Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7440167 | Optical fiber for Raman amplification, optical fiber coil, Raman amplifier, and optical communication system | Yuki Taniguchi, Yoshihiro Emori, Atsushi Oguri, Takeshi Yagi | 2008-10-21 |
| 7366386 | Optical fiber and optical interconnection system | Akifumi Sako, Takeshi Yagi | 2008-04-29 |
| 7295741 | Optical fiber, optical fiber ribbon, and optical interconnection system | Akifumi Sako, Takeshi Yagi | 2007-11-13 |
| 7248399 | Optical fiber for Raman amplification, optical fiber coil, Raman amplifier, and optical communication system | Yuki Taniguchi, Yoshihiro Emori, Atsushi Oguri, Takeshi Yagi | 2007-07-24 |
| 7164830 | Nonlinear optical fiber and optical signal processing apparatus using the optical fiber | Jiro Hiroishi, Ryo Miyabe, Naomi Kumano | 2007-01-16 |
| 7126748 | Optical fiber, optical fiber module, and Raman amplifier | Yuki Taniguchi, Takeshi Yagi | 2006-10-24 |
| 7099545 | Single-mode optical fiber | Akifumi Sako, Takeshi Yagi | 2006-08-29 |
| 7046885 | Optical fiber, Raman amplifier, and optical communication system | Takeshi Yagi | 2006-05-16 |
| 7046433 | Optical fiber, and optical module and Raman amplifier using the optical fiber | Takeshi Yagi | 2006-05-16 |
| 7006742 | Highly nonlinear optical fiber and highly nonlinear optical fiber module | Masanori Takahashi, Jiro Hiroishi, Yuki Taniguchi | 2006-02-28 |
| 6778748 | Optical fiber, dispersion compensator using the same, and optical transmission system | Takeshi Yagi | 2004-08-17 |
| 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 |
| 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 |
| 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 |
| 6668121 | Optical fiber, and dispersion compensator using same, optical transmission line using same and optical transmission system using same | Takeshi Yagi | 2003-12-23 |
| 6512872 | Optical fiber, dispersion compensator using optical fiber, optical transmission line using optical fiber, and optical transmission system using optical fiber | Yoshihisa Suzuki | 2003-01-28 |
| 6404967 | Optical fiber and optical transmission line using the same | Shinichi Arai, Keiichi Aiso | 2002-06-11 |
| 5995694 | Wavelength division multiplex communication link for optical transmission | Youichi Akasaka | 1999-11-30 |
| 5933561 | Optical fiber connecting body | — | 1999-08-03 |
| 5887104 | Dispersion compensating optical fiber | Tamotsu Kamiya, Youichi Akasaka | 1999-03-23 |
| 5673354 | Dispersion compensating optical fiber | Youichi Akasaka, Kunio Kokura | 1997-09-30 |
| 5568583 | Dispersion compensating optical fiber for wavelength multiplex transmission and method using same | Youichi Akasaka, Atsushi Umeda, Kunio Kokura | 1996-10-22 |