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Takahagi, JP
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last 30 patents
Information
Patent Grant
Friction stir welding method, frame members used therein, and produ...
Patent number
7,036,707
Issue date
May 2, 2006
Hitachi, Ltd.
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Extruded frame member for use in friction stir welding
Patent number
6,936,332
Issue date
Aug 30, 2005
Hitachi, Ltd.
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Structure and railway car
Patent number
6,722,286
Issue date
Apr 20, 2004
Hitachi, Ltd.
Hisanori Okamura
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Structural body formed by friction stir welding
Patent number
6,716,538
Issue date
Apr 6, 2004
Hitachi, Ltd.
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Frame member used in friction stir welding
Patent number
6,640,515
Issue date
Nov 4, 2003
Hitachi, Ltd.
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Friction stir welding method using members which overlap and have p...
Patent number
6,619,534
Issue date
Sep 16, 2003
Hitachi, Ltd.
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Structural body formed by friction stir welding and having protrusi...
Patent number
6,613,447
Issue date
Sep 2, 2003
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Structural body formed by friction stir welding method
Patent number
6,607,837
Issue date
Aug 19, 2003
Hitachi, Ltd.
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Structural body formed by friction stir welding two members, one of...
Patent number
6,585,443
Issue date
Jul 1, 2003
Hitachi, Ltd.
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of forming structural body using friction stir welding, and...
Patent number
6,419,144
Issue date
Jul 16, 2002
Hitachi, Ltd.
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Friction stir welding method including positioning of rotary tool,...
Patent number
6,382,498
Issue date
May 7, 2002
Hitachi, Ltd.
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Friction stir welding method including removal of protruding portio...
Patent number
6,378,754
Issue date
Apr 30, 2002
Hitachi, Ltd.
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Structure joined by friction stir welding
Patent number
6,305,866
Issue date
Oct 23, 2001
Hitachi, Ltd.
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Friction stir welding apparatus
Patent number
6,237,829
Issue date
May 29, 2001
Hitachi, Ltd.
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Friction stir welding method, frame members used therein, and produ...
Patent number
6,050,474
Issue date
Apr 18, 2000
Hitachi, Ltd.
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
Friction stir welding method, frame members used therein, and produ...
Publication number
20040004109
Publication date
Jan 8, 2004
Kinya Aota
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Structure and railway car
Publication number
20030005852
Publication date
Jan 9, 2003
Hisanori Okamura
B61 - RAILWAYS
Information
Patent Application
Friction stir welding method using members which overlap and have p...
Publication number
20020162876
Publication date
Nov 7, 2002
Kinya Aota
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Structural body formed by friction stir welding and having protrusi...
Publication number
20020139831
Publication date
Oct 3, 2002
Kinya Aota
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Structural body formed by friction stir welding method
Publication number
20020094446
Publication date
Jul 18, 2002
Kinya Aota
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Structural body formed by friction stir welding
Publication number
20020090526
Publication date
Jul 11, 2002
Kinya Aota
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Extruded frame member for use in friction stir welding
Publication number
20010011672
Publication date
Aug 9, 2001
Kinya Aota
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Method of forming structural body using friction stir welding, and...
Publication number
20010011673
Publication date
Aug 9, 2001
Kinya Aota
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Friction stir welding method including positioning of rotary tool,...
Publication number
20010011671
Publication date
Aug 9, 2001
Kinya Aota
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Friction stir welding method including removal of protruding portio...
Publication number
20010011670
Publication date
Aug 9, 2001
Kinya Aota
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Structural body formed by friction stir welding two members, one of...
Publication number
20010010855
Publication date
Aug 2, 2001
Kinya Aota
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC