Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5234859 | LOCOS type field isolating film and semiconductor memory device formed therewith | Tomoharu Mametani, Ichiro Arimoto, Masami Yamamoto | 1993-08-10 |
| 5065218 | Locos type field isolating film and semiconductor memory device formed therewith | Masami Yamamoto, Tomoharu Mametani, Ichiro Arimoto | 1991-11-12 |