Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6729526 | Friction stir welding apparatus and method and processing apparatus and method | Kazutaka Okamoto, Satoshi Hirano, Masayuki Doi, Hisanori Okamura, Masahisa Inagaki +1 more | 2004-05-04 |
| 6715665 | Friction stir welding method and apparatus, and welded structure | Satoshi Hirano, Hisanori Okamura, Yasuhisa Aono, Kazutaka Okamoto, Kinya Aota +1 more | 2004-04-06 |