Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810076 | Selective shading device and an optical device using the same | Yoshiharu Yamamoto, Kenichi Ikeda, Yoshitomi Nagaoka, Yasuo Nakajima | 1989-03-07 |
TM
Tsugio Murao
Overall (1989): #47,450 of 140,708Top 35%
1
Patents 1989