Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7889331 | Bidirectional optical module and optical time domain reflectometer equipped with the bidirectional optical module | Katsushi Oota, Haruo Shibuya, Yasuhiko Muramatsu, Shunji Sakai | 2011-02-15 |