Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5637886 | Thyristor with improved dv/dt resistance | Katsumi Satoh, Kenichi Honda | 1997-06-10 |
| 5574297 | Gate turnoff thyristor with reduced gate trigger current | Nozomu Sennenbara, Kouji Niinobu, Futoshi Tokunoh | 1996-11-12 |
| 5428229 | Pressure contact type MOS semiconductor device and fabrication method of the same | Futoshi Tokunou | 1995-06-27 |
| 5346859 | Method for fabricating a full press-pack type semiconductor device | — | 1994-09-13 |
| 5345095 | Self arc-extinguishing thyristor and method of manufacturing the same | — | 1994-09-06 |
| 5278434 | Pressure engagement structure for a full press-pack type semiconductor device | — | 1994-01-11 |
| 5121189 | Semiconductor device and method of manufacturing the same | — | 1992-06-09 |
| 4974047 | Light triggered thyristor | — | 1990-11-27 |
| 4881118 | Semiconductor device | Tsutomu Nakagawa, Futoshi Tokunoh, Shigekazu Yoshida | 1989-11-14 |
| 4797727 | Thyristor with aligned trigger guide | — | 1989-01-10 |
| 4790620 | Optical coupling device for a photo-semiconductor element and an optical fiber | — | 1988-12-13 |