Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4984474 | Torque sensor | Jun Matsushima, Tetsuto Kageyama, Shigekazu Nakamura | 1991-01-15 |
| 4210393 | Device for automatically controlling diaphragm aperture | Yasuo Ishiguro, Toshihisa Saito | 1980-07-01 |
| 4200375 | Exposure controlling circuit for electric shutter | Yasuo Ishiguro, Toshihisa Saito | 1980-04-29 |
| 4193673 | Digital shutter control circuit | Yasuo Ishiguro, Toshihisa Saito | 1980-03-18 |
| 4192595 | Electroflash controlling circuit including a delay circuit for electrically controlled focal plane shutters | Yasuo Ishiguro, Toshihisa Saito | 1980-03-11 |
| 4190344 | Driving circuit for camera shutters | Yasuo Ishiguro | 1980-02-26 |