Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4837458 | Flip-flop circuit | Sigeyuki Kawahata | 1989-06-06 |
| 4794441 | Semiconductor switch circuit | Junjiro Kitano, Tadakatsu Kimura, Yasunobu Inabe, Masa-aki Tanabe | 1988-12-27 |
| 4553125 | High voltage resistance element | — | 1985-11-12 |
| 4419685 | Semiconductor device | Tatsuya Kamei, Tetsuma Sakurai | 1983-12-06 |
| 4286280 | Semiconductor integrated circuit device | — | 1981-08-25 |
| 4216487 | Bidirectional light-activated thyristor having substrate optical isolation | Nobutake Konishi, Takeshi Yokota, Tsutomu Yatsuo, Masahiro Okamura | 1980-08-05 |
| 4212024 | Solid-state switching circuit employing photon coupling suitable for construction in form of integrated circuit | Tatsuya Kamei | 1980-07-08 |