Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359634 | Automatic focusing device | Shinji Nagaoka, Yuzuru Takazawa, Takashi Segawa | 1982-11-16 |
| 4331399 | Focal point coincidence sensing device | Kiyoshi Kitai | 1982-05-25 |
| 4316085 | Automatic focusing adjustor device | Hiroaki Ishida, Takashi Segawa, Shinji Nagaoka, Yuzuru Takazawa | 1982-02-16 |