Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34650 | Communication system for video information apparatus | Keiichiro Shimada, Shinji Takada, Mitsugu Ishihara | 1994-06-28 |
| 4823206 | Video signal recording and/or reproducing apparatus | Shoji Nemoto | 1989-04-18 |
| 4821032 | Communication system for video information apparatus | Keiichiro Shimada, Shinji Takada, Mitsugu Ishihara | 1989-04-11 |
| 4804894 | Motor rotation servo control apparatus | Tadafusa Tomitaka | 1989-02-14 |
| 4713702 | Data communication apparatus | Mitsugu Ishihara | 1987-12-15 |
| 4559501 | Signal translating circuit | Tooru Akutagawa | 1985-12-17 |
| 4551771 | Method and apparatus for recording digital information in alternate recording tracks | Kenji Nakano, Takao Takahashi | 1985-11-05 |
| 4477844 | Apparatus for recording a digital audio signal in a track with a video signal | Kenji Nakano, Kentaro Odaka | 1984-10-16 |
| 4326223 | Video signal recording and/or reproducing apparatus with gain control | Kazuo Yamagiwa | 1982-04-20 |