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Masaki KUMAGAI
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of joining heat-treatable aluminum alloy members by friction...
Patent number
10,016,837
Issue date
Jul 10, 2018
UACJ Corporation
Masaki Kumagai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Process for spot-joining stacked metal foils
Patent number
9,302,343
Issue date
Apr 5, 2016
UACJ Corporation
Masaki Kumagai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Impact absorbing member and bumper device
Patent number
9,193,320
Issue date
Nov 24, 2015
UACJ Corporation
Yutaka Yamada
B60 - VEHICLES IN GENERAL
Information
Patent Grant
MIG welded joint between aluminum and steel members and MIG welding...
Patent number
8,742,294
Issue date
Jun 3, 2014
Sumitomo Light Metal Industries, Ltd.
Toshihiko Fukuda
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of joining together end portions of superposed members
Patent number
8,028,888
Issue date
Oct 4, 2011
Sumitomo Light Metal Industries, Ltd.
Masaki Kumagai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Heat treating friction stir welded aluminum alloy members and joine...
Patent number
7,810,700
Issue date
Oct 12, 2010
Sumitomo Light Metal Industries, Ltd.
Masaki Kumagai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Friction stir spot joining device
Patent number
7,802,713
Issue date
Sep 28, 2010
Kawasaki Jukogyo Kabushiki Kaisha
Kazumi Fukuhara
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of manufacturing heat exchanger tube and heat exchanger
Patent number
7,802,716
Issue date
Sep 28, 2010
Denso Corporation
Hiroshi Nishikawa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
MIG welded joint between aluminum and steel members and MIG welding...
Patent number
7,800,011
Issue date
Sep 21, 2010
Sumitomo Light Metal Industries, Ltd.
Toshihiko Fukuda
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Rotary tool for friction stir spot welding and method of friction s...
Patent number
7,654,435
Issue date
Feb 2, 2010
Sumitomo Light Metal Industries, Ltd.
Masaki Kumagai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of joining together two planar members by friction stir weld...
Patent number
6,921,010
Issue date
Jul 26, 2005
Sumitomo Light Metal Industries, Ltd.
Sunao Tanaka
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of manufacturing tubular body, by friction stir welding
Patent number
6,892,928
Issue date
May 17, 2005
Sumitomo Light Metal Industries, Ltd.
Sunao Tanaka
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Product of a halogen containing Ti-Al system intermetallic compound...
Patent number
5,451,366
Issue date
Sep 19, 1995
Sumitomo Light Metal Industries, Ltd.
Masaki Kumagai
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Method of spot welding aluminum alloys
Patent number
5,391,854
Issue date
Feb 21, 1995
Sumitomo Light Metal Industries, Ltd.
Keizo Namba
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Powder processing of titanium aluminide having superior oxidation r...
Patent number
5,372,663
Issue date
Dec 13, 1994
Sumitomo Light Metal Industries, Ltd.
Kazuhisa Shibue
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Electrode for spot welding
Patent number
5,334,814
Issue date
Aug 2, 1994
Sumitomo Light Metal Industries, Ltd.
Tadashi Nosetani
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
HIGHLY CORROSION RESISTANT COPPER TUBE
Publication number
20190161830
Publication date
May 30, 2019
UACJ CORPORATION
Masaki KUMAGAI
F28 - HEAT EXCHANGE IN GENERAL
Information
Patent Application
METHOD OF JOINING HEAT-TREATABLE ALUMINUM ALLOY MEMBERS BY FRICTION...
Publication number
20170021447
Publication date
Jan 26, 2017
Sumitomo Light Metal Industries, Ltd.
Masaki KUMAGAI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
PROCESS FOR SPOT-JOINING STACKED METAL FOILS
Publication number
20150183053
Publication date
Jul 2, 2015
UACJ CORPORATION
Masaki KUMAGAI
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
IMPACT ABSORBING MEMBER AND BUMPER DEVICE
Publication number
20140125073
Publication date
May 8, 2014
UACJ CORPORATION
Yutaka Yamada
B60 - VEHICLES IN GENERAL
Information
Patent Application
METHOD OF JOINING HEAT-TREATABLE ALUMINUM ALLOY MEMBERS BY FRICTION...
Publication number
20090250144
Publication date
Oct 8, 2009
Sumitomo Light Metal Industries, Ltd.
Masaki Kumagai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Friction stir spot joining device
Publication number
20090159639
Publication date
Jun 25, 2009
Kazumi Fukuhara
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
MIG WELDED JOINT BETWEEN ALUMINUM AND STEEL MEMBERS AND MIG WELDING...
Publication number
20080206593
Publication date
Aug 28, 2008
Sumitomo Light Metal Industries, Ltd.
Toshihiko Fukuda
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
MIG WELDED JOINT BETWEEN ALUMINUM AND STEEL MEMBERS AND MIG WELDING...
Publication number
20080206594
Publication date
Aug 28, 2008
Sumitomo Light Metal Industries, Ltd.
Toshihiko Fukuda
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Method of joining together dissimilar metal members
Publication number
20080029581
Publication date
Feb 7, 2008
Sumitomo Light Metal Industries, Ltd.
Masaki Kumagai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
ROTARY TOOL FOR FRICTION STIR SPOT WELDING AND METHOD OF FRICTION S...
Publication number
20080006677
Publication date
Jan 10, 2008
Sumitomo Light Metal Industries, Ltd.
Masaki KUMAGAI
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Method of manufacturing heat exchanger tube and heat exchanger
Publication number
20070138237
Publication date
Jun 21, 2007
Hiroshi Nishikawa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Method of joining heat-treatable aluminum alloy members by friction...
Publication number
20070138239
Publication date
Jun 21, 2007
Sumitomo Light Metal Industries, Ltd.
Masaki Kumagai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Method of joining aluminum alloy members and joined product used fo...
Publication number
20070138235
Publication date
Jun 21, 2007
Sumitomo Light Metal Industries, Ltd.
Masaki Kumagai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Method of joining together end portions of superposed members
Publication number
20060278325
Publication date
Dec 14, 2006
Sumitomo Light Metal Industries, Ltd.
Masaki Kumagai
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Method of joining together two planar members by friction stir weld...
Publication number
20040084506
Publication date
May 6, 2004
Sumitomo Light Metal Industries, Ltd.
Sunao Tanaka
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Method of manufacturing tubular body, by friction stir welding
Publication number
20040041005
Publication date
Mar 4, 2004
Sumitomo Light Metal Industries, Ltd.
Sunao Tanaka
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR