Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7550708 | Photoelectric sensor and emitting device for photoelectric sensor | — | 2009-06-23 |
| 7427748 | Reflection type photoelectric switch | Katsunari Koyama | 2008-09-23 |
| 7417217 | Regressive reflection type photoelectric switch | Shinichi Tsukigi | 2008-08-26 |