Issued Patents All Time
Showing 1–16 of 16 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 |
| 6513698 | Method of manufacture of a structural body | Masakuni Ezumi, Akihiro Satou | 2003-02-04 |
| 6502739 | Method of manufacture of a structural body | Masakuni Ezumi, Akihiro Satou | 2003-01-07 |
| 6494011 | Hollow extruded frame member for friction stir welding | Masakuni Ezumi, Akihiro Satou, Takeshi Kawasaki | 2002-12-17 |
| 6474533 | Friction stir welding method | Masakuni Ezumi, Yoshihiko Ina, Tetsuya Matsunaga | 2002-11-05 |
| 6471112 | Friction stir welding method | Akihiro Satou, Masakuni Ezumi | 2002-10-29 |
| 6422449 | Method of mending a friction stir welding portion | Masakuni Ezumi, Akihiro Satou | 2002-07-23 |
| 6325274 | Method of manufacture of a structural body | Masakuni Ezumi, Akihiro Satou | 2001-12-04 |
| 6315187 | Friction stir welding method | Akihiro Satou, Masakuni Ezumi | 2001-11-13 |
| 6311889 | Manufacturing method of a structure body and a manufacturing apparatus of a structure body | Masakuni Ezumi, Akihiro Satou | 2001-11-06 |
| 6273323 | Manufacturing method of a structural body | Masakuni Ezumi, Akihiro Satou | 2001-08-14 |
| 6250037 | Structure body and hollow shape extruded frame member | Masakuni Ezumi, Akihiro Satou, Takeshi Kawasaki | 2001-06-26 |
| 4617818 | Structural metal sheet and method for forming the same | — | 1986-10-21 |