Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696389 | Light-emitting semiconductor device | Masayuki Ishikawa, Hideto Sugawara, Yukie Nishikawa, Masaaki Onomura, Shinji Saito +5 more | 1997-12-09 |
| 5693963 | Compound semiconductor device with nitride | Hidetoshi Fujimoto, Masayuki Ishikawa, Hideto Sugawara, Yoshihiro Kokubun, Masahiro Yamamoto | 1997-12-02 |