Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5173447 | Method for producing strained quantum well semiconductor laser elements | Hiroshi Okamoto | 1992-12-22 |
| 5155738 | Semiconductor laser elements | Hiroshi Okamoto | 1992-10-13 |