Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6639258 | Group III nitride compound semiconductor device | Masayoshi Koike | 2003-10-28 |
| 6617061 | Group III nitride compound semiconductor device and group III nitride compound semiconductor light-emitting device | Masayoshi Koike | 2003-09-09 |
| 6552376 | Group III nitride compound semiconductor device | Masayoshi Koike | 2003-04-22 |
| 6541293 | Semiconductor light-emitting device and manufacturing method thereof | Norikatsu Koide, Shinya Asami, Junichi Umezaki, Masayoshi Koike, Seiji Nagai | 2003-04-01 |
| 6541798 | Group III nitride compound semiconductor device and group III nitride compound semiconductor light-emitting device | Masayoshi Koike | 2003-04-01 |