Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6407834 | Optical wave network system and method of monitoring a network trouble | Naoya Henmi | 2002-06-18 |
| 6404525 | Optical add-drop multiplexer | Hirofumi Shimomura, Naoya Henmi | 2002-06-11 |