Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700975 | Semiconductor device | Tetsuo Hikawa, Takashi Sawada, Tom D. Yiu, Ful-Long Ni | 1997-12-23 |
| 5666304 | Semiconductor memory device and method of fabricating the same | Tetsuo Hikawa, Takashi Sawada | 1997-09-09 |
| 5650959 | Memory device having virtual ground line | Tetsuya Hayashi, Kazuhiro Watanabe | 1997-07-22 |
| 5640367 | Semiconductor memory device and method of fabricating the same | Tetsuo Hikawa, Takashi Sawada | 1997-06-17 |