Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6774405 | Light-emitting device | Takemasa Yasukawa, Satoshi Honda, Koji Tsukagoshi, Tsutomu Yokota | 2004-08-10 |
| 6729746 | Light source device | Yoshinobu Suehiro, Yuji Takahashi, Takemasa Yasukawa, Hideaki Kato, Hideyuki Nakano +1 more | 2004-05-04 |