Issued Patents 2004
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821362 | Manufacturing method of auger | — | 2004-11-23 |
| 6777107 | Structural body formed by friction stir welding | Masakuni Ezumi, Kazusige Fukuyori | 2004-08-17 |
| 6745929 | Method of manufacturing structural body and structural body | Masakuni Ezumi, Kazushige Fukuyori | 2004-06-08 |
| 6733900 | Car body formed by friction stir welding | Masakuni Ezumi, Kazusige Fukuyori | 2004-05-11 |
| 6722286 | Structure and railway car | Hisanori Okamura, Isao Funyuu, Kinya Aota, Masakuni Ezumi, Yasuo Ishimaru | 2004-04-20 |
| 6716538 | Structural body formed by friction stir welding | Kinya Aota, Masakuni Ezumi, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu | 2004-04-06 |
| 6691484 | Hollow extruded frame member for friction stir welding and structure body formed therefrom | Masakuni Ezumi, Kazusige Fukuyori, Takeshi Kawasaki | 2004-02-17 |