Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6419144 | Method of forming structural body using friction stir welding, and structural body formed | Masakuni Ezumi, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu, Akihiro Satou | 2002-07-16 |
| 6382498 | Friction stir welding method including positioning of rotary tool, and structural body formed thereby | Masakuni Ezumi, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu, Akihiro Satou | 2002-05-07 |
| 6378754 | Friction stir welding method including removal of protruding portion, and structural body formed thereby | Masakuni Ezumi, Yasuo Ishimaru, Hisanori Okamura, Isao Funyuu, Akihiro Satou | 2002-04-30 |