Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8025200 | Friction stir welding machine and friction stir welding tool | Ryoji Ohashi, Shinji Koga, Atsushi Kato | 2011-09-27 |
| 7896216 | Sticking pad, friction stir welding machine and friction stir welding system | Hidehito Nishida | 2011-03-01 |