Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4542398 | Semiconductor devices of multi-emitter type | Masayoshi Naito, Takahiro Nagano, Tomio Yasuda, Jin Onuki, Mitsuo Yanagi +1 more | 1985-09-17 |
| 4500903 | Semiconductor GTO switching device with radially elongated cathode emitter regions of increasing length | Takahiro Nagano, Saburo Oikawa, Akira Horie | 1985-02-19 |
| 4443810 | Gate turn-off amplified thyristor with non-shorted auxiliary anode | Takahiro Nagano | 1984-04-17 |
| 4404580 | Light activated semiconductor device | Nobutake Konishi, Masayoshi Naito, Yoshio Terasawa | 1983-09-13 |
| 4388635 | High breakdown voltage semiconductor device | Atsuo Watanabe, Masayoshi Naito, Masahiro Okamura | 1983-06-14 |
| 4240091 | Semiconductor controlled rectifier device with small area dV/dt self-protecting means | Atsuo Watanabe, Yoshiteru Shimizu | 1980-12-16 |
| 4216487 | Bidirectional light-activated thyristor having substrate optical isolation | Nobutake Konishi, Takeshi Yokota, Yoshitaka Sugawara, Masahiro Okamura | 1980-08-05 |