Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6411429 | Optical amplifying apparatus, wide-band optical amplifying apparatus, and optical communication system | Hiroaki Tomofuji, Motoyoshi Sekiya, Takeshi Sakamoto, Chihiro Ohshima, Yoshihito Onoda | 2002-06-25 |