Issued Patents 2004
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6813065 | Raman amplifier and optical communication system | Tetsufumi Tsuzaki, Motoki Kakui, Masashi Onishi | 2004-11-02 |
| 6805497 | Optical transmission line | Motonori Nakamura, Masao Tsukitani, Eisuke Sasaoka | 2004-10-19 |
| 6788874 | Optical component | Masakazu Shigehara | 2004-09-07 |
| 6785444 | Optical fiber grating device | Masakazu Shigehara, Michiko Takushima, Tadashi Enomoto | 2004-08-31 |
| 6771415 | Optical fiber for optical amplifier and fiber optic amplifier | Shinji Endo, Motoki Kakui | 2004-08-03 |
| 6728458 | Optical fiber and fiber grating device | Toshiki Taru, Akira Inoue | 2004-04-27 |
| 6687439 | Light-amplifying optical fiber and method of making the same | Shinji Endo, Motoki Kakui, Toshimi Suzuki | 2004-02-03 |