Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10247131 | Cylinder head of engine | Hayato Sugimura, Toshihiko Oka, Masahiko Kubo, Kazuki Yagi | 2019-04-02 |
| 9587529 | Engine | Hayato Sugimura, Toshihiko Oka, Kazuki Yagi | 2017-03-07 |
| 9562446 | Engine | Hayato Sugimura, Toshihiko Oka, Kazuki Yagi | 2017-02-07 |