Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7085463 | Optical fiber and optical transmission line | Fumio Takahashi, Kazunori Mukasa, Naomi Kumano | 2006-08-01 |
| 7079736 | Optical fiber for WDM system and manufacturing method thereof | Fumio Takahashi, Hideya Moridaira, Masahide Kuwabara, Yoshinori Ishida | 2006-07-18 |