Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7228040 | Hole-assisted single mode optical fiber | Kazuhide NAKAJIMA, Jian Zhou, Izumi Sankawa, Kazuo Hogari | 2007-06-05 |
| 5303318 | High power acceptable optical fiber and fabrication method thereof | Mitsuhiro Tateda, Masaharu Ohashi, Kazuyuki Shiraki | 1994-04-12 |
| 4913521 | Single-polarization optical fiber | Yutaka Sasaki, Masaharu Ohashi, Makoto Tsubokawa, Nobuo Kuwaki | 1990-04-03 |