Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8009987 | Optical add/drop multiplexer | Yukio Hayashi, Chanthan Winh | 2011-08-30 |
| 7953321 | Optical transmission equipment and optical add-drop multiplexer | Hiroyuki Nakano | 2011-05-31 |