Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9791045 | Oil ring | Masaki Fukuma, Hiroaki Muranaka, Shuma Aoki | 2017-10-17 |
| 9556821 | Piston structure for engine | Koichi Hirata, Mitsutaka Yamaya, Yasunori Kanda, Tatsuya Kobayashi, Takeshi Motomuro | 2017-01-31 |