Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8867042 | Method for evaluating characteristic of optical modulator having mach-zehnder interferometer | Tetsuya Kawanishi, Junichiro Ichikawa, Masaaki Sudo | 2014-10-21 |
| 8676060 | Quadrature amplitude modulation signal generating device | Tetsuya Kawanishi, Takahide Sakamoto, Masahiro Tsuchiya | 2014-03-18 |