Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11633802 | Method for operating double-action friction stir welding device, and double-action friction stir welding device | Hideki Okada, Syuhei YOSHIKAWA, Masahiro Takagi | 2023-04-25 |