Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696614 | Optical wavelength multiplex transmission method and optical dispersion compensation method | George Ishikawa, Hiroshi Onaka, Motoyoshi Sekiya, Kazue Otsuka | 1997-12-09 |
| 5696859 | Optical-filter array, optical transmitter and optical transmission system | Hiroshi Onaka, Nobuhiro Fukushima | 1997-12-09 |
| 5636046 | Optical dispersion compensation method using transmissible band determined from synergetic effect of self phase modulation and group velocity dispersion | George Ishikawa, Hiroshi Onaka, Motoyoshi Sekiya, Kazue Otsuka | 1997-06-03 |
| 5612807 | Optical dispersion compensation method for shifting a zero dispersion wavelength of an optical fiber to compensate for dispersion in an optical system | George Ishikawa, Hiroshi Onaka, Motoyoshi Sekiya, Kazue Otsuka | 1997-03-18 |
| 5602666 | Optical dispersion compensation method for shifting a zero dispersion wavelength of an optical fiber to compensate for dispersion in an optical system | George Ishikawa, Hiroshi Onaka, Motoyoshi Sekiya, Kazue Otsuka | 1997-02-11 |