Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5362670 | Semiconductor device producing method requiring only two masks for completion of element isolation regions and P- and N-wells | Katsuji Iguchi, Shigeki Hayashida, Akio Kawamura, Shinichi Sato | 1994-11-08 |