Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11149611 | Exhaust purification unit | Isao Oohara | 2021-10-19 |
| 10920633 | Maintenance tool and maintenance method for exhaust purification device | Yoshihisa Ueda, Yuuta Kageyama | 2021-02-16 |