Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6455877 | III-N compound semiconductor device | Atsushi Ogawa, Takayuki Yuasa, Yuhzoh Tsuda, Masahiro Araki, Mototaka Taneya | 2002-09-24 |
| 6380051 | Layered structure including a nitride compound semiconductor film and method for making the same | Takayuki Yuasa | 2002-04-30 |
| 6252255 | Crystal growth method for nitride semiconductor, nitride light emitting device, and method for producing the same | Takayuki Yuasa | 2001-06-26 |
| 5995527 | Semiconductor laser device having an inn contact layer and a method of fabricating the same | Kazuhiko Inoguchi, Takayuki Yuasa | 1999-11-30 |