Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6720584 | Nitride type compound semiconductor light emitting element | Toshio Hata, Daigaku Kimura | 2004-04-13 |
| 6555847 | Nitride based semiconductor light emitting element | Toshio Hata, Kensaku Yamamoto, Masaki Tatsumi | 2003-04-29 |