Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5815610 | Optical modulation system | Yuichi Tokano, Takanobu Tanabe, Tsugio Takeda | 1998-09-29 |
| 5670870 | Electric field sensor capable of reliably measuring an electric field intensity of a signal | — | 1997-09-23 |
| 5638468 | Optical modulation system | Yuichi Tokano, Takanobu Tanabe, Tsugio Takeda | 1997-06-10 |