Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11035414 | Torque transmission shaft | Keisuke Nakao | 2021-06-15 |
| 11022179 | Shaft coupling structure and telescopic shaft | Keisuke Nakao | 2021-06-01 |
| 10914338 | Telescopic shaft | Masaki Takahashi, Shoji Kido | 2021-02-09 |