Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10267206 | Exhaust device for internal combustion engine | Takayuki Hamamoto, Takanobu Sugiyama | 2019-04-23 |
| 10240507 | Exhaust device for four-cylinder internal combustion engine | Takanobu Sugiyama, Takayuki Hamamoto, Yuta Kanashima | 2019-03-26 |