Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11982212 | Hollow engine valve and production method thereof | Takaaki Kumagai | 2024-05-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11982212 | Hollow engine valve and production method thereof | Takaaki Kumagai | 2024-05-14 |