Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6607595 | Method for producing a light-emitting semiconductor device | Katsuhide Manabe, Akira Mabuchi, Hisaki Kato, Michinari Sassa, Norikatsu Koide +2 more | 2003-08-19 |
| 6593599 | Light-emitting semiconductor device using gallium nitride group compound | Katsuhide Manabe, Akira Mabuchi, Hisaki Kato, Michinari Sassa, Norikatsu Koide +2 more | 2003-07-15 |
| 6569704 | Group III-V semiconductor light emitting devices with reduced piezoelectric fields and increased efficiency | Tetsuya Takeuchi, Norihide Yamada, Hiroshi Amano | 2003-05-27 |
| 6537513 | Semiconductor substrate and method for making the same | Hiroshi Amano, Tetsuya Takeuchi | 2003-03-25 |
| 6534791 | Epitaxial aluminium-gallium nitride semiconductor substrate | Nobuaki Hayashi, Tetsuya Takeuchi, Hiroshi Amano | 2003-03-18 |