Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11154994 | Work device and dual-arm work device | Hiroshi Isobe, Naoki Marui, Hiroyuki Yamada | 2021-10-26 |
| 11130225 | Working device and double-arm type working device | Hiroshi Isobe, Naoki Marui, Hiroyuki Yamada | 2021-09-28 |
| 11000946 | Link operating device | Hiroshi Isobe, Seigo Sakata | 2021-05-11 |