Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871906 | Focus detecting device using correlation | Kouichi Ueda, Akihiro Fujiwara, Hirofumi Suda, Masamichi Toyama | 1989-10-03 |
KY
Kunihiko Yamada
Overall (1989): #85,316 of 140,708Top 65%
1
Patents 1989