Issued Patents All Time
Showing 51–61 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6636344 | Raman amplifier, optical repeater, and raman amplification method | Yoshihiro Emori, Shu Namiki | 2003-10-21 |
| 6501593 | Raman amplifier, optical repeater, and raman amplification method | Yoshihiro Emori, Shu Namiki | 2002-12-31 |
| 6292288 | Raman amplifier, optical repeater, and raman amplification method | Yoshihiro Emori, Shu Namiki | 2001-09-18 |
| 6175680 | Dispersion shifted optical fiber | Shinichi Arai, Noritsugu Enomoto, Tamotsu Kamiya | 2001-01-16 |
| 5995694 | Wavelength division multiplex communication link for optical transmission | Ryuichi Sugizaki | 1999-11-30 |
| 5887104 | Dispersion compensating optical fiber | Ryuichi Sugizaki, Tamotsu Kamiya | 1999-03-23 |
| 5854871 | Dispension shift optical fiber and wavelength division multiplex transmission system using the same | — | 1998-12-29 |
| 5848215 | Stimulated brillouin scattering suppressed optical fiber | Masaharu Ohashi | 1998-12-08 |
| 5802235 | Dispersion compensating fiber and its manufacturing method | — | 1998-09-01 |
| 5673354 | Dispersion compensating optical fiber | Ryuichi Sugizaki, Kunio Kokura | 1997-09-30 |
| 5568583 | Dispersion compensating optical fiber for wavelength multiplex transmission and method using same | Ryuichi Sugizaki, Atsushi Umeda, Kunio Kokura | 1996-10-22 |