Inventor · Hitachi, JP

Akihiro Satou

34Patents
16h-index
21Co-inventors
81Inventor score

Filing activity: Jun 14, 1999 → Mar 27, 2019

Most-cited inventions

PatentTitleAreaCited byStatus
US7036707B2 Friction stir welding method, frame members used therein, and product formed thereby Emerging Cross-Sectional Technologies 71 Expired
US6250037A Structure body and hollow shape extruded frame member Performing Operations; Transporting 57 Expired
US6311889A Manufacturing method of a structure body and a manufacturing apparatus of a structure body Performing Operations; Transporting 45 Expired
US6305866A Structure joined by friction stir welding Emerging Cross-Sectional Technologies 45 Expired
US6237829A Friction stir welding apparatus Emerging Cross-Sectional Technologies 44 Expired
US6273323A Manufacturing method of a structural body Emerging Cross-Sectional Technologies 41 Expired
US6315187A Friction stir welding method Emerging Cross-Sectional Technologies 38 Expired
US6382498B2 Friction stir welding method including positioning of rotary tool, and structural body formed thereby Emerging Cross-Sectional Technologies 29 Expired
US6422449B1 Method of mending a friction stir welding portion Emerging Cross-Sectional Technologies 26 Expired
US6471112B2 Friction stir welding method Emerging Cross-Sectional Technologies 25 Expired
US6419144B2 Method of forming structural body using friction stir welding, and structural body formed Emerging Cross-Sectional Technologies 25 Expired
US6378754B2 Friction stir welding method including removal of protruding portion, and structural body formed thereby Emerging Cross-Sectional Technologies 25 Expired
US6494011B2 Hollow extruded frame member for friction stir welding Performing Operations; Transporting 25 Expired
US6745929B1 Method of manufacturing structural body and structural body Emerging Cross-Sectional Technologies 19 Expired
US6502739B2 Method of manufacture of a structural body Emerging Cross-Sectional Technologies 16 Expired
US6325274A Method of manufacture of a structural body Emerging Cross-Sectional Technologies 16 Expired
US6513698B2 Method of manufacture of a structural body Emerging Cross-Sectional Technologies 15 Expired
US6821362B2 Manufacturing method of auger Chemistry; Metallurgy 14 Expired
US6619534B2 Friction stir welding method using members which overlap and have protrusion at the weld location prior to the welding Emerging Cross-Sectional Technologies 11 Expired
US6585443B2 Structural body formed by friction stir welding two members, one of which has a protruding portion Emerging Cross-Sectional Technologies 11 Expired
US6722286B2 Structure and railway car Performing Operations; Transporting 8 Expired
US6607837B2 Structural body formed by friction stir welding method Emerging Cross-Sectional Technologies 7 Expired
US6691484B2 Hollow extruded frame member for friction stir welding and structure body formed therefrom Performing Operations; Transporting 7 Expired
US6936332B2 Extruded frame member for use in friction stir welding Emerging Cross-Sectional Technologies 7 Expired
US6733900B2 Car body formed by friction stir welding Emerging Cross-Sectional Technologies 6 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.