Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4601563 | Motor driven focal length changing device for a camera | Makoto Miyawaki, Michio Hirohata, Yukio Ogawa | 1986-07-22 |
| 4536068 | Focal length changeable camera | — | 1985-08-20 |
| 4505567 | Electromagnetically driven shutter with focus adjusting function | Michio Hirohata | 1985-03-19 |