Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 6540128 | Friction stir welding method and apparatus, and welded structure | Satoshi Hirano, Hisanori Okamura, Yasuhisa Aono, Kazutaka Okamoto, Kinya Aota +1 more | 2003-04-01 |