Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829273 | Nitride semiconductor layer structure and a nitride semiconductor laser incorporating a portion of same | Hiroshi Amano, Isamu Akasaki, Norihide Yamada, Tetsuya Takeuchi, Satoshi Watanabe | 2004-12-07 |
| 6696223 | Method for performing photolithography | Tetsuya Hidaka | 2004-02-24 |
| 6690700 | Nitride semiconductor device | Tetsuya Takeuchi, Norihide Yamada, Hiroshi Amano, Isamu Akasaki | 2004-02-10 |