Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699294 | Semiconductor memory device having bidirectional potential barrier switching element | Takashi Yamada | 1997-12-16 |
| 5636158 | Irregular pitch layout for a semiconductor memory device | Daisuke Kato | 1997-06-03 |