Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6783055 | Friction stir welding method and rotary tool | Masakuni Ezumi, Kazushige Fukuyori | 2004-08-31 |
| 6739495 | Friction stir welding method and component part welded by the method | Kinya Aota, Kouji Satou, Masahiko Sakamoto | 2004-05-25 |
| 6729526 | Friction stir welding apparatus and method and processing apparatus and method | Kazutaka Okamoto, Satoshi Hirano, Masayuki Doi, Masahisa Inagaki, Tomio Odakura +1 more | 2004-05-04 |
| 6722286 | Structure and railway car | Isao Funyuu, Akihiro Satou, Kinya Aota, Masakuni Ezumi, Yasuo Ishimaru | 2004-04-20 |
| 6715665 | Friction stir welding method and apparatus, and welded structure | Satoshi Hirano, Yasuhisa Aono, Kazutaka Okamoto, Kinya Aota, Tomio Odakura +1 more | 2004-04-06 |
| 6716538 | Structural body formed by friction stir welding | Kinya Aota, Masakuni Ezumi, Yasuo Ishimaru, Isao Funyuu, Akihiro Satou | 2004-04-06 |