Issued Patents All Time
Showing 51–63 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661958 | Optical fiber and nonlinear optical fiber, optical amplifier and wavelength converter using the same, and method of making optical fiber | Masaaki Hirano, Masashi Onishi | 2003-12-09 |
| 6611637 | Dispersion-compensating module | Shinji Ishikawa | 2003-08-26 |
| 6603913 | Single-mode optical fiber having multiple cladding regions for dispersion compensation | — | 2003-08-05 |
| 6542677 | Amplification optical fiber and fiber optic amplifier including the same | — | 2003-04-01 |
| 6501892 | Dispersion-compensating fiber | Shinji Ishikawa, Tomonori Kashiwada | 2002-12-31 |
| 6496615 | WDM transmission system | — | 2002-12-17 |
| 6483633 | Raman amplifier | Masashi Onishi | 2002-11-19 |
| 6480312 | Dispersion compensating system used for bi-directional optical communication | Masashi Onishi, Masayuki Nishimura | 2002-11-12 |
| 6453103 | Optical communication system | Motoki Kakui | 2002-09-17 |
| 6404950 | Dispersion-compensating module | Masao Tsukitani, Eisuke Sasaoka, Shigeru Tanaka | 2002-06-11 |
| 6347174 | Non-linear optical fiber, optical fiber coil, and wavelength converter | Masashi Onishi, Shinji Ishikawa, Tomonori Kashiwada, Masayuki Nishimura | 2002-02-12 |
| 6181858 | Dispersion-shifted fiber | Takatoshi Kato, Eisuke Sasaoka | 2001-01-30 |
| 5960146 | Optical fiber and light source apparatus | Masashi Onishi, Masayuki Nishimura, Satoki Kawanishi, Hidehiko Takara, Kunihiko Mori | 1999-09-28 |