Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6937810 | Amplifying optical fiber, optical fiber amplifier and optical transmission system | Toshimi Suzuki | 2005-08-30 |
| 6729777 | Optical fiber splicing method and optical transmission line | Takatoshi Kato, Keiichiro Fukuda, Noriko Iwata | 2004-05-04 |
| RE38086 | Dispersion compensating fiber and optical transmission system including the same | Masashi Onishi, Hiroo Kanamori, Masayuki Nishimura, Yasushi Koyano | 2003-04-22 |
| 6501892 | Dispersion-compensating fiber | Toshiaki Okuno, Shinji Ishikawa | 2002-12-31 |
| 6347174 | Non-linear optical fiber, optical fiber coil, and wavelength converter | Masashi Onishi, Toshiaki Okuno, Shinji Ishikawa, Masayuki Nishimura | 2002-02-12 |
| 5838867 | Dispersion compensating fiber and optical transmission system including the same | Masashi Onishi, Hiroo Kanamori, Masayuki Nishimura, Yasushi Koyano | 1998-11-17 |
| 5721635 | Optical fiber amplifier and optical amplifier repeater | Masayuki Shigematsu, Koji Nakazato, Masayuki Nishimura | 1998-02-24 |
| 5680491 | Optical fiber dispersion compensation device for optical communication system | Masayuki Shigematsu, Masayuki Nishimura | 1997-10-21 |
| 5640269 | Optical fiber amplifier and optical amplifier repeater | Masayuki Shigematsu, Koji Nakazato, Masayuki Nishimura | 1997-06-17 |
| 5532870 | Optical fiber amplifier and optical amplifier repeater | Masayuki Shigematsu, Koji Nakazato, Masayuki Nishimura | 1996-07-02 |
| 5430822 | Optical communication system including dispersion compensating optical fibers | Masayuki Shigematsu, Masayuki Nishimura | 1995-07-04 |