Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11175433 | Multi optical axis sensor | Shunkichi Sasaki, Satoshi Nishiuchi, Keisaku Kikuchi | 2021-11-16 |
| 11041975 | Multiple-optical-axis photoelectric sensor | Satoshi Nishiuchi, Shunkichi Sasaki, Keisaku Kikuchi | 2021-06-22 |