Issued Patents All Time
Showing 101–117 of 117 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4551771 | Method and apparatus for recording digital information in alternate recording tracks | Yukihiko Machida, Takao Takahashi | 1985-11-05 |
| 4549229 | Method and apparatus for compensating for tape jitter during recording and reproducing of a video signal and PCM audio signal | Hisayoshi Moriwaki, Takao Takahashi | 1985-10-22 |
| 4542419 | Method and apparatus for recording and reproducing an information signal comprising a video signal and audio signal | Minoru Morio, Hisayoshi Moriwaki | 1985-09-17 |
| 4542418 | Method and apparatus for reproducing an information signal comprised of a video signal and audio signal | Shigeyuki Yoneyama, Hisayoshi Moriwaki, Takao Takahashi | 1985-09-17 |
| 4533963 | Video tape recorder for re-recording audio signals | Takao Takahashi, Hisayoshi Moriwaki, Keiichiro Shimada | 1985-08-06 |
| 4509083 | Head tracking control for video tape recorder | — | 1985-04-02 |
| 4506202 | Digital servo circuit | Shigeru Tajima, Hiroshi Okada | 1985-03-19 |
| 4500822 | Digital capstan servo circuit | Shigeru Tajima, Hiroshi Okada | 1985-02-19 |
| 4477844 | Apparatus for recording a digital audio signal in a track with a video signal | Yukihiko Machida, Kentaro Odaka | 1984-10-16 |
| 4459612 | Vertical synchronizing signal detecting circuit | Mitsutoshi Shinkai, Masaaki Sakai, Tadahiko Nakamura | 1984-07-10 |
| 4442461 | Signal recording and/or reproducing technique | Hidemichi Shirai, Hisayoshi Moriwaki | 1984-04-10 |
| 4390908 | Phase servo circuit | Tadahiko Nakamura, Shigeru Tajima | 1983-06-28 |
| 4287458 | Digital servo control circuit | Tadahiko Nakamura | 1981-09-01 |
| 4283671 | Automatic residual phase error compensation circuit for a digital servo control system | Tadahiko Nakamura | 1981-08-11 |
| 4242619 | Digital servo control circuit | Tadahiko Nakamura | 1980-12-30 |
| 4224643 | Automatic tracking servo control system | Tadahiko Nakamura | 1980-09-23 |
| 4210943 | Automatic tracking servo control system | Tadahiko Nakamura | 1980-07-01 |