Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11248504 | Exhaust device for internal combustion engine | Keisuke Kishikawa, Yoji Fukui, Takuya Otsuka | 2022-02-15 |
| 11236652 | Exhaust device for internal combustion engine | Keisuke Kishikawa, Yoji Fukui, Takuya Otsuka | 2022-02-01 |