Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9556821 | Piston structure for engine | Koichi Hirata, Mitsutaka Yamaya, Shuji Takuma, Yasunori Kanda, Tatsuya Kobayashi | 2017-01-31 |
| 9347396 | Piston structure for engine | Koichi Hirata, Yasunori Kanda, Kouji Kubo, Mitsutaka Yamaya, Shuji Takuma +1 more | 2016-05-24 |