Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9506138 | Piston ring | Hiroyuki Sugiura, Atsushi Chiba, Kazuhiro Fujimura, Katsuaki Ogawa, Kazuhiro Sameshima | 2016-11-29 |
| 9464717 | Piston ring | Michihiro Ito, Naoyuki Akimoto, Iwao Hiraishi, Atsushi Chiba | 2016-10-11 |