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Chiyoda-ku, Tokyo, JP
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last 30 patents
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Patent Grant
Rotating tool for double-sided friction stir welding, double-sided...
Patent number
12,194,562
Issue date
Jan 14, 2025
JFE Steel Corporation
Muneo Matsushita
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Information
Patent Grant
Resistance spot welding method and weld member production method
Patent number
12,151,299
Issue date
Nov 26, 2024
JFE Steel Corporation
Chikaumi Sawanishi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Double-side friction stir welding method and double-side friction s...
Patent number
12,097,571
Issue date
Sep 24, 2024
JFE Steel Corporation
Muneo Matsushita
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Information
Patent Grant
Spot welded member
Patent number
12,037,665
Issue date
Jul 16, 2024
JFE Steel Corporation
Minoru Tanaka
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Information
Patent Grant
Resistance spot welding method and method for producing resistance...
Patent number
11,992,892
Issue date
May 28, 2024
JFE Steel Corporation
Reiko Endo
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Information
Patent Grant
Resistance spot welding method and weld member production method
Patent number
11,958,123
Issue date
Apr 16, 2024
JFE Steel Corporation
Chikaumi Sawanishi
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Information
Patent Grant
Resistance spot welding method and weld member production method
Patent number
11,911,837
Issue date
Feb 27, 2024
JFE Steel Corporation
Chikaumi Sawanishi
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Information
Patent Grant
Resistance spot welding method and weld member production method
Patent number
11,904,404
Issue date
Feb 20, 2024
JFE Steel Corporation
Chikaumi Sawanishi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Resistance spot welding method and weld member production method
Patent number
11,623,298
Issue date
Apr 11, 2023
JFE Steel Corporation
Chikaumi Sawanishi
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Information
Patent Grant
Resistance spot welding method
Patent number
11,504,796
Issue date
Nov 22, 2022
JFE Steel Corporation
Chikaumi Sawanishi
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Information
Patent Grant
Resistance spot welding method
Patent number
11,498,150
Issue date
Nov 15, 2022
JFE Steel Corporation
Koichi Taniguchi
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Information
Patent Grant
Double-sided friction stir welding method for metal sheets and doub...
Patent number
11,446,757
Issue date
Sep 20, 2022
JFE Steel Corporation
Muneo Matsushita
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Information
Patent Grant
Resistance spot welding method
Patent number
11,298,773
Issue date
Apr 12, 2022
JFE Steel Corporation
Koichi Taniguchi
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Information
Patent Grant
Friction stir welding method and apparatus for structural steel
Patent number
11,241,755
Issue date
Feb 8, 2022
JFE Steel Corporation
Muneo Matsushita
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Information
Patent Grant
Hot-pressed member and manufacturing method therefor
Patent number
11,168,378
Issue date
Nov 9, 2021
JFE Steel Corporation
Yasuaki Okita
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Information
Patent Grant
High-strength steel sheet and method for producing same
Patent number
11,136,643
Issue date
Oct 5, 2021
JFE Steel Corporation
Katsutoshi Takashima
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Resistance spot welding method
Patent number
11,065,712
Issue date
Jul 20, 2021
JFE Steel Corporation
Chikaumi Sawanishi
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Information
Patent Grant
Resistance spot welding method and welded member production method
Patent number
10,946,470
Issue date
Mar 16, 2021
JFE Steel Corporation
Chikaumi Sawanishi
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Information
Patent Grant
Automotive member having resistance weld
Patent number
10,940,556
Issue date
Mar 9, 2021
JFE Steel Corporation
Katsutoshi Takashima
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Information
Patent Grant
Resistance spot welding method and welded member production method
Patent number
10,835,986
Issue date
Nov 17, 2020
JFE Steel Corporation
Chikaumi Sawanishi
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Information
Patent Grant
Resistance spot welding method
Patent number
10,773,334
Issue date
Sep 15, 2020
JFE Steel Corporation
Chikaumi Sawanishi
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Information
Patent Grant
Friction stir welding apparatus for structural steel
Patent number
10,766,099
Issue date
Sep 8, 2020
JFE Steel Corporation
Muneo Matsushita
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Information
Patent Grant
Resistance spot welding device
Patent number
10,722,972
Issue date
Jul 28, 2020
JFE Steel Corporation
Koichi Taniguchi
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Information
Patent Grant
Resistance spot welding method and weld joint
Patent number
10,641,304
Issue date
May 5, 2020
JFE Steel Corporation
Koichi Taniguchi
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Information
Patent Grant
Resistance spot welding method
Patent number
10,625,365
Issue date
Apr 21, 2020
JFE Steel Corporation
Chikaumi Sawanishi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Resistance spot welding method and method for manufacturing resista...
Patent number
10,625,368
Issue date
Apr 21, 2020
JFE Steel Corporation
Chikaumi Sawanishi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Resistance spot welding method
Patent number
10,328,518
Issue date
Jun 25, 2019
JFE Steel Corporation
Yasuaki Okita
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Information
Patent Grant
Indirect spot welding method
Patent number
10,207,353
Issue date
Feb 19, 2019
JFE Steel Corporation
Muneo Matsushita
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Information
Patent Grant
Indirect spot welding apparatus
Patent number
10,207,354
Issue date
Feb 19, 2019
JFE Steel Corporation
Muneo Matsushita
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Information
Patent Grant
Indirect spot welding method
Patent number
10,189,111
Issue date
Jan 29, 2019
JFE Steel Corporation
Muneo Matsushita
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Patents Applications
last 30 patents
Information
Patent Application
DOUBLE-SIDE FRICTION STIR WELDING METHOD AND DOUBLE-SIDE FRICTION S...
Publication number
20230286077
Publication date
Sep 14, 2023
JFE STEEL CORPORATION
Muneo Matsushita
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Information
Patent Application
SPOT WELDED MEMBER
Publication number
20220049330
Publication date
Feb 17, 2022
JFE STEEL CORPORATION
Minoru Tanaka
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Information
Patent Application
RESISTANCE SPOT WELDING METHOD AND METHOD FOR PRODUCING RESISTANCE...
Publication number
20210362266
Publication date
Nov 25, 2021
JFE STEEL CORPORATION
Reiko Endo
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Information
Patent Application
RESISTANCE SPOT WELDING METHOD AND WELD MEMBER PRODUCTION METHOD
Publication number
20210260684
Publication date
Aug 26, 2021
JFE STEEL CORPORATION
Chikaumi SAWANISHI
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Information
Patent Application
STEEL SHEET ASSEMBLY, METHOD OF MANUFACTURING STEEL SHEET ASSEMBLY,...
Publication number
20210260685
Publication date
Aug 26, 2021
JFE STEEL CORPORATION
Hiroshi Matsuda
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Information
Patent Application
RESISTANCE SPOT WELDING METHOD AND WELD MEMBER PRODUCTION METHOD
Publication number
20210252629
Publication date
Aug 19, 2021
JFE STEEL CORPORATION
Chikaumi SAWANISHI
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Information
Patent Application
RESISTANCE SPOT WELDING METHOD AND WELD MEMBER PRODUCTION METHOD
Publication number
20210213556
Publication date
Jul 15, 2021
JFE STEEL CORPORATION
Chikaumi SAWANISHI
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Information
Patent Application
ROTATING TOOL FOR DOUBLE-SIDED FRICTION STIR WELDING, DOUBLE-SIDED...
Publication number
20210023650
Publication date
Jan 28, 2021
JFE STEEL CORPORATION
Muneo Matsushita
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Information
Patent Application
RESISTANCE SPOT WELDING METHOD AND WELD MEMBER PRODUCTION METHOD
Publication number
20210023646
Publication date
Jan 28, 2021
JFE STEEL CORPORATION
Chikaumi SAWANISHI
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Information
Patent Application
RESISTANCE SPOT WELDING METHOD AND WELD MEMBER PRODUCTION METHOD
Publication number
20200398368
Publication date
Dec 24, 2020
JFE STEEL CORPORATION
Chikaumi SAWANISHI
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Information
Patent Application
FRICTION STIR WELDING METHOD AND APPARATUS FOR STRUCTURAL STEEL
Publication number
20200306871
Publication date
Oct 1, 2020
JFE STEEL CORPORATION
Muneo MATSUSHITA
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Information
Patent Application
RESISTANCE SPOT WELDING METHOD
Publication number
20200269342
Publication date
Aug 27, 2020
JFE STEEL CORPORATION
Koichi TANIGUCHI
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Information
Patent Application
DOUBLE-SIDE FRICTION STIR WELDING METHOD AND DOUBLE-SIDE FRICTION S...
Publication number
20200238434
Publication date
Jul 30, 2020
JFE STEEL CORPORATION
Muneo Matsushita
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Information
Patent Application
RESISTANCE SPOT WELDING METHOD
Publication number
20200230735
Publication date
Jul 23, 2020
JFE STEEL CORPORATION
Koichi Taniguchi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
DOUBLE-SIDED FRICTION STIR WELDING METHOD FOR METAL SHEETS AND DOUB...
Publication number
20200215644
Publication date
Jul 9, 2020
JFE STEEL CORPORATION
Muneo Matsushita
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
RESISTANCE SPOT WELDING METHOD
Publication number
20190344376
Publication date
Nov 14, 2019
JFE STEEL CORPORATION
Chikaumi SAWANISHI
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Information
Patent Application
GAS-SHIELDED ARC WELDING METHOD AND METHOD FOR MANUFACTURING WELDED...
Publication number
20190232417
Publication date
Aug 1, 2019
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
Minoru MIYATA
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Information
Patent Application
AUTOMOTIVE MEMBER HAVING RESISTANCE WELD
Publication number
20190201999
Publication date
Jul 4, 2019
JFE STEEL CORPORATION
Katsutoshi Takashima
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
HIGH-STRENGTH STEEL SHEET AND METHOD FOR PRODUCING SAME
Publication number
20190161822
Publication date
May 30, 2019
JFE STEEL CORPORATION
Katsutoshi TAKASHIMA
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
FRICTION STIR WELDING METHOD AND APPARATUS FOR STRUCTURAL STEEL
Publication number
20190111514
Publication date
Apr 18, 2019
JFE STEEL CORPORATION
Muneo Matsushita
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Information
Patent Application
RESISTANCE SPOT WELDING METHOD AND WELDED MEMBER PRODUCTION METHOD
Publication number
20190001429
Publication date
Jan 3, 2019
JFE STEEL CORPORATION
Chikaumi Sawanishi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
RESISTANCE SPOT WELDING METHOD
Publication number
20180281102
Publication date
Oct 4, 2018
JFE STEEL CORPORATION
Chikaumi SAWANISHI
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Information
Patent Application
RESISTANCE SPOT WELDING METHOD AND WELDED MEMBER PRODUCTION METHOD
Publication number
20180257165
Publication date
Sep 13, 2018
JFE STEEL CORPORATION
Chikaumi SAWANISHI
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
RESISTANCE SPOT WELDING METHOD AND METHOD FOR MANUFACTURING RESISTA...
Publication number
20180043459
Publication date
Feb 15, 2018
JFE STEEL CORPORATION
Chikaumi SAWANISHI
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
RESISTANCE SPOT WELDING DEVICE
Publication number
20180043461
Publication date
Feb 15, 2018
JFE STEEL CORPORATION
Koichi Taniguchi
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Information
Patent Application
FRICTION STIR WELDING APPARATUS FOR STRUCTURAL STEEL
Publication number
20180043466
Publication date
Feb 15, 2018
JFE STEEL CORPORATION
Muneo MATSUSHITA
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Information
Patent Application
RESISTANCE SPOT WELDING METHOD AND WELD JOINT
Publication number
20180038402
Publication date
Feb 8, 2018
JFE STEEL CORPORATION
Koichi Taniguchi
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Information
Patent Application
HOT-PRESSED MEMBER AND MANUFACTURING METHOD THEREFOR
Publication number
20180030568
Publication date
Feb 1, 2018
JFE STEEL CORPORATION
Yasuaki OKITA
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL SHEET ASSEMBLY, METHOD OF MANUFACTURING STEEL SHEET ASSEMBLY,...
Publication number
20170348790
Publication date
Dec 7, 2017
JFE STEEL CORPORATION
Hiroshi Matsuda
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
RESISTANCE SPOT WELDING METHOD
Publication number
20170312846
Publication date
Nov 2, 2017
JFE STEEL CORPORATION
Chikaumi Sawanishi
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