Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6825363 | Compounds useful in optical switching and manufacturing method thereof | Minquan Tian, Makoto Furuki, Lyong-Sun Pu, Yasuhiro Sato, Izumi Iwasa | 2004-11-30 |
| 6806996 | Optical switching system | Makoto Furuki, Izumi Iwasa, Yasuhiro Sato, Minquan Tian, Lyong-Sun Pu | 2004-10-19 |
| 6693736 | Optical circuit system and components of same | Tetsuzo Yoshimura, Takeshi Ishitsuka, Katsusada Motoyoshi, Wataru Sotoyama, Koji Tsukamoto +3 more | 2004-02-17 |