Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650641 | Semiconductor device having group III nitride compound and enabling control of emission color, and flat display comprising such device | Michinari Sassa, Masayoshi Koike, Norikatsu Koide, Hisaki Kato, Naoki Shibata +2 more | 1997-07-22 |
| 5620557 | Sapphireless group III nitride semiconductor and method for making same | Masayoshi Koike, Hisaki Kato, Norikatsu Koide, Isamu Akasaki, Hiroshi Amano | 1997-04-15 |