Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4351894 | Method of manufacturing a semiconductor device using silicon carbide mask | Takashi Ajima, Shunichi Hiraki, Yutaka Koshino, Yoshitami Oka | 1982-09-28 |
| 4334349 | Method of producing semiconductor device | Masaharu Aoyama, Jiro Ohshima | 1982-06-15 |