Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8829890 | Optical voltage sensor | Masao Takahashi, Junichi Sato, Tokihiro Umemura, Tsuyoshi Kuwabara | 2014-09-09 |
| 8319958 | Phase modulator, phase modulator assembly, and photosensor | Kinichi Sasaki, Masao Takahashi, Masahiro Hamaguchi, Tsuyoshi Kuwabara, Tokihiro Umemura | 2012-11-27 |