Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6631149 | Laser diode using group III nitride group compound semiconductor | Masayoshi Koike | 2003-10-07 |
| 6518599 | Light-emitting device using group III nitride group compound semiconductor | Tamiyo Umezaki, Toshio Hiramatsu, Masayoshi Koike | 2003-02-11 |