Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7940451 | Wavelength converter and wavelength conversion apparatus | Masaki Asobe, Takeshi Umeki, Osamu Tadanaga, Tsutomu Yanagawa, Katsuaki Magari +1 more | 2011-05-10 |
| 7729585 | Light source apparatus with modulation function and its driving method | Katsuaki Magari, Tsutomu Yanagawa, Hiroyasu Mawatari, Osamu Tadanaga, Masaki Asobe +3 more | 2010-06-01 |
| 7573921 | Laser light source | Junji Yumoto, Osamu Tadanaga, Masaki Asobe, Hiroyuki Suzuki, Kaoru Yoshino +5 more | 2009-08-11 |
| 7391795 | Laser light source | Junji Yumoto, Osamu Tadanaga, Masaki Asobe, Hiroyuki Suzuki, Kaoru Yoshino +5 more | 2008-06-24 |
| 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 |
| 5774620 | Fluoride glass fiber | Terutoshi Kanamori, Tadashi Sakamoto, Yasutake Ohishi, Shoichi Sudo | 1998-06-30 |
| 5486947 | Optical fiber for optical amplifier | Yasutake Ohishi, Terutoshi Kanamori, Atsushi Mori, Shoichi Sudo | 1996-01-23 |
| 5351335 | Optical fiber for optical amplifier | Yasutake Ohishi, Terutoshi Kanamori, Atsushi Mori, Shoichi Sudo | 1994-09-27 |