Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11491576 | Refill friction stir spot welding method, pressing tool set, and refill friction stir spot welding device | Shintaro FUKADA, Takashi Ninomiya, Etsuko Yamada, Masaaki Hirano | 2022-11-08 |
| 11292077 | Refill friction stir spot welding method and refill friction stir spot welding device | Shintaro FUKADA, Noriyuki Taniyama | 2022-04-05 |