Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10221734 | Lubrication structure and lubrication method for upper pin in piston crank mechanism of internal combustion engine | Daisuke Watanabe, Shigeru Nakajima, Yoshihiro Kobayashi | 2019-03-05 |