Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6721092 | Thulium-doped fiber amplifier using pump light for improving conversion efficiency in a S-band | Hiroji Masuda, Tadashi Sakamoto, Makoto Shimizu, Yoshiki Nishida | 2004-04-13 |