Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7015515 | Group III nitride compound semiconductor device having a superlattice structure | Tetsuya Taki, Makoto Asai, Katsuhisa Sawazaki, Toshiya Uemura | 2006-03-21 |
| 6861663 | Group III nitride compound semiconductor light-emitting device | Katsuhisa Sawazaki, Makoto Asai | 2005-03-01 |
| 6762070 | Method of manufacturing group III nitride compound semiconductor light emitting device having a light emission output of high light intensity | Makoto Asai, Katsuhisa Sawazaki | 2004-07-13 |
| 6452214 | Group III nitride compound semiconductor light-emitting device having a light emission output of high light intensity | Makoto Asai, Katsuhisa Sawazaki | 2002-09-17 |