| 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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| 04/16/1997 | EP0768654A2 Sliding-type magnetic head for magnetooptical recording |
| 04/16/1997 | EP0705475B1 Recording system with magneto-optic layers, magneto-optic recording system and writing process |
| 04/15/1997 | US5621715 Optical integrated circuit |
| 04/15/1997 | US5621714 Optical pick-up apparatus having hologram and beam splitter with birefringent member and polarizing film |
| 04/15/1997 | US5621712 Reproducing system for an optical recording medium having improved response to a high speed scanning instruction |
| 04/15/1997 | US5621706 Method and apparatus for magnetic super-resolution recording |
| 04/15/1997 | US5621576 Optical head for optical memory disk recording device with elastic support in a direction parallel to a recording surface |
| 04/15/1997 | US5620792 Magneto-optic recording medium having constant reflectance over a range of wavelengths |
| 04/15/1997 | US5620767 Light reflecting and heat dissipating material and optical information recording medium using the same |
| 04/15/1997 | US5620766 Magneto-optical disk |
| 04/15/1997 | CA2075518C Optical memory |
| 04/09/1997 | EP0767457A2 Magneto-optical recording device |
| 04/09/1997 | EP0766863A1 Method for reading information |
| 04/09/1997 | CN1147130A Disc drive unit |
| 04/08/1997 | US5619483 Method of recording on a recording medium employing an automatic termination of recording by monitoring the signal being recorded |
| 04/08/1997 | US5619482 Optical head unit for an optical disk using a diffraction grating |
| 04/08/1997 | US5619479 Translational bias-field device for a magneto-optical system |
| 04/08/1997 | US5619035 System for analyzing surfaces of samples |
| 04/08/1997 | US5618638 Optical magnetic recording medium |
| 04/08/1997 | US5618617 Magneto-optic disk |
| 04/08/1997 | CA2100636C Optical information reproducing device |
| 04/02/1997 | CN1146810A Convex ultra-fine particle surface structure |
| 04/02/1997 | CN1146591A Optical information recording medium and optical information record/regeneration apparatus |
| 04/01/1997 | US5617406 Optical disc with heat blocking bands between tracks |
| 04/01/1997 | US5617405 Optical recording medium having at least two separate recording layers of different writing temperatures |
| 04/01/1997 | US5617404 Magneto-optic disk apparatus provided with a holder having a claw catching and bending an elastic member |
| 04/01/1997 | US5617403 Optical pickup |
| 04/01/1997 | US5617401 Calibration of lasers that produce multiple power output levels of emitted radiation |
| 04/01/1997 | US5617400 Magneto-optical recording and reproducing apparatus with layer aperture control |
| 04/01/1997 | US5617399 Write intensity calibration of a recording beam by reading a test pattern written on a buffer sector of a record carrier |
| 04/01/1997 | US5617398 In-line optical pickup using Wollaston Prism and collimating lens directing polarized light components to detectors |
| 04/01/1997 | US5617393 Optical disk having an erased-state indicator and optical disk apparatus for reducing frequency of disk erasing operation |
| 04/01/1997 | US5617391 Optical recording and reproducing system |
| 04/01/1997 | US5617387 Optical system for optical information recording/reproducing apparatus |
| 04/01/1997 | US5617380 Apparatus and method for drive management for multi-pass storage devices |
| 04/01/1997 | US5617379 Magneto-optical disk apparatus utilizing a leakage magnetic field from a magnetic driving mechanism |
| 04/01/1997 | US5617378 Magneto-optical disc system having an objective lens with a numerical aperture related to the thickness of the protective layer |
| 04/01/1997 | US5616428 Magnetooptical recording medium and information recording and reproducing methods using the recording medium |
| 04/01/1997 | CA2037428C Reproducing optical device for a magneto-optical recording medium |
| 03/27/1997 | DE19634974A1 Preßform und unter ihrer Verwendung geformtes Glassubstrat für einen Computerspeicher Compression mold and molded using them glass substrate for a computer memory |
| 03/26/1997 | EP0764323A2 Optical information recording medium, manufacturing method therefor, manufacturing apparatus therefor, and optical information recording and reproducing apparatus |
| 03/26/1997 | CN1146049A Optical memory device |
| 03/26/1997 | CN1146044A Data recording medium |
| 03/26/1997 | CN1146043A Bi-level optical media having embossed header format |
| 03/26/1997 | CN1146042A Optical head |
| 03/26/1997 | CN1146041A Optical pickup using vertical cavity surface-emitting laser diode |
| 03/26/1997 | CN1146037A Magneto-optical disk drive supporting direct-over-write operation and write-after-erase operation |
| 03/25/1997 | US5615205 Bi-level optical media having embossed header format |
| 03/25/1997 | US5615192 Information recording and reproducing method and apparatus |
| 03/25/1997 | US5615186 Optical data storage system |
| 03/25/1997 | US5615185 Optical disk recording and reproducing apparatus with data recorded and reproducing apparatus with data recorded on wobbled grooves and lands |
| 03/25/1997 | US5615183 Magnetic head used in magnetooptical recording |
| 03/25/1997 | US5615182 Magneto-optical disk and the reproducing method thereof |
| 03/25/1997 | US5615181 Optical read/write head with low angle beam splitter and coplanar detectors |
| 03/25/1997 | US5615180 Magneto-optical recording medium and magneto-optical recording apparatus capable of performing a light-modulation overwriting operation |
| 03/25/1997 | US5615143 Optomechanical terabit data storage system |
| 03/25/1997 | US5614287 Magneto-optical recording medium comprising a specified substrate |
| 03/25/1997 | US5614279 Recording and reproducing medium and a recording and reproducing apparatus |
| 03/19/1997 | CN1145514A Information recording method, reproducing method, and reproducing apparatus |
| 03/18/1997 | US5612133 Magneto-optical recording medium having a refelecting layer of a silver-magnesium alloy having a magnesium oxide coating |
| 03/18/1997 | US5612131 Multilayer magnetic recording material with iron, cobalt, nickel and alloys with alloys, oxides, sulfides with transition or rare earth metals in matrix |
| 03/18/1997 | US5612109 Storage medium with radiation transparent dielectric seed layer and transmissive recording layer with multilayer structures of cobalt and platinum |
| 03/18/1997 | US5612108 Multilayer optical recording material with aluminum substrates and titanium undercoatings |
| 03/18/1997 | CA2073539C Magnetic field modulation magnet-optical recording apparatus in which an fm modulator and a magnetic head driving circuit are used in common |
| 03/18/1997 | CA2073311C Magneto-optical recording medium whereon recording is carried out with an overwriting function |
| 03/13/1997 | WO1997009715A1 Data carrier, layer forming method and systems therefor |
| 03/12/1997 | EP0762413A1 Magneto-optical media |
| 03/12/1997 | EP0762412A1 Optical storage medium including multiple data levels made of Co/Pt magneto-optical recording media |
| 03/12/1997 | EP0762411A1 Forming a high performance Co/Pt disk |
| 03/12/1997 | EP0762410A1 Magnetooptical recording medium, and method and apparatus for recording/reproduction |
| 03/12/1997 | EP0762406A1 Information carrier, manufacturing method for a layer and apparatus therefor |
| 03/12/1997 | EP0762400A1 Optical information recording and/or reproducing apparatus and method |
| 03/12/1997 | EP0762399A1 Optical data recording/reproducing method and apparatus |
| 03/12/1997 | CN1144951A Magnetic head and magnetic head device |
| 03/11/1997 | US5610901 Multiple data surface optical data storage system |
| 03/11/1997 | US5610898 Information recording/reproducing method for recording and/or reproducing information on information recording carrier by use of probe electrode |
| 03/11/1997 | US5610897 Optical information reproducing apparatus |
| 03/11/1997 | US5610895 Optical head having light blocking means positioned in front of a detector for super-resolution detection |
| 03/11/1997 | US5610890 Cartridge inserting/extracting apparatus for a magnetooptical disk player |
| 03/11/1997 | US5610888 Optical disc dubbing apparatus having automatic track number assignment |
| 03/11/1997 | US5610880 Optical disc system and optical disk therefor |
| 03/11/1997 | US5610853 Ferroelectric material, and semiconductor memory, optical recording medium and micro-displacement control device using the ferroelectric material |
| 03/11/1997 | US5610405 Electronic device for measuring light properties |
| 03/11/1997 | US5609990 Cured composition of radiation-curable component, nonionic perfluoro surfactant, radiation-curable silicone-containing compound |
| 03/06/1997 | DE19531802A1 Scanning near field optical microscope |
| 03/05/1997 | EP0760509A1 Disk apparatus and disk access method |
| 03/05/1997 | CN1144372A Optical information recording medium |
| 03/05/1997 | CN1034197C Zoned record carrier |
| 03/04/1997 | US5608715 Multi-layered recording disk and recording/reproducing system using the same |
| 03/04/1997 | US5608709 Beam splitter arrangement for magneto-optical recording device |
| 03/04/1997 | US5608701 Method of and article for masking data on a storage medium |
| 03/04/1997 | US5608666 Optical memory apparatus using first and second illuminating lights for writing and reading |
| 03/04/1997 | US5608233 Optical device for magneto-optical disc system |
| 03/04/1997 | US5607781 Oxide film with preferred crystal orientation, method of manufacturing the same, and magneto-optical recording medium |
| 03/04/1997 | US5607780 Target for magneto-optical recording medium and process for production thereof |
| 03/04/1997 | US5607739 Temperature sensor and method for optical disk |
| 03/04/1997 | CA2073924C Magneto-optical recording method using a magneto-optical recording medium having two or more magnetic layers to allow recording and reproduction to be effected simultaneously and magneto-optical recording medium used in the method |
| 02/26/1997 | EP0759613A1 Recording/reproduction apparatus |
| 02/26/1997 | CN1144002A Optical unit for optically scanning and information surface, and optical scanning arrangement including optical unit |
| 02/25/1997 | US5606546 Optical data storage medium with multiple writable data layers separated by dieletric layers |