Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6501774 | Optical transmission apparatus for multiple wavelengths and optical transmission wavelength control method | Hiroshi Kuwahara, Norio Nagase, Setsuo Misaizu, Tetsuya Kiyonaga, Tomoyuki Otsuka | 2002-12-31 |
| 6483625 | WDM optical transmission apparatus | Yoshitaka Shimura, Tetsuya Kiyonaga | 2002-11-19 |
| 6417945 | Optical wavelength multiplex transmission method and optical dispersion compensation method | George Ishikawa, Hideyuki Miyata, Hiroshi Onaka, Kazue Okazaki | 2002-07-09 |
| 6411429 | Optical amplifying apparatus, wide-band optical amplifying apparatus, and optical communication system | Hiroaki Tomofuji, Takeshi Sakamoto, Makoto Murakami, Chihiro Ohshima, Yoshihito Onoda | 2002-06-25 |
| 6384943 | Optical wavelength multiplex transmission method and optical dispersion compensation method | George Ishikawa, Hideyuki Miyata, Hiroshi Onaka, Kazue Okazaki | 2002-05-07 |