Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10526933 | Hollow engine valve and manufacturing method therefor | Hidenobu Nishio, Kenichiro Hirao | 2020-01-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10526933 | Hollow engine valve and manufacturing method therefor | Hidenobu Nishio, Kenichiro Hirao | 2020-01-07 |