Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5940505 | Information recording method and apparatus, function recording method and apparatus, and information reproducing method and apparatus | — | 1999-08-17 |
| 5241399 | Method of recording and reproducing digital and video data relating to a moving picture on and from a two-region recording disk | — | 1993-08-31 |
| 4961116 | Method of, and apparatus for, facilitating sychronization of recorded audio and video information | Tsuyoshi Watanabe | 1990-10-02 |
| 4868679 | Method of recording and reproducing color video signals | — | 1989-09-19 |
| 4864427 | Disk reproducing method and apparatus for disks with different video bandwidths | Hozumi Tanaka | 1989-09-05 |
| 4864428 | Disk player having variable spindle speed for continuous audio in fast and slow reproduction modes | — | 1989-09-05 |
| 4860122 | Device for reproducing a sequence of still pictures with an audio portion and without motion pictures between successive still pictures | — | 1989-08-22 |
| 4858024 | Apparatus for reproducing frequency-division multiplexed video FM and digital audio signals | — | 1989-08-15 |
| 4855978 | Video/compact disk player having reduced track search time | — | 1989-08-08 |
| 4855847 | Video disk reproducing device having improved motor speed control | — | 1989-08-08 |
| 4843484 | Information recording disc with composite index codes and its playback method | Tsuyoshi Watanabe, Takahumi Shiba, Shoichi Katagiri | 1989-06-27 |
| 4839746 | Information reproduction method for complex and CD disks | — | 1989-06-13 |
| 4800446 | Video disk recorded with video and digital data and recording/reproducing apparatus therefor | — | 1989-01-24 |
| 4782402 | Video disk with multiplexed video and digital information | — | 1988-11-01 |
| 4768104 | Video disk recorder and playback unit | — | 1988-08-30 |
| 4736355 | Digital audio data reproduction apparatus | — | 1988-04-05 |
| 4680744 | Disc player having pick-up tilt servo system combined with disc presence detection circuits | — | 1987-07-14 |
| 4665442 | Cross-talk eliminating device in information-carrying disc player | — | 1987-05-12 |
| 4634853 | Optical information reading apparatus | — | 1987-01-06 |
| 4630134 | System for recording and reproducing multiplex information | — | 1986-12-16 |
| 4625304 | Automatic loading disc player | Tadashi Funabashi, Junji Takahashi, Kyoichi Kato | 1986-11-25 |
| 4580779 | Picture information processing system | Tsunetaka Kusumoto | 1986-04-08 |
| 4516160 | Information recording and reproducing system | — | 1985-05-07 |
| 4491877 | Cross-talk detector in information-carrying disc player | — | 1985-01-01 |
| 4476499 | Video disc recording and reproducing system | Toshiyuki Amaya, Kazutoyo Ishiguro, Keiji Masaki | 1984-10-09 |