Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5627488 | Delay circuit, oscillation circuit and semiconductor memory device | Tomoharu Tanaka, Toshio Yamamura, Koji Sakui | 1997-05-06 |
| 5621682 | Memory system | Tomoharu Tanaka | 1997-04-15 |