Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7466478 | Optical-level control method, optical-level control apparatus and wavelength-multiplexing optical network | Takuji Maeda, Haruki Tanaka, Hisayuki Ojima, Hiroaki Tomofuji, Hideaki Sugiya | 2008-12-16 |