Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6925222 | Photonic switch | Tsuyoshi Yamamoto | 2005-08-02 |
| 6901222 | Optical transmission system and terminal device applicable to the system | Shinji Yamashita, Kazuyuki Mori | 2005-05-31 |