Issued Patents 2005
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6975811 | Optical one-to-one protection switching apparatus | Sunao Kakizaki, Takashi Mori, Masahiro Takatori, Yukio Hayashi, Shinichi Kuwano | 2005-12-13 |
| 6970614 | Optical switching equipment, optical transport network, and methods of using them | Yasuyuki Fukashiro | 2005-11-29 |
| 6933852 | Optical switching apparatus and optical communication network system | Shigeki Kitajima, Sunao Kakizaki, Yasuyuki Fukashiro | 2005-08-23 |
| 6839480 | Optical switching apparatus, optical transmission system and method of setting up for optical signal route | Sunao Kakizaki, Shigeki Kitajima, Yasuyuki Fukashiro, Takashi Mori | 2005-01-04 |