IF

Isao Funyuu

HI Hitachi: 4 patents #332 of 4,225Top 8%
Overall (2003): #9,752 of 273,478Top 4%
5
Patents 2003

Issued Patents 2003

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6640515 Frame member used in friction stir welding Kinya Aota, Masakuni Ezumi, Yasuo Ishimaru, Hisanori Okamura, Akihiro Satou 2003-11-04
6619534 Friction stir welding method using members which overlap and have protrusion at the weld location prior to the welding Kinya Aota, Masakuni Ezumi, Yasuo Ishimaru, Hisanori Okamura, Akihiro Satou 2003-09-16
6613447 Structural body formed by friction stir welding and having protrusion at the weld provided prior to the welding Kinya Aota, Masakuni Ezumi, Yasuo Ishimaru, Hisanori Okamura, Akihiro Satou 2003-09-02
6607837 Structural body formed by friction stir welding method Kinya Aota, Masakuni Ezumi, Yasuo Ishimaru, Hisanori Okamura, Akihiro Satou 2003-08-19
6585443 Structural body formed by friction stir welding two members, one of which has a protruding portion Kinya Aota, Masakuni Ezumi, Yasuo Ishimaru, Hisanori Okamura, Akihiro Satou 2003-07-01