Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11215091 | Hollow engine valve and manufacturing method therefor | Hirokazu Morii, Kenichiro Hirao | 2022-01-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11215091 | Hollow engine valve and manufacturing method therefor | Hirokazu Morii, Kenichiro Hirao | 2022-01-04 |