Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6806986 | Wavelength converter and wavelength converting apparatus | Masaki Asobe, Osamu Tadanaga, Hiroshi Miyazawa, Hiroyuki Suzuki | 2004-10-19 |
| 6721092 | Thulium-doped fiber amplifier using pump light for improving conversion efficiency in a S-band | Shinichi Aozasa, Hiroji Masuda, Tadashi Sakamoto, Makoto Shimizu | 2004-04-13 |