Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689358 | Optical functional devices and integrated optical devices having a ridged multi-quantum well structure | Masashi Nakao, Yasuhiro Suzuki, Kazuo Kasaya, Junichi Nakano, Kiyoyuki Yokoyama | 1997-11-18 |