Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6570703 | Optical amplifying apparatus, optical amplifying method, and optical communication system | Makoto Murakami, Motoyoshi Sekiya, Hiroaki Tomofuji, Takeshi Sakamoto, Kazuo Yamane | 2003-05-27 |