Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11441682 | Piston ring, reciprocating compressor, method for selecting piston ring and method for evaluating life of piston ring | Naofumi Kanei | 2022-09-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11441682 | Piston ring, reciprocating compressor, method for selecting piston ring and method for evaluating life of piston ring | Naofumi Kanei | 2022-09-13 |