Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887026 | Voltage detector for detecting a voltage developing in a selected area of an object | Yutaka Tsuchiya, Shinichiro Aoshima | 1989-12-12 |
| 4866372 | Voltage detector having compensation for polarization change caused by spontaneous birefringence | Shinichiro Aoshima, Yutaka Tsuchiya | 1989-09-12 |