Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4196989 | TTL Metering system automatic exposure control camera | Kenji Toyoda, Sakuji Watanabe | 1980-04-08 |
| 4194820 | Spring servo type aperture control device in a camera | Yoshiyuki Nakano, Akihiko Sato | 1980-03-25 |
| 4192598 | Mirror driving device for use in a single lens reflex camera | Akihiko Sato | 1980-03-11 |