Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6771904 | Optical transmission system and optical channel available quality measuring method | Akira Sasaki, Shigeru Shikii, Naomi Oohashi, Katsuhiro Ishimura | 2004-08-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6771904 | Optical transmission system and optical channel available quality measuring method | Akira Sasaki, Shigeru Shikii, Naomi Oohashi, Katsuhiro Ishimura | 2004-08-03 |