Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6947630 | Control method and control apparatus for variable wavelength optical filter | Yutaka Kai, Hideyuki Miyata | 2005-09-20 |
| 6895141 | Control method and device for optical filter, and optical node device | Hideyuki Miyata, Yutaka Kai | 2005-05-17 |