Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874939 | Method and apparatus for detecting position/variance of input light using linear and quadratic outputs | Yoshiro Nishimoto, Yasuji Yoneda, Shinichi Imaoka, Yasuhide Nakai, Akimitsu Nakaue +7 more | 1989-10-17 |
| 4848545 | Electromagnetically controlled spring clutch mechanism | — | 1989-07-18 |
| 4825988 | Electromagnetically controlled spring clutch mechanism | — | 1989-05-02 |