Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4357085 | Focus detection device | Yukichi Niwa, Mitsutoshi Owada | 1982-11-02 |
| 4329577 | Focus detecting device with photo-sensor array | Yukichi Niwa, Mitsutoshi Ohwada, Takaaki Yamagata, Shin Tsuda | 1982-05-11 |
| 4315159 | Optical sensor device with reduction of ambient light effects | Yukichi Niwa, Mitsutoshi Owada, Masahiko Ogawa, Shuichi Tamura | 1982-02-09 |