Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11603929 | Wire for piston ring, and manufacturing method of piston ring | Atsushi Nakazawa, Masahide Hama | 2023-03-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11603929 | Wire for piston ring, and manufacturing method of piston ring | Atsushi Nakazawa, Masahide Hama | 2023-03-14 |