Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9515450 | Amplifying optical fiber and optical amplifier | Shoichiro Matsuo, Katsuhiro Takenaga, Kentaro Ichii, Hirotaka Ono, Makoto Yamada +1 more | 2016-12-06 |
| 9252556 | Amplifying optical fiber and optical amplifier | Shoichiro Matsuo, Katsuhiro Takenaga, Kentaro Ichii, Hirotaka Ono, Makoto Yamada +1 more | 2016-02-02 |
| 9121995 | Optical fiber having holes | Shoji Tanigawa, Katsuhiro Takenaga, Shoichiro Matsuo, Takashi Matsui, Taiji SAKAMOTO +1 more | 2015-09-01 |