Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6836349 | Optical performance monitoring device | Tokuyuki Honda, Long Yang | 2004-12-28 |
| 6678445 | Dynamic gain flattening filter | W. John Tomlinson, Yevgeniy Churin, Brian L. Heffner, Long Yang, Jinxi Shen | 2004-01-13 |