Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5264809 | Oscillator circuit and proximity switch using | — | 1993-11-23 |
| 5142416 | Reflection-type photoelectric switch, fresnel lens and method of manufacturing said lens | Arata Nakamura, Tetuya Akagi, Fumihiko Misumi, Satoru Shimokawa | 1992-08-25 |