Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10689743 | Piston ring | Yoshiyuki Saito, Takeshi Yamada, Yoshiyuki Umemoto, Hiroaki Mizuno | 2020-06-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10689743 | Piston ring | Yoshiyuki Saito, Takeshi Yamada, Yoshiyuki Umemoto, Hiroaki Mizuno | 2020-06-23 |