Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5170159 | Sleep timer for audio/visual apparatus and method of sleep timer operation | Yoshihiro Kawabata, Takehiko Kuroiwa, Kazuya Tsukada, Shinji Sugiyama, Naoyuki Arai | 1992-12-08 |
| 4540951 | Amplifier circuit | Akio Ozawa, Susumu Sueyoshi, Keishi Sato, Kiyomi Yatsuhashi, Satoshi Ishii +1 more | 1985-09-10 |
| 4433305 | Amplifier circuit | Akio Ozawa, Susumu Sueyoshi, Keishi Sato, Kiyomi Yatsuhashi, Satoshi Ishii +1 more | 1984-02-21 |
| 4420725 | Wide-bandwidth low-distortion amplifier | Susumu Sueyoshi | 1983-12-13 |
| 4356454 | Equalizer amplifier | Susumu Sueyoshi | 1982-10-26 |
| 4356455 | Amplifier | Akio Ozawa, Susumu Sueyoshi, Keishi Saito, Kiyomi Yatsuhashi, Satoshi Ishii +1 more | 1982-10-26 |