Issued Patents 2024
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11873780 | Combined oil ring | Masahiro Uchiumi, Kenji Arai, Makoto Kajiwara, Hajime Ando | 2024-01-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11873780 | Combined oil ring | Masahiro Uchiumi, Kenji Arai, Makoto Kajiwara, Hajime Ando | 2024-01-16 |