Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817109 | External resonator type semiconductor laser apparatus | Osamu Yamamoto, Hiroshi Hayashi, Saburo Yamamoto, Shigeki Maei | 1989-03-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817109 | External resonator type semiconductor laser apparatus | Osamu Yamamoto, Hiroshi Hayashi, Saburo Yamamoto, Shigeki Maei | 1989-03-28 |