Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4548495 | Proper focusing state detecting device | — | 1985-10-22 |
| 4547676 | Photosensor apparatus with light integration control | Kenzo Ishibashi, Isamu Hashimoto | 1985-10-15 |
| 4531054 | Wavefront light beam splitter | — | 1985-07-23 |
| 4491402 | Method of focus detection | — | 1985-01-01 |
| 4485303 | Focus detection with splitter lens | — | 1984-11-27 |
| 4316657 | Apparatus for electrically detecting focal point of cameras or the like optical devices | Masatoshi Ida, Hideyuki Kenjyo | 1982-02-23 |
| 4314151 | Focus detection by accumulation of a given number of the largest absolute difference magnitudes between adjacent photocells in an array | Masahiro Aoki | 1982-02-02 |
| 4255654 | Method of electrically detecting focal point of cameras or the like optical devices | Kenichi Oinoue, Masahiro Aoki, Hideyuki Kenjyo, Masatoshi Ida | 1981-03-10 |