Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8408444 | Friction stir tool | Seunghwan Park, Satoshi Hirano, Shinya Imano, Jun Sato, Yutaka Sato +2 more | 2013-04-02 |
| 7703656 | Friction stir welding tool and friction stir welding apparatus | Seung Hwan Park, Satoshi Hirano, Yutaka Sato, Kyosuke Yoshimi | 2010-04-27 |