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Katsutoshi Takashima
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Chiba, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method for producing hot-rolled steel sheet, method for producing c...
Patent number
11,939,640
Issue date
Mar 26, 2024
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
Information
Patent Grant
Hot-pressed member, cold-rolled steel sheet for hot-pressed member,...
Patent number
11,850,821
Issue date
Dec 26, 2023
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
Information
Patent Grant
Hot-pressed member, method for manufacturing the same, and method f...
Patent number
11,795,520
Issue date
Oct 24, 2023
JFE Steel Corporation
Shimpei Yoshioka
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Resistance spot welding method
Patent number
11,498,150
Issue date
Nov 15, 2022
JFE Steel Corporation
Koichi Taniguchi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Hot-pressed member and method for manufacturing same, and cold-roll...
Patent number
11,420,247
Issue date
Aug 23, 2022
JFE Steel Corporation
Katsutoshi Takashima
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Hot-pressed member and method for manufacturing same, and cold-roll...
Patent number
11,377,709
Issue date
Jul 5, 2022
JFE Steel Corporation
Katsutoshi Takashima
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Hot-pressed steel sheet member and method for producing same
Patent number
11,339,452
Issue date
May 24, 2022
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
Information
Patent Grant
Resistance spot welding method
Patent number
11,298,773
Issue date
Apr 12, 2022
JFE Steel Corporation
Koichi Taniguchi
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Hot-pressed member and method for manufacturing same, and cold-roll...
Patent number
11,293,074
Issue date
Apr 5, 2022
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
Information
Patent Grant
Hot-pressed member and method for manufacturing same, and cold-roll...
Patent number
11,236,406
Issue date
Feb 1, 2022
JFE Steel Corporation
Katsutoshi Takashima
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
High-strength steel sheet and method for manufacturing the same
Patent number
11,193,180
Issue date
Dec 7, 2021
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
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
High-strength cold rolled steel sheet and method for producing the...
Patent number
11,136,644
Issue date
Oct 5, 2021
JFE Steel Corporation
Yoshie Obata
B32 - LAYERED PRODUCTS
Information
Patent Grant
Hot-pressed member and method for manufacturing same, and cold-roll...
Patent number
11,111,558
Issue date
Sep 7, 2021
JFE Steel Corporation
Katsutoshi Takashima
B32 - LAYERED PRODUCTS
Information
Patent Grant
Hot-pressed member and method for manufacturing same, and cold-roll...
Patent number
11,085,101
Issue date
Aug 10, 2021
JFE Steel Corporation
Katsutoshi Takashima
B32 - LAYERED PRODUCTS
Information
Patent Grant
Steel sheet and plated steel sheet, method for producing steel shee...
Patent number
10,961,600
Issue date
Mar 30, 2021
JFE Steel Corporation
Katsutoshi Takashima
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Automotive member having resistance weld
Patent number
10,940,556
Issue date
Mar 9, 2021
JFE Steel Corporation
Katsutoshi Takashima
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Steel sheet and plated steel sheet, method for producing hot-rolled...
Patent number
10,920,293
Issue date
Feb 16, 2021
JFE Steel Corporation
Katsutoshi Takashima
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Steel sheet and plated steel sheet, method for producing hot-rolled...
Patent number
10,900,096
Issue date
Jan 26, 2021
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
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
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
High-strength cold-rolled steel sheet and method for manufacturing...
Patent number
10,590,504
Issue date
Mar 17, 2020
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
Information
Patent Grant
High-yield-ratio high-strength cold-rolled steel sheet and method o...
Patent number
10,435,762
Issue date
Oct 8, 2019
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
Information
Patent Grant
High-strength cold-rolled steel sheet with excellent material homog...
Patent number
10,329,636
Issue date
Jun 25, 2019
JFE Steel Corporation
Katsutoshi Takashima
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
High-yield-ratio, high-strength cold-rolled steel sheet and product...
Patent number
10,253,389
Issue date
Apr 9, 2019
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
Information
Patent Grant
High-strength cold-rolled steel sheet and method for manufacturing...
Patent number
10,174,396
Issue date
Jan 8, 2019
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
Information
Patent Grant
High-yield-ratio, high-strength cold rolled steel sheet and product...
Patent number
10,156,005
Issue date
Dec 18, 2018
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
Information
Patent Grant
High strength cold rolled steel sheet with low yield ratio and meth...
Patent number
10,144,996
Issue date
Dec 4, 2018
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
Information
Patent Grant
High-strength cold-rolled steel sheet and method of manufacturing t...
Patent number
10,077,486
Issue date
Sep 18, 2018
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
Information
Patent Grant
High strength cold rolled steel sheet with high yield ratio and met...
Patent number
9,994,941
Issue date
Jun 12, 2018
JFE Steel Corporation
Katsutoshi Takashima
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
CLAD STEEL PLATE, MEMBER, AND PRODUCTION METHODS FOR SAME
Publication number
20240158884
Publication date
May 16, 2024
JFE STEEL CORPORATION
Yoshiyasu KAWASAKI
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
CLAD STEEL PLATE, MEMBER, AND PRODUCTION METHODS FOR SAME
Publication number
20240150876
Publication date
May 9, 2024
JFE STEEL CORPORATION
Yoshiyasu KAWASAKI
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Fe-BASED ELECTROPLATED STEEL SHEET, ELECTRODEPOSITION-COATED STEEL...
Publication number
20240117517
Publication date
Apr 11, 2024
JFE STEEL CORPORATION
Shunsuke YAMAMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-STRENGTH COLD-ROLLED STEEL SHEET AND METHOD FOR MANUFACTURING...
Publication number
20240110264
Publication date
Apr 4, 2024
JFE STEEL CORPORATION
Lingling Yang
C21 - METALLURGY OF IRON
Information
Patent Application
Fe-BASED ELECTROPLATED STEEL SHEET AND GALVANNEALED STEEL SHEET, AN...
Publication number
20240009962
Publication date
Jan 11, 2024
JFE STEEL CORPORATION
Shunsuke YAMAMOTO
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
GALVANIZED STEEL SHEET, ELECTRODEPOSITION-COATED STEEL SHEET, AUTOM...
Publication number
20230407447
Publication date
Dec 21, 2023
JFE STEEL CORPORATION
Shunsuke YAMAMOTO
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
GALVANNEALED STEEL SHEET, ELECTRODEPOSITION-COATED STEEL SHEET, AUT...
Publication number
20230407484
Publication date
Dec 21, 2023
JFE STEEL CORPORATION
Shunsuke YAMAMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
ALLOYED GALVANIZED STEEL SHEET, ELECTRODEPOSITION-COATED STEEL SHEE...
Publication number
20230407485
Publication date
Dec 21, 2023
JFE STEEL CORPORATION
Shunsuke YAMAMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
FE-BASED ELECTROPLATED STEEL SHEET, ELECTRODEPOSITION-COATED STEEL...
Publication number
20230407506
Publication date
Dec 21, 2023
JFE STEEL CORPORATION
Shunsuke YAMAMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
GALVANIZED STEEL SHEET, ELECTRODEPOSITION-COATED STEEL SHEET, AUTOM...
Publication number
20230374639
Publication date
Nov 23, 2023
JFE STEEL CORPORATION
Shunsuke YAMAMOTO
C21 - METALLURGY OF IRON
Information
Patent Application
PROJECTION WELDED JOINT AND PROJECTION WELDING METHOD
Publication number
20230347440
Publication date
Nov 2, 2023
JFE STEEL CORPORATION
Daiki YAMAGISHI
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
HOT-PRESSED MEMBER AND METHOD FOR PRODUCING THE SAME
Publication number
20230295762
Publication date
Sep 21, 2023
JFE STEEL CORPORATION
Katsutoshi TAKASHIMA
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH-STRENGTH THIN STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Publication number
20220275471
Publication date
Sep 1, 2022
JFE STEEL CORPORATION
Katsutoshi TAKASHIMA
C21 - METALLURGY OF IRON
Information
Patent Application
HOT-PRESSED MEMBER, COLD-ROLLED STEEL SHEET FOR HOT PRESSING, AND M...
Publication number
20220186339
Publication date
Jun 16, 2022
JFE STEEL CORPORATION
Katsutoshi TAKASHIMA
C21 - METALLURGY OF IRON
Information
Patent Application
HOT PRESS MEMBER, PRODUCTION METHOD FOR STEEL SHEET FOR HOT PRESS,...
Publication number
20220177992
Publication date
Jun 9, 2022
JFE STEEL CORPORATION
Yoshie OBATA
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
HOT-PRESSED MEMBER, COLD-ROLLED STEEL SHEET FOR HOT-PRESSED MEMBER,...
Publication number
20220118741
Publication date
Apr 21, 2022
JFE STEEL CORPORATION
Katsutoshi Takashima
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
HIGH-STRENGTH COLD-ROLLED STEEL SHEET AND PRODUCTION METHOD FOR SAME
Publication number
20220064752
Publication date
Mar 3, 2022
JFE STEEL CORPORATION
Yoshie Obata
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
HOT-PRESSED MEMBER, METHOD FOR MANUFACTURING THE SAME, AND METHOD F...
Publication number
20220056552
Publication date
Feb 24, 2022
JFE STEEL CORPORATION
Shimpei YOSHIOKA
B32 - LAYERED PRODUCTS
Information
Patent Application
SPOT WELDED MEMBER
Publication number
20220049330
Publication date
Feb 17, 2022
JFE STEEL CORPORATION
Minoru Tanaka
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
STEEL SHEET AND METHOD FOR PRODUCING SAME
Publication number
20210324492
Publication date
Oct 21, 2021
JFE STEEL CORPORATION
Yoshihiko ONO
B32 - LAYERED PRODUCTS
Information
Patent Application
HIGH-STRENGTH STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME
Publication number
20210207234
Publication date
Jul 8, 2021
JFE STEEL CORPORATION
Katsutoshi Takashima
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING HOT-ROLLED STEEL SHEET, METHOD FOR PRODUCING C...
Publication number
20210180151
Publication date
Jun 17, 2021
JFE STEEL CORPORATION
Katsutoshi Takashima
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
HOT-PRESSED STEEL SHEET MEMBER AND METHOD FOR PRODUCING SAME
Publication number
20210130919
Publication date
May 6, 2021
JFE STEEL CORPORATION
Katsutoshi TAKASHIMA
B32 - LAYERED PRODUCTS
Information
Patent Application
HOT-PRESSED MEMBER AND METHOD FOR MANUFACTURING SAME, AND COLD-ROLL...
Publication number
20200370140
Publication date
Nov 26, 2020
JFE STEEL CORPORATION
Katsutoshi TAKASHIMA
B32 - LAYERED PRODUCTS
Information
Patent Application
HOT-PRESSED MEMBER AND METHOD FOR MANUFACTURING SAME, AND COLD-ROLL...
Publication number
20200354806
Publication date
Nov 12, 2020
JFE STEEL CORPORATION
Katsutoshi TAKASHIMA
B32 - LAYERED PRODUCTS
Information
Patent Application
HOT-PRESSED MEMBER AND METHOD FOR MANUFACTURING SAME, AND COLD-ROLL...
Publication number
20200353527
Publication date
Nov 12, 2020
JFE STEEL CORPORATION
Katsutoshi TAKASHIMA
B32 - LAYERED PRODUCTS
Information
Patent Application
HOT-PRESSED STEEL SHEET MEMBER AND METHOD FOR PRODUCING SAME
Publication number
20200332382
Publication date
Oct 22, 2020
JFE STEEL CORPORATION
Katsutoshi TAKASHIMA
C21 - METALLURGY OF IRON
Information
Patent Application
RESISTANCE SPOT WELDING METHOD
Publication number
20200269342
Publication date
Aug 27, 2020
JFE STEEL CORPORATION
Koichi TANIGUCHI
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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
HOT-PRESSED MEMBER AND METHOD FOR MANUFACTURING SAME, AND COLD-ROLL...
Publication number
20200172991
Publication date
Jun 4, 2020
JFE STEEL CORPORATION
Katsutoshi TAKASHIMA
C21 - METALLURGY OF IRON