Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6937820 | Optical level control method | Hiroyuki Iwaki | 2005-08-30 |
| 6870666 | Controlling apparatus and controlling method for wavelength division multiplexing optical amplifier | — | 2005-03-22 |