Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5428253 | Proximity switch | Akimitsu Ogata | 1995-06-27 |
| 4926049 | Reflection type photoelectric switch | Arata Nakamura | 1990-05-15 |
| 4388527 | Photoelectric switch | Toshifumi Fukuyama | 1983-06-14 |
| 4381446 | Photoelectric switch | Toshifumi Fukuyama | 1983-04-26 |
| 4282430 | Reflection-type photoelectric switching apparatus | Hideaki Hatten, Koichi Tsujino, Toshifumi Fukuyama | 1981-08-04 |
| 4207464 | Photoelectric switch | Toshifumi Fukuyama | 1980-06-10 |