Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5641976 | Pressure contact type semiconductor device with axial bias and radial restraint between a distortion buffer plate and a semiconductor body | Kyoutaro Hirasawa, Yuzuru Konishi | 1997-06-24 |
| 5621237 | Semiconductor device | Yuzuru Konishi, Kyotaro Hirasawa | 1997-04-15 |
| 5596210 | Light trigger type semiconductor device with reflection prevention film | Yuzuru Konishi, Kyotaro Hirasawa | 1997-01-21 |