Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4970601 | Video signal processing apparatus for video tape recorder | — | 1990-11-13 |
| 4821112 | Detection circuit for detecting standard television signals and nonstandard television signals | Toshiyuki Sakamoto, Ikuya Arai, Toshiyuki Kurita, Toshinori Murata, Isao Nakagawa +1 more | 1989-04-11 |
| 4811092 | Movement detector for composite color television signals | Kazuo Ishikura, Shobu Saito, Masato Sugiyama, Kenji Katsumata | 1989-03-07 |
| 4794454 | Movement detection circuit of a video signal used in a television receiver | Masato Sugiyama, Kenji Katsumata, Shigeru Hirahata, Isao Nakagawa, Sunao Suzuki +1 more | 1988-12-27 |
| 4775888 | Motion detector for chrominance signal in TV receiver | Isao Nakagawa, Masato Sugiyama, Kenji Katsumata, Toshinori Murata, Shigeru Hirahata +1 more | 1988-10-04 |
| 4739390 | Television signal processing circuit | Isao Nakagawa, Kazuo Ishikura, Shobu Saito | 1988-04-19 |
| 4736252 | Motion detector for chrominance signal in TV receiver | Isao Nakagawa, Masato Sugiyama, Kenji Katsumata, Toshinori Murata, Shigeru Hirahata +1 more | 1988-04-05 |
| 4688084 | Movement detection circuit for television signals | — | 1987-08-18 |
| 4636857 | Scanning line interpolation circuit for television signal | Kazuo Ishikura | 1987-01-13 |
| 4626891 | Motion detecting circuit utilizing inter-frame difference signals of successive fields | — | 1986-12-02 |
| 4530004 | Color television signal processing circuit | Kazuo Ishikura | 1985-07-16 |
| 4348689 | Phase adjusting system for carrier chrominance signal | — | 1982-09-07 |
| 4296436 | Noise reducing system | — | 1981-10-20 |
| 4295154 | Digital video and audio file system | Hidetoh Hata, Katsumi Haji, Kazushige Sako, Yoji Shibata | 1981-10-13 |