| 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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| 11/10/1992 | US5163033 Track access control system in rotating disc devices with eccentricity correction |
| 11/10/1992 | US5163032 Magneto-optical recorder with servo control system for a magnetic-field modulation system |
| 11/10/1992 | US5163031 Method of recording tetra-value signal on magneto-optical recording medium with plural magnetic layers |
| 11/10/1992 | US5162819 Information processing apparatus, information processing method, and recording medium employed therefor |
| 11/10/1992 | US5162661 Position detector for maintaining a fixed distance between two objects |
| 11/10/1992 | CA1310121C Apparatus for recording and/or reproducing an optical disc |
| 11/10/1992 | CA1310120C Apparatus for reproducing a magneto-optical disk |
| 11/10/1992 | CA1310113C Magneto-optical recording system |
| 11/05/1992 | DE4138108A1 Magneto=optical recording disc with improved environmental stability - has substrate, non-conducting material layer, recording layer and protective layer, pref. terbium |
| 11/04/1992 | EP0511875A2 Information recording and reproducing apparatus |
| 11/03/1992 | US5161233 Method for recording and reproducing information, apparatus therefor and recording medium |
| 11/03/1992 | US5161137 Optical disk apparatus with a plurality of heads |
| 11/03/1992 | US5161135 Magneto-optical disc memory apparatus including a header signal and magneto-optical signal level adjusting circuit |
| 11/03/1992 | US5161134 Method for increasing linear bit density in magneto-optical storage media |
| 11/03/1992 | US5161133 Magneto-optical storage system |
| 11/03/1992 | US5161132 Magneto-optical recording apparatus including a magnetic head of a pneumatic floating type |
| 11/03/1992 | CA1309770C Magnetooptical recording medium |
| 10/28/1992 | EP0510889A1 Cartridge for accomodating flexible optical disk |
| 10/28/1992 | EP0510758A2 Method of thermomagnetically inscribing and optically reading information |
| 10/28/1992 | EP0510757A2 Erasable magneto-optical recording medium and method of simultaneously erasing existing information and recording new information |
| 10/27/1992 | US5159586 Device for processing optical data |
| 10/27/1992 | US5159584 Bias-Magnetic field generating system of photo-magnetic recording device |
| 10/27/1992 | US5158834 Magneto optic recording medium with silicon carbide dielectric |
| 10/21/1992 | EP0509836A2 Magneto-optical recording medium |
| 10/21/1992 | EP0509555A2 A method of making a magneto-optic memory device |
| 10/21/1992 | EP0509467A1 Magneto-optical recording medium |
| 10/20/1992 | US5157649 Optical pickup device for optical recording/playback apparatus |
| 10/20/1992 | US5157641 Apparatus for generating a magnetic biasing field for recording in a magneto-optical recording medium |
| 10/20/1992 | US5157568 Floating type magnetic head device |
| 10/20/1992 | US5157459 Wave front aberration measuring apparatus |
| 10/20/1992 | CA2066076A1 Cartridge for accommodating flexible optical disk |
| 10/14/1992 | EP0508376A1 Over-write capable magnetooptical recording medium having groove depth of 800 A or less |
| 10/13/1992 | US5155715 Reproducing apparatus |
| 10/13/1992 | US5155714 Interleaving method for interleaved magneto-optic recording of a track |
| 10/13/1992 | US5155622 Polarizing optical element and device using the same |
| 10/13/1992 | CA1308574C Atomic force sensor head |
| 10/07/1992 | EP0507633A2 Curable coating resin composition and information recording medium using the same |
| 10/07/1992 | EP0507515A2 Magneto-optical disk with vibration dampening |
| 10/07/1992 | EP0507242A1 Optical memory |
| 10/06/1992 | US5153873 Optical record carrier and method and apparatus for increasing the resolution of information recorded thereon and read therefrom |
| 10/06/1992 | US5153868 Magneto-optic recording and regenerating device |
| 10/06/1992 | US5153867 Cartridge shutter actuating device in recording and/or reproducing apparatus |
| 10/06/1992 | US5153861 Recording/reproducing device |
| 10/06/1992 | US5153860 Optical pickup apparatus for detecting and correcting focusing and tracking errors in detected recorded signals |
| 10/06/1992 | US5152597 Magneto-optic readout using a polarization-preserving optical fiber |
| 10/06/1992 | CA2065092A1 Curable coating resin composition and information recording medium using the same |
| 10/02/1992 | CA2063002A1 Optical disk with vibration dampening |
| 10/01/1992 | WO1992016933A1 Method for recording code data |
| 09/30/1992 | EP0506382A2 Optical disk substrate, method for initialization thereof and driving apparatus for initialization of said optical disk |
| 09/29/1992 | US5151890 Optical system for optical memory device |
| 09/29/1992 | CA2064314A1 Optical disk substrate, method for initialization thereof and driving apparatus for initialization of said optical disk |
| 09/23/1992 | EP0505253A2 Read out apparatus for reading out information from magneto-optic disk |
| 09/23/1992 | EP0504604A1 Magneto-optical disk head system |
| 09/23/1992 | CN1018398B Information recording media |
| 09/23/1992 | CN1018397B Magnetic-light recording carries |
| 09/23/1992 | CN1018396B Information recording media |
| 09/22/1992 | US5150350 Magneto-optical data recording and reproducing device |
| 09/22/1992 | US5150338 Optical disk reading and writing system having magnetic write head mounted on an air-bearing slider |
| 09/17/1992 | DE4204568A1 Magneto=optical disc with two films for write and read capability - in which film materials have different Curie temperatures and Kerr rotary angles |
| 09/16/1992 | EP0503679A2 Optical card reader |
| 09/16/1992 | EP0503607A2 Magneto-optical recording medium |
| 09/16/1992 | EP0503095A1 Magneto-optical disk drive seek control system |
| 09/16/1992 | EP0502950A1 Process for sputtering multilayers for magneto-optical recording. |
| 09/16/1992 | CN1018304B Magnetooptical recording media |
| 09/15/1992 | US5148422 Optical recording medium having a data recording track with offset data storing regions |
| 09/15/1992 | US5148416 Signal processing circuit for magnetooptical record/reproducing apparatus |
| 09/15/1992 | US5148415 Magneto-optical disc apparatus having head-disc distance control |
| 09/15/1992 | US5148335 Multilevel optical recording arrangement |
| 09/15/1992 | US5147732 Composite magnetic film on a nonmagnetic substrate wherein magnetic thin metal films are coupled so as to have single plane coercivity |
| 09/15/1992 | CA1307376C Magneto-optic substrates and recording method and machine for moldingsuch substrates |
| 09/09/1992 | EP0502699A1 Perpendicular magnetic film and magnetic recording medium |
| 09/09/1992 | EP0502582A1 Information reading system and record carrier and reading device for use in such a system |
| 09/09/1992 | EP0502425A2 Magneto-optical recording medium |
| 09/08/1992 | US5146449 Optical disc apparatus |
| 09/08/1992 | US5146447 Optical/optomagnetic disk apparatus |
| 09/08/1992 | US5146438 Method of making double-sided magneto-optical disks having reduced birefringence |
| 09/03/1992 | WO1992015093A1 Method for reproducing signal in optically recording medium |
| 09/03/1992 | WO1992015092A1 Optically recording medium |
| 09/03/1992 | WO1992015091A1 Optically recording medium |
| 09/02/1992 | EP0501477A2 Information processing apparatus |
| 09/02/1992 | EP0501337A2 Disk recording and/or reproducing apparatus |
| 09/02/1992 | EP0501067A2 Optical recording medium initializing method and apparatus |
| 09/02/1992 | CN1064169A Magnetooptical recording media |
| 09/02/1992 | CN1018103B Method and apparatus for successively recording efm-modulated signals |
| 09/02/1992 | CN1018100B Magnetooptical recording media |
| 09/01/1992 | US5144602 Magneto-optical information recording method and apparatus in which a laser beam oscillates in a track-width direction |
| 09/01/1992 | US5144601 Magneto-optical overwriting methods using erasing pulses, each of which has a higher frequency and narrower width than that of the overwriting pulses |
| 09/01/1992 | US5144333 Local treatment of surfaces of recording layer with solvent to alter absorption spectrum |
| 09/01/1992 | US5143798 Magneto-optical recording medium having double magnetic layers including a light rare earth element and satisfying a specified condition involving the product of the thickness and magnetization saturation of said layers |
| 09/01/1992 | US5143797 Magneto-optic recording medium |
| 09/01/1992 | CA1307048C Apparatus for magneto-optical recording |
| 08/26/1992 | EP0500271A2 Disc cartridge and disc recording and/or reproducing apparatus |
| 08/25/1992 | US5142521 Recording/reproducing device |
| 08/25/1992 | US5142513 Magneto-optical storage medium and magneto-optical overwrite system with magnetic characteristic change by variation of thermal condition for recording information |
| 08/25/1992 | US5142424 Floatable information-reading head support configured to prevent forward pitch |
| 08/20/1992 | WO1992014245A1 Method for reproducing signal in optically recording medium |
| 08/20/1992 | WO1992014244A1 Method for reproducing signal in optically recording medium |
| 08/19/1992 | EP0499413A1 Disc and disc chucking device |
| 08/19/1992 | EP0499278A2 Method for recording sector control information on magneto-optical disk |
| 08/18/1992 | US5140569 Magneto optical recording system with a laser mounted on a slider |