| 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) |
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| 06/07/1995 | EP0655960A1 Pneumatic hub locking device for etching optical servo tracks on magnetic disks |
| 06/07/1995 | EP0645043A4 Apparatus for and method of verifying etching of optical servo information on magnetic media. |
| 06/06/1995 | US5421618 Plastic card provided with magnetic stripe |
| 05/30/1995 | US5420834 Optical disk recorders using disks coatings close to outer surfaces with optical path extending through a thick transparent substrate |
| 05/30/1995 | US5419733 Method of and apparatus for removing debris from the floptical medium |
| 05/17/1995 | EP0653758A2 Disc recording apparatus and file management method |
| 04/26/1995 | EP0650143A1 Hybrid information recording medium |
| 04/25/1995 | US5410530 Multiple data surface optical data storage system |
| 04/12/1995 | EP0648049A1 Information recording and reproducing method and apparatus |
| 04/12/1995 | EP0647170A1 A method of and apparatus for removing debris from the floptical medium |
| 04/11/1995 | US5406542 System for reducing crosstalk in an optical scanning device |
| 03/29/1995 | EP0645044A1 Steering laser beam while etching optical servo tracks for magnetic disks |
| 03/29/1995 | EP0645043A1 Apparatus for and method of verifying etching of optical servo information on magnetic media |
| 03/29/1995 | EP0644813A1 Acousto-optical intensity control of laser beam |
| 03/28/1995 | US5401549 Optical information recording medium |
| 03/23/1995 | WO1995008109A1 A measuring device for measuring the intensity and/or polarization of electromagnetic radiation, for determining physical properties of a preparation, and for reading information from a storage medium |
| 02/21/1995 | US5392271 Concurrent recording and reproducing optical disc and optical head apparatus for the same |
| 02/21/1995 | US5392262 Two-sided optical disks having recording layers disposed close to outer surfaces and spaced axially apart a greater distance and devices for using the disks |
| 02/14/1995 | US5389498 Photosensitive element for production of near infrared absorbing images; magnetic recording media |
| 02/01/1995 | EP0637016A2 Recording and reproducing apparatus |
| 01/25/1995 | EP0635787A1 Data recorder device in a disturbed environment |
| 01/25/1995 | EP0635785A1 Data recorder device in a disturbed environment |
| 01/20/1995 | CA2116878A1 Device for recording data in a perturbed environment |
| 01/10/1995 | US5381401 Multiple data surface optical data storage system |
| 01/10/1995 | US5381394 Optical pickup for an optical disc player |
| 12/14/1994 | EP0628964A2 Recording and/or reproducing apparatus |
| 12/14/1994 | CN1096389A Recording and reproducing appts. |
| 12/08/1994 | WO1994028545A1 Substrate for optical disc and optical disc which uses the substrate |
| 10/04/1994 | US5353268 Thermomagnetic recording system employing a medium having high storage density and direct-overwrite capability as a result of along-track isocoercivity |
| 09/28/1994 | EP0616718A1 Optical scanning device. |
| 08/24/1994 | EP0232134B1 Optical disc and disc drive apparatus for writing/reading data into/from the disc |
| 08/18/1994 | WO1994018673A1 Light-transmitting high recording density magnetic recording medium having an undercoating layer |
| 08/10/1994 | EP0609806A2 Plastic card provided with magnetic stripe |
| 08/10/1994 | EP0609617A2 Recording and reproducing apparatus |
| 08/03/1994 | EP0609013A2 Recording and reproducing apparatus |
| 08/02/1994 | US5334849 Apparatus for and method of verifying etching of optical servo information on magnetic media |
| 07/27/1994 | EP0608126A2 Information recording medium and method of fabricating same |
| 07/22/1994 | CA2113842A1 Recording and reproducing apparatus |
| 07/20/1994 | EP0606710A2 Photochemical generation of dyes |
| 07/06/1994 | EP0605125A2 Two-sided optical disks and devices for using the disks |
| 07/06/1994 | CN1025373C Photographic film with transparent magnetic layer and developing system for processing same |
| 06/29/1994 | EP0544731B1 Optical scanning device |
| 06/28/1994 | US5325350 Pick-up for selectively reading and writing an optical recording medium having pits and magnetic domains |
| 06/28/1994 | US5325344 Magneto-optical recording and reproducing device having integrally formed recording and reproducing magnetic heads |
| 06/28/1994 | US5325244 Magnetic recording data storage system |
| 06/21/1994 | US5323380 Information recording disc and system |
| 06/21/1994 | US5322987 Pneumatic hub locking device for etching optical servo tracks on magnetic disks |
| 06/08/1994 | EP0599901A1 Optical scanning device. |
| 06/07/1994 | US5319507 Recording/reproducing system using a flexible magnetic disk |
| 06/07/1994 | US5319481 Encapsulated liquid crystal optical read/write storage medium and system |
| 05/31/1994 | US5316806 Liquid crystal polymers |
| 05/25/1994 | EP0598503A2 Magnetic recording materials |
| 04/27/1994 | EP0594193A2 An information recording and reproducing device and a method using the same |
| 04/20/1994 | CN1085680A Record replaying apparatus |
| 04/13/1994 | EP0591636A2 Partial ROM magneto-optical disk medium and computer system |
| 04/12/1994 | US5303224 Optical pickup, optical information recording carrier and recording and reproducing apparatus thereof |
| 03/30/1994 | EP0589611A2 Recording/reproducing apparatus for disc-shaped recording medium, photodetector and optical head |
| 03/23/1994 | EP0587905A1 Data recording medium and data recording apparatus |
| 03/09/1994 | EP0586084A2 Reproducing apparatus |
| 03/01/1994 | US5291462 Optical disk having playback parameters recorded thereon and method for using same |
| 02/16/1994 | CN1082233A Recording and reproduction of items of information using rom-ram storage media |
| 02/15/1994 | US5287335 Optical disk device for record and reproduction of additional information besides reproduction of basic one |
| 02/01/1994 | US5283773 Steering laser beam while etching optical servo tracks for magnetic disks |
| 01/18/1994 | US5279775 Acousto-optical intensity control of laser beam during etching of optical servo information of magnetic media |
| 01/06/1994 | WO1994000274A1 A method of and apparatus for removing debris from the floptical medium |
| 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 |
| 12/29/1993 | EP0575934A2 Recording and reproduction of information in ROM-RAM storage media |
| 12/23/1993 | WO1993026007A1 Steering laser beam while etching optical servo tracks for magnetic disks |
| 12/23/1993 | WO1993026004A1 Apparatus for and method of verifying etching of optical servo information on magnetic media |
| 12/23/1993 | WO1993026003A1 Simultaneous mo and rom optical disk signal detection |
| 12/23/1993 | WO1993025343A1 Pneumatic hub locking device for etching optical servo tracks on magnetic disks |
| 12/23/1993 | WO1993025341A1 Acousto-optical intensity control of laser beam |
| 12/22/1993 | CN1023263C Controlling optical disk drive using mode set command |
| 11/23/1993 | US5265085 Simultaneous MO and ROM optical disk signal detection |
| 11/10/1993 | EP0568753A1 High-density optical data storage unit and method for writing and reading information |
| 10/19/1993 | US5255262 Multiple data surface optical data storage system with transmissive data surfaces |
| 10/14/1993 | WO1993020557A1 Data recording medium and data recording apparatus |
| 10/06/1993 | EP0564187A2 Recording and reproducing apparatus |
| 10/05/1993 | US5251196 Optical pick-up selectively reading and writing an optical and magneto-optical recorded medium |
| 09/22/1993 | EP0561435A2 Information transfer system, a transmitter, a receiver and a record carrier for use in the system |
| 09/22/1993 | EP0561000A1 Data recording medium, its production, and data recording/reproduction apparatus |
| 09/22/1993 | CN1076568A Information transfer system a transmitter, a receiver and a record carrier for use in the system |
| 09/14/1993 | CA1322244C Data storage apparatus using optical servo tracks |
| 09/01/1993 | EP0558052A1 Optical pickup for an optical disc player |
| 08/11/1993 | EP0555031A2 Recording and reproducing apparatus |
| 08/03/1993 | US5233576 Multi-function optical disk drive and media |
| 07/13/1993 | US5227885 Charge latent image recording medium and charge latent image reading out system |
| 07/13/1993 | CA1320269C Magneto-optic recording structure and method |
| 07/06/1993 | US5226029 Electric charge image recording medium and recording/reproducing apparatus |
| 06/24/1993 | WO1993012523A1 Optical scanning device |
| 06/17/1993 | DE4140806A1 Optische abtastvorrichtung Optical scanning device |
| 06/09/1993 | EP0545472A1 Closed information system with physical copy protection |
| 06/09/1993 | EP0544731A1 Optical scanning device. |
| 06/08/1993 | US5218599 Method of recording and reproduction of information using a recording medium available for information overlap recording, a recording medium and a recording and reproducing apparatus using the method |
| 05/26/1993 | EP0542910A1 Thermomagnetic recording system having high storage density and direct-overwrite capability. |
| 05/19/1993 | EP0542730A2 Optical disc and disc drive apparatus for writing/reading data into/from the disc |
| 05/04/1993 | US5208797 Magneto-optical recording media and apparatus |
| 05/04/1993 | US5208706 Magnetic reproduction apparatus and method |
| 04/15/1993 | WO1993007617A1 Data recording medium, its production, and data recording/reproduction apparatus |
| 04/13/1993 | US5202862 Magneto-optical recording and reproducing device having integrally formed recording and reproducing magnetic heads |