Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5094976 | Dopant film and methods of diffusing impurity into and manufacturing a semiconductor wafer | Masaburo Iwabuchi, Hideyoshi Ito | 1992-03-10 |
| 5073517 | Dopant film and methods of diffusing impurity into and manufacturing a semiconductor wafer | Masaburo Iwabuchi, Hideyoshi Ito | 1991-12-17 |
| 5038200 | Resin insulated type semiconductor device | Sadaki Hosomi, Yoshiaki Tatumi | 1991-08-06 |