Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698879 | Nonvolatile semiconductor memory device | Tomoharu Tanaka, Ken Takeuchi | 1997-12-16 |
| 5680347 | Nonvolatile semiconductor memory device | Ken Takeuchi, Koji Sakui, Tomoharu Tanaka | 1997-10-21 |
| 5615165 | Non-volatile semiconductor memory device and memory system using the same | Tomoharu Tanaka, Masaki Momodomi, Hideo Kato, Hiroto Nakai, Yoshiyuki Tanaka +8 more | 1997-03-25 |
| 5602789 | Electrically erasable and programmable non-volatile and multi-level memory systemn with write-verify controller | Tetsuo Endoh, Riichiro Shirota, Kazunori Ohuchi, Ryouhei Kirisawa, Tomoharu Tanaka +1 more | 1997-02-11 |