| Patents for G11B 11 - Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group; Record carriers therefor (14,351) |
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| 07/20/1994 | EP0606886A2 Magneto-optic recording system |
| 07/20/1994 | EP0606499A1 Device and method for disc recording |
| 07/20/1994 | EP0606498A1 Magneto-optic recording medium and method of its manufacture method |
| 07/20/1994 | EP0606389A1 Optical head for magneto-optical system. |
| 07/20/1994 | CN1089744A Optical-magnetic recording carrier and manufacture of same |
| 07/19/1994 | US5331625 Optical disc with antistatic coating containing tin oxide and phosphorous |
| 07/19/1994 | US5331621 Optical pickup apparatus and a hologram element used for same |
| 07/19/1994 | US5331617 Audio data recording/reproduction device having digital high speed dubbing function and audio data dubbing system using such devices |
| 07/19/1994 | US5331612 Magneto-optical recording apparatus using the magnetic field modulation method |
| 07/19/1994 | US5331611 Transmission mechanism for magnetic-field generating device in photo-magnetic type recording/reproducing apparatus |
| 07/19/1994 | US5331477 Low voltage, constant current magnetic transducer drive system for digital recording |
| 07/19/1994 | US5331445 Increased Bragg angle sensitivity hologram system and method |
| 07/19/1994 | US5330852 Magneto-optical memory and method of producing such a memory |
| 07/13/1994 | EP0606157A2 Reproducing recording media |
| 07/13/1994 | EP0606155A2 A magneto-optical recording medium and a method of recording and/or reproducing using the same |
| 07/13/1994 | EP0606145A2 Recording method of recording medium |
| 07/13/1994 | EP0606129A2 Magneto-optical recording and reproducing device |
| 07/12/1994 | US5329517 Optical information recording and reproducing apparatus utilizing a plurality of recording light spots |
| 07/12/1994 | US5329512 Temperature detection of a magneto-optic recording medium for controlling irradiation of an erasure region |
| 07/12/1994 | US5329505 System and method for overwriteable magneto-optical recording |
| 07/12/1994 | US5329504 Disc cartridge loading apparatus |
| 07/12/1994 | US5329503 Magneto-optical disc recording/reproducing apparatus |
| 07/12/1994 | US5329408 Magnetic field modulation magnet-optical recording apparatus in which an FM modulator and a magnetic head driving circuit are used in common |
| 07/12/1994 | US5328740 Magneto-optical recording medium and method for processing the surface |
| 07/07/1994 | WO1994015335A1 Method of reading a recording medium and system using said method |
| 07/07/1994 | WO1994015334A1 Data recording medium, recorder, reader and recording method |
| 07/06/1994 | EP0605239A1 Information recording and/or reproducing apparatus |
| 07/06/1994 | EP0605125A2 Two-sided optical disks and devices for using the disks |
| 07/06/1994 | EP0604946A1 Optical disc for a vehicle navigation system having both a read-only area and a userwritable area |
| 07/06/1994 | CN1089053A Recording and reproducing apparatus for data storage and/or audio |
| 07/05/1994 | US5327417 Optical disk drive and read/write apparatus |
| 07/05/1994 | US5327416 Surface selection mechanism for optical storage system |
| 07/05/1994 | US5327414 Signal recording method for optical disk and apparatus therefor |
| 07/05/1994 | US5327413 Ruggedized homogeneous thin dielectric film focus sensor |
| 07/05/1994 | US5327409 Magneto-optical disc system and magneto-optical disc |
| 07/05/1994 | US5327373 Optoelectronic memories with photoconductive thin films |
| 07/05/1994 | US5326678 Nonionic dye |
| 06/29/1994 | EP0604159A2 Magneto-optical recording apparatus |
| 06/29/1994 | EP0604065A2 Magneto-optical recording medium |
| 06/29/1994 | EP0603842A1 Optical recording device and optical reproduction device |
| 06/29/1994 | EP0603750A1 Target for magneto-optical recording media and method for producing same |
| 06/29/1994 | EP0603670A2 Magnetooptical recording medium, recording and playback method and apparatus for the same |
| 06/29/1994 | EP0544731B1 Optical scanning device |
| 06/29/1994 | EP0294489B1 Optical disc and optical disc unit |
| 06/29/1994 | CN1025255C Disc shape recording medium and apparatus of recording and playing |
| 06/28/1994 | US5325353 Optical recording medium |
| 06/28/1994 | US5325350 Pick-up for selectively reading and writing an optical recording medium having pits and magnetic domains |
| 06/28/1994 | US5325345 Magneto-optical method and apparatus for recording/reproducing data |
| 06/28/1994 | US5325343 Magneto-optical recording medium having two RE-TM layers with the same Curie temperature |
| 06/28/1994 | US5325342 Surface-enhanced raman optical data storage system |
| 06/22/1994 | EP0603171A2 Apparatus and method for recording information on an optical recording medium |
| 06/22/1994 | EP0602966A2 Information recording and/or reproduction apparatus |
| 06/22/1994 | EP0602677A2 Magnet-optical disc drive device |
| 06/22/1994 | EP0602581A2 Recording and reproducing apparatus for data storage and/or audio |
| 06/22/1994 | EP0489112B1 Record holder for a magneto-optical recording and/or playback device |
| 06/22/1994 | EP0485448B1 Magneto-optical recording and/or reproducing device |
| 06/21/1994 | US5323380 Information recording disc and system |
| 06/21/1994 | US5323377 Electrical data recording and retrieval based on impedance variation |
| 06/21/1994 | US5323376 Atomic scale electronic switch |
| 06/21/1994 | US5323374 Method of magneto-optical recording |
| 06/21/1994 | US5323373 Optical pickup device |
| 06/21/1994 | US5323372 Method of optical writing and reading on information carrier with high density storage |
| 06/21/1994 | US5323366 Magneto-optical recording method with switching and maintaining perpendicular magnetization light beam application modes |
| 06/21/1994 | US5323365 Recording method for opto-magnetic disk |
| 06/15/1994 | EP0601862A1 An optical device formed of multiple film layers |
| 06/15/1994 | EP0601856A2 Magneto-optical recording method |
| 06/15/1994 | EP0601567A2 Optical pickup device for magneto-optical recording and reproducing system |
| 06/15/1994 | EP0256110B1 Apparatus and method for increasing storage capacity of recording media |
| 06/14/1994 | US5321686 Read-write head of an magneto-optical disc player with both heads magnetically coupled together |
| 06/14/1994 | US5321682 Method of and device for recording information on a record carrier having a recording layer which, when heated, undergoes an optically detectable change |
| 06/14/1994 | US5321672 Method of an apparatus for magneto-optically recording information by changing the position or shape or controlling the diameter of reversed domains |
| 06/14/1994 | US5320876 Patterns from stamper to uv curable resin on base plate; optical recording media |
| 06/08/1994 | EP0600698A2 Magenetooptical recording medium |
| 06/08/1994 | EP0600623A2 Servo loop control |
| 06/08/1994 | EP0599901A1 Optical scanning device. |
| 06/07/1994 | US5319624 Electromagnetic actuator and optical disk apparatus incorporating the same |
| 06/07/1994 | US5319619 Photomagnetic eraser |
| 06/07/1994 | US5317800 Method of making an integrated magnetooptical read and write head |
| 06/01/1994 | EP0599807A1 Position detector |
| 06/01/1994 | EP0599806A1 Position detector |
| 06/01/1994 | EP0599389A2 Method and recording device for recording signals on a record carrier |
| 06/01/1994 | EP0599387A1 Magneto-optical read/write device |
| 06/01/1994 | CN1024856C Optical disc recording apparatus |
| 06/01/1994 | CN1024855C Method and device for writing and reading information using corrier based on ferroelectric material |
| 05/31/1994 | US5317555 Optical head device utilizing partially overlapping light spots to read information from a readout layer |
| 05/31/1994 | US5317553 Optical disc recording and/or reproducing apparatus having a buffer memory to accommodate track jumps |
| 05/31/1994 | US5317549 Information recording and reproducing apparatus |
| 05/31/1994 | US5317548 Reduced height magnetic bias apparatus for a magnetooptical disk drive including a coil means having a central axis perpendicular to the rotating axis of a rotatable magnet |
| 05/31/1994 | US5317144 Wave front aberration measuring apparatus having means for adjusting position of collimator lens |
| 05/31/1994 | US5316699 Process for the controlled preparation of a composite of ultrafine magnetic particles homogeneously dispersed in a dielectric matrix |
| 05/25/1994 | EP0598524A1 Magnetooptical recording medium |
| 05/25/1994 | EP0598377A2 Magneto-optical recording medium and optical information recording and reading-out method |
| 05/24/1994 | US5315579 Recording disk hub bond |
| 05/24/1994 | US5315577 Optical recording/reproducing by changing perpendicular magnetic anisotropy to non-perpendicular magnetic anisotropy |
| 05/24/1994 | US5315574 Optical head with polarized beam hologram |
| 05/24/1994 | US5315571 Information recording and reproducing device providing faster access time to a recording medium |
| 05/24/1994 | US5315567 Optical disk formatting system using index mark detecting circuit |
| 05/24/1994 | US5314757 Information recording media |
| 05/18/1994 | EP0597656A2 Optical data storage system and method |
| 05/18/1994 | EP0597202A1 Optical pickup head apparatus |