Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4346350 | FET Quartz oscillators | Ryoji Iwakura | 1982-08-24 |
| 4337529 | Pace timing device | — | 1982-06-29 |
| 4302829 | Electronic timepiece | Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura, Keiichiro Koga | 1981-11-24 |
| 4302828 | Electronic timepiece | Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura, Keiichiro Koga | 1981-11-24 |
| 4300137 | Matrix driving method for electro-optical display device | Hiroo Fujita, Akira Tsuzuki | 1981-11-10 |
| 4298971 | Electronic timpiece | Keiichiro Koga | 1981-11-03 |
| 4292680 | Electronic timepiece | Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura, Keiichiro Koga | 1981-09-29 |
| 4270194 | Electronic alarm timepiece | Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura, Keiichiro Koga | 1981-05-26 |
| RE30588 | Electric timepiece for displaying the operating condition thereof | Munetaka Tamaru, Kazunari Kume, Hideshi Oono, Minoru Watanabe, Hideo Sato | 1981-04-21 |
| 4262351 | Electronic timepiece | Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura, Keiichiro Koga | 1981-04-14 |
| 4259715 | Voltage conversion system for electronic timepiece | — | 1981-03-31 |
| 4236241 | Electronic timepiece | Fukuo Sekiya, Yukio Hashimoto, Yasushi Nomura, Keiichiro Koga | 1980-11-25 |
| 4234945 | Electronic timepiece with hourly strike mechanism | Yasushi Nomura, Yuzo Komatsu | 1980-11-18 |
| 4232510 | Timepiece | Munetaka Tamaru, Akira Tsuzuki, Minoru Watanabe, Kazunari Kume, Hideshi Oono | 1980-11-11 |
| 4205518 | Voltage conversion system for electronic timepiece | — | 1980-06-03 |
| 4199699 | Motor and drive for a timepiece | Kazunari Kume, Minoru Watanabe, Hideshi Ohno, Munetaka Tamaru, Takayasu Machida +1 more | 1980-04-22 |