Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11181179 | Sprocket and drive mechanism | Yuji Kurematsu, Tsuyoshi Kabai | 2021-11-23 |
| 11009114 | Sprocket and transmission mechanism | Yuji Kurematsu, Tsuyoshi Kabai | 2021-05-18 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11181179 | Sprocket and drive mechanism | Yuji Kurematsu, Tsuyoshi Kabai | 2021-11-23 |
| 11009114 | Sprocket and transmission mechanism | Yuji Kurematsu, Tsuyoshi Kabai | 2021-05-18 |