Issued Patents 2016
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9371797 | Piston ring | Takuma Sekiya, Yuuichi Murayama, Masayuki Sato, Junya Takahashi, Masaki Moronuki | 2016-06-21 |
| 9347559 | Piston ring | Takuma Sekiya, Yuuichi Murayama, Masayuki Sato, Junya Takahashi, Masaki Moronuki | 2016-05-24 |