Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700084 | Optical source position adjustment device | Manabu Yasukawa, Chiyoharu Horiguchi | 1997-12-23 |
| 5666062 | Voltage measuring using electro-optic material's change in refractive index | Hironori Takahashi, Kazuhiko Wakamori, Akira Takeshima | 1997-09-09 |
| 5631555 | Voltage measurement system | Hironori Takahashi, Akira Takeshima | 1997-05-20 |
| 5614708 | Optical feedback photodetection apparatus | Kouichi Shirakawa, Akira Takeshima | 1997-03-25 |
| 5591962 | Synchronous signal detection apparatus with a photoconductive photodetector | Akira Takeshima, Mitsunori Nishizawa | 1997-01-07 |