Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804831 | Focus detecting apparatus independent of object image contrast | Takashi Baba, Yukichi Niwa, Minoru Yoshii | 1989-02-14 |
TW
Takako Watanabe
Overall (1989): #52,048 of 140,708Top 40%
1
Patents 1989