Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5177711 | Object detecting switch device | Yukio Yamaguchi, Atsushi Kawano, Hiroshi Shimamoto | 1993-01-05 |
| 5028113 | Attaching structure of optical fibers in photoelectric switch | Tatsuya Benkan | 1991-07-02 |
| 5008862 | Object detecting switch device | Hiroshi Shimamoto, Yukio Yamaguchi, Atsushi Kawano | 1991-04-16 |
| 4835519 | Detecting apparatus using ultrasonic waves | Yukio Yamaguchi | 1989-05-30 |