Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11786987 | Friction stir welding tool and friction stir welding method | Ryoichi HATANO | 2023-10-17 |
| 11633802 | Method for operating double-action friction stir welding device, and double-action friction stir welding device | Hideki Okada, Masahiro Miyake, Masahiro Takagi | 2023-04-25 |