Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8059966 | Wavelength division multiplex optical regeneration system and wavelength division multiplex optical regeneration method | Koji Igarashi, Shunichi Matsushita, Shu Namiki, Shigehiro Takasaka, Takashi Inoue +1 more | 2011-11-15 |
| 7925132 | Nonlinear optical fiber, nonlinear optical device, and optical signal processing apparatus | Yuki Taniguchi, Masanori Takahashi, Ryuichi Sugizaki | 2011-04-12 |
| 7693377 | Optical fiber module and optical device | Masanori Takahashi, Masateru Tadakuma, Takeshi Yagi | 2010-04-06 |
| 7164830 | Nonlinear optical fiber and optical signal processing apparatus using the optical fiber | Ryo Miyabe, Ryuichi Sugizaki, Naomi Kumano | 2007-01-16 |
| 7113326 | Optical fiber wavelength converter | Masanori Takahashi, Hideaki Tobioka | 2006-09-26 |
| 7085464 | Optical fiber having high nonlinearity | Ryo Miyabe | 2006-08-01 |
| 7006742 | Highly nonlinear optical fiber and highly nonlinear optical fiber module | Masanori Takahashi, Ryuichi Sugizaki, Yuki Taniguchi | 2006-02-28 |
| 6766087 | Nonlinear dispersion-shifted optical fiber, optical signal processing apparatus using said optical fiber and wavelength converter using said optical fiber | Naomi Kumano, Ryuichi Sugizaki | 2004-07-20 |