Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6779706 | Frame member for friction stir welding | Masakuni Ezumi, Yoshihiko Ina, Tetsuya Matsunaga | 2004-08-24 |
| 6777107 | Structural body formed by friction stir welding | Akihiro Satou, Masakuni Ezumi | 2004-08-17 |
| 6733900 | Car body formed by friction stir welding | Akihiro Satou, Masakuni Ezumi | 2004-05-11 |
| 6691484 | Hollow extruded frame member for friction stir welding and structure body formed therefrom | Masakuni Ezumi, Akihiro Satou, Takeshi Kawasaki | 2004-02-17 |