Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11175433 | Multi optical axis sensor | Shunkichi Sasaki, Nobuchika Takiguchi, Keisaku Kikuchi | 2021-11-16 |
| 11162838 | Multiple-optical axis photoelectric sensor | Yasuchika Konishi, Keisaku Kikuchi, Yuya Yamada | 2021-11-02 |
| 11041975 | Multiple-optical-axis photoelectric sensor | Shunkichi Sasaki, Nobuchika Takiguchi, Keisaku Kikuchi | 2021-06-22 |