Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6774405 | Light-emitting device | Takemasa Yasukawa, Hideki Omoya, Satoshi Honda, Koji Tsukagoshi | 2004-08-10 |
| 6680490 | Light-emitting device | Takemasa Yasukawa, Akira Mabuchi, Yasuji Ozaki, Kenichi Watanabe, Satoshi Honda | 2004-01-20 |