Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4975569 | Optical rotary encoder employing plural photosensors disposed in a specific arrangement | Koyoshi Ebina, Sadaaki Fujii | 1990-12-04 |
| 4692025 | Semiconductor color sensor detection circuit | Yoshifumi Masuda, Toshihide Miyake | 1987-09-08 |
| 4689540 | Position control in a D.C. motor | Kenji Hachimura, Noboru Kawai | 1987-08-25 |
| 4654525 | Optical rotary encoder | Kiyoshi Ebina, Kazuhira Nakao | 1987-03-31 |
| 4620094 | Photoelectric encoder | Kiyoshi Ebina, Osamu Ichikawa, Mamoru Imaizumi | 1986-10-28 |
| 4614874 | Original document size detecting arrangement | Hiroaki Fukuda, Kenji Sumiyoshi, Ryoichi Masaki | 1986-09-30 |
| 4588936 | Digitalized position control for a D.C. motor | Hiromu Itoh, Kenji Hachimura | 1986-05-13 |
| 4318115 | Dual junction photoelectric semiconductor device | Toshihumi Yoshikawa, Akira Aso, Hitoshi Kawanabe | 1982-03-02 |
| 4309604 | Apparatus for sensing the wavelength and intensity of light | Toshihumi Yoshikawa, Akira Aso, Hitoshi Kawanabe | 1982-01-05 |