Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9683480 | Spark ignition type internal combustion engine | Yoshihiro Nomura, Makoto Koike, Yoshifumi Wakisaka, Yoshihiro Hotta, Kiyomi Nakakita | 2017-06-20 |
| 9359946 | Internal combustion engine and method for manufacturing the same | Naoki Nishikawa, Takumi Hijii, Akio Kawaguchi, Ryouta Yatsuduka, Fumio Shimizu +1 more | 2016-06-07 |
| 8893693 | Internal combustion engine and method of producing same | Takumi Hijii, Naoki Nishikawa, Akio Kawaguchi, Koichi Nakata, Yoshifumi Wakisaka +1 more | 2014-11-25 |