Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638468 | Optical modulation system | Ryoji Muramatsu, Takanobu Tanabe, Tsugio Takeda | 1997-06-10 |
| 5625284 | Electric field sensor having sensor head with unbalanced electric field shield to shield branched optical waveguides against an applied electric field | — | 1997-04-29 |