Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6809846 | Optical switch and optical network | Hirofumi Shimomura | 2004-10-26 |
| 6771907 | Optical ring system | Yuuki Yoshifuji, Shuichi Iida, Takashi Yamazaki, Youko Nakabayashi, Shinya Nakamura +9 more | 2004-08-03 |
| 6760552 | Optical receiving circuit and optical communication device | Akio Tajima, Hiroaki Takahashi, Soichiro Araki, Yoshihiko Suemura, Yoshiharu Maeno +1 more | 2004-07-06 |