Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804831 | Focus detecting apparatus independent of object image contrast | Yukichi Niwa, Minoru Yoshii, Takako Watanabe | 1989-02-14 |
TB
Takashi Baba
Overall (1989): #53,857 of 140,708Top 40%
1
Patents 1989