Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654209 | Method of making N-type semiconductor region by implantation | — | 1997-08-05 |
| 5641983 | Semiconductor device having a gate electrode having a low dopant concentration | Kazuo Tanaka | 1997-06-24 |