Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670796 | Semiconductor device consisting of a semiconductor material having a deep impurity level | Yoshiki Nishibayashi, Shin-ichi Shikata, Naoji Fujimori | 1997-09-23 |
| 5634523 | Blade device | Haruo Tomozaki | 1997-06-03 |
| 5602950 | Optical star coupler | Tetsuya Saitoh, Hideo Shimizu | 1997-02-11 |