing apparatus |
| 07/04/1989 | US4845695 Optical disk memory system utilizing a chiral smectic liquid crystal |
| 06/29/1989 | WO1989006038A1 Magneto-optical recording medium |
| 06/27/1989 | US4843494 Data storage apparatus using optical servo tracks |
| 06/27/1989 | US4842381 Electrochromic data recording systems |
| 06/21/1989 | EP0321027A2 Method of recording information on a record carrier of the thermomagnetic tye, and device for carrying out the method |
| 06/06/1989 | US4837758 Magneto-optical recording reproducing device having field applying means |
| 06/06/1989 | US4837745 Process for the reversible optical storage of data |
| 05/23/1989 | US4832456 Liquid crystal disc memory with circular grooves for auto-focusing of write-in beam |
| 04/26/1989 | EP0313334A2 Magneto-optic recording medium and method of magneto-optic recording using the same medium |
| 04/26/1989 | CN1032600A Data storage apparatus |
| 04/19/1989 | EP0311859A2 Data storage apparatus |
| 04/12/1989 | EP0310812A1 Method for reducing noise in a data signal and optical pick-up device |