Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7176480 | Light-emitting semiconductor device having a quantum well active layer, and method of fabrication | Koji Ohtsuka, Junji Sato, Tetsuji Moku, Yoshitaka Tanaka | 2007-02-13 |