Issued Patents 2002
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6494011 | Hollow extruded frame member for friction stir welding | Masakuni Ezumi, Kazusige Fukuyori, Takeshi Kawasaki | 2002-12-17 |
| 6471112 | Friction stir welding method | Masakuni Ezumi, Kazusige Fukuyori | 2002-10-29 |
| 6422449 | Method of mending a friction stir welding portion | Masakuni Ezumi, Kazusige Fukuyori | 2002-07-23 |
| 6419144 | Method of forming structural body using friction stir welding, and structural body formed | Kinya Aota, Masakuni Ezumi, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu | 2002-07-16 |
| 6382498 | Friction stir welding method including positioning of rotary tool, and structural body formed thereby | Kinya Aota, Masakuni Ezumi, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu | 2002-05-07 |
| 6378754 | Friction stir welding method including removal of protruding portion, and structural body formed thereby | Kinya Aota, Masakuni Ezumi, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu | 2002-04-30 |