Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6778748 | Optical fiber, dispersion compensator using the same, and optical transmission system | Takeshi Yagi | 2004-08-17 |
| 6766087 | Nonlinear dispersion-shifted optical fiber, optical signal processing apparatus using said optical fiber and wavelength converter using said optical fiber | Jiro Hiroishi, Naomi Kumano | 2004-07-20 |
| 6766089 | Low-dispersion optical fiber and optical transmission system using the low-dispersion optical fiber | Shinichi Arai, Keiichi Aiso, Naoto Oyama, Jun Terada, Hisashi Koaizawa +1 more | 2004-07-20 |
| 6684018 | Low-dispersion optical fiber and optical transmission system using the low-dispersion optical fiber | Shinichi Arai, Keiichi Aiso, Naoto Oyama, Jun Terada, Hisashi Koaizawa +1 more | 2004-01-27 |