Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5094976 | Dopant film and methods of diffusing impurity into and manufacturing a semiconductor wafer | Masaburo Iwabuchi, Kenji Unetsubo | 1992-03-10 |
| 5073517 | Dopant film and methods of diffusing impurity into and manufacturing a semiconductor wafer | Masaburo Iwabuchi, Kenji Unetsubo | 1991-12-17 |