Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698880 | Semiconductor device having a groove with a curved part formed on its side surface | Shigeki Takahashi, Tsuyoshi Yamamoto, Yuuichi Takeuchi, Norihito Tokura | 1997-12-16 |