Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6463191 | Optical switching device and optical switching method | Masahiro Ojima, Masaya Horino, Kazutaka Sato | 2002-10-08 |
| 6434286 | Optical signal switching apparatus | Yukio Hayashi, Sunao Kakizaki, Shinichi Kuwano | 2002-08-13 |
| 6424445 | Optical transmission apparatus and optical systems | Shigeki Kitajima, Yasushi Sawada | 2002-07-23 |
| 6341032 | Method and system for reducing optical surge | Yasuyuki Fukashiro, Yukio Hayashi | 2002-01-22 |