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Kazukuni Hase
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Chiyoda-ku, Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Steel material for line pipes, method for producing the same, and m...
Patent number
11,401,568
Issue date
Aug 2, 2022
JFE Steel Corporation
Kyono Yasuda
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for selecting rail steel and wheel steel
Patent number
11,401,591
Issue date
Aug 2, 2022
JFE Steel Corporation
Minoru Honjo
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel material for high heat input welding
Patent number
11,326,238
Issue date
May 10, 2022
JFE Steel Corporation
Yuki Toji
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Steel plate and method of producing same
Patent number
11,299,798
Issue date
Apr 12, 2022
JFE Steel Corporation
Yoshiko Takeuchi
C21 - METALLURGY OF IRON
Information
Patent Grant
Steel plate for high-strength and high-toughness steel pipes and me...
Patent number
11,236,405
Issue date
Feb 1, 2022
JFE Steel Corporation
Hideyuki Kimura
C21 - METALLURGY OF IRON
Information
Patent Grant
Case hardening steel, method of producing case hardening steel, and...
Patent number
11,174,543
Issue date
Nov 16, 2021
JFE Steel Corporation
Keisuke Ando
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Abrasion-resistant steel plate and method of producing abrasion-res...
Patent number
11,118,240
Issue date
Sep 14, 2021
JFE STEEL CORPORATON
Yusuke Terazawa
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Method for producing rail
Patent number
11,111,555
Issue date
Sep 7, 2021
JFE Steel Corporation
Minoru Honjo
C21 - METALLURGY OF IRON
Information
Patent Grant
Abrasion-resistant steel plate and method of producing abrasion-res...
Patent number
11,111,556
Issue date
Sep 7, 2021
JFE Steel Corporation
Yusuke Terazawa
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Abrasion-resistant steel plate and method of manufacturing same
Patent number
11,060,172
Issue date
Jul 13, 2021
JFE Steel Corporation
Naoki Takayama
C21 - METALLURGY OF IRON
Information
Patent Grant
Abrasion-resistant steel plate and method of producing abrasion-res...
Patent number
11,035,018
Issue date
Jun 15, 2021
JFE Steel Corporation
Yusuke Terazawa
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Abrasion-resistant steel plate and method of producing abrasion-res...
Patent number
11,035,017
Issue date
Jun 15, 2021
JFE Steel Corporation
Yusuke Terazawa
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Deformed reinforcing bar
Patent number
10,774,534
Issue date
Sep 15, 2020
JFE Steel Corporation
Kiyoshi Uwai
E04 - BUILDING
Information
Patent Grant
Thick steel plate having good multipass weld joint CTOD characteris...
Patent number
10,450,627
Issue date
Oct 22, 2019
JFE Steel Corporation
Katsuyuki Ichimiya
C21 - METALLURGY OF IRON
Information
Patent Grant
High toughness and high tensile strength thick steel plate and prod...
Patent number
10,443,110
Issue date
Oct 15, 2019
JFE Steel Corporation
Shigeki Kitsuya
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Steel plate and method of producing same
Patent number
10,358,688
Issue date
Jul 23, 2019
JFE Steel Corporation
Shigeki Kitsuya
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
High toughness and high tensile strength thick steel plate with exc...
Patent number
10,351,926
Issue date
Jul 16, 2019
JFE Steel Corporation
Yota Kuronuma
C21 - METALLURGY OF IRON
Information
Patent Grant
High-tensile-strength steel plate and process for producing same
Patent number
10,316,385
Issue date
Jun 11, 2019
JFE Steel Corporation
Katsuyuki Ichimiya
C21 - METALLURGY OF IRON
Information
Patent Grant
Weld joint
Patent number
10,300,564
Issue date
May 28, 2019
JFE Steel Corporation
Katsuyuki Ichimiya
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Thick steel sheet having excellent CTOD properties in multilayer we...
Patent number
10,036,079
Issue date
Jul 31, 2018
JFE Steel Corporation
Yusuke Terazawa
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Thick steel sheet having excellent CTOD properties in multilayer we...
Patent number
10,023,946
Issue date
Jul 17, 2018
JFE Steel Corporation
Yusuke Terazawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Thick, tough, high tensile strength steel plate and production meth...
Patent number
10,000,833
Issue date
Jun 19, 2018
JFE Steel Corporation
Shigeki Kitsuya
C21 - METALLURGY OF IRON
Information
Patent Grant
Spring steel and method for manufacturing the same
Patent number
9,618,070
Issue date
Apr 11, 2017
JFE Steel Corporation
Minoru Honjo
C21 - METALLURGY OF IRON
Information
Patent Grant
Bearing steel and ingot material for bearing having excellent rolli...
Patent number
9,139,887
Issue date
Sep 22, 2015
JFE Steel Corporation
Minoru Honjo
C21 - METALLURGY OF IRON
Information
Patent Grant
Spring steel and method for manufacturing the same
Patent number
8,608,874
Issue date
Dec 17, 2013
JFE Steel Corporation
Minoru Honjo
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for producing bearing device for wheel
Patent number
8,302,309
Issue date
Nov 6, 2012
NTN Corporation
Isao Hirai
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Hot forging facility
Patent number
7,827,842
Issue date
Nov 9, 2010
JFE Steel Corporation
Kazukuni Hase
C21 - METALLURGY OF IRON
Information
Patent Grant
Hot forged product with excellent fatigue strength, method for maki...
Patent number
7,806,992
Issue date
Oct 5, 2010
JFE Steel Corporation
Kazukuni Hase
C21 - METALLURGY OF IRON
Information
Patent Grant
Non-refined steel being reduced in anisotropy of material and excel...
Patent number
6,454,881
Issue date
Sep 24, 2002
Kawasaki Steel Corporation
Kazukuni Hase
C21 - METALLURGY OF IRON
Information
Patent Grant
High-strength and high-toughness non heat-treated steel having exce...
Patent number
6,162,389
Issue date
Dec 19, 2000
Kawasaki Steel Corporation
Kazukuni Hase
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
STEEL MATERIAL FOR HIGH HEAT INPUT WELDING
Publication number
20210140023
Publication date
May 13, 2021
JFE STEEL CORPORATION
Yuki Toji
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
STEEL MATERIAL FOR LINE PIPES, METHOD FOR PRODUCING THE SAME, AND M...
Publication number
20210054471
Publication date
Feb 25, 2021
JFE STEEL CORPORATION
Kyono Yasuda
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
STEEL MATERIAL FOR LINE PIPES, METHOD FOR PRODUCING THE SAME, AND M...
Publication number
20210032732
Publication date
Feb 4, 2021
JFE STEEL CORPORATION
Kyono Yasuda
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR PRODUCING RAIL
Publication number
20200277682
Publication date
Sep 3, 2020
JFE STEEL CORPORATION
Minoru HONJO
C21 - METALLURGY OF IRON
Information
Patent Application
ABRASION-RESISTANT STEEL PLATE AND METHOD OF MANUFACTURING SAME
Publication number
20200248290
Publication date
Aug 6, 2020
JFE STEEL CORPORATION
Naoki TAKAYAMA
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL PLATE AND METHOD OF PRODUCING SAME
Publication number
20200115782
Publication date
Apr 16, 2020
JFE STEEL CORPORATION
Yoshiko TAKEUCHI
C21 - METALLURGY OF IRON
Information
Patent Application
RAIL AND METHOD FOR PRODUCING SAME
Publication number
20200002780
Publication date
Jan 2, 2020
JFE STEEL CORPORATION
Minoru HONJO
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
STEEL MATERIAL FOR HIGH HEAT INPUT WELDING
Publication number
20190352749
Publication date
Nov 21, 2019
JFE STEEL CORPORATION
Koichi NAKASHIMA
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
CASE HARDENING STEEL, METHOD OF PRODUCING CASE HARDENING STEEL, AND...
Publication number
20190352762
Publication date
Nov 21, 2019
JFE STEEL CORPORATION
Keisuke ANDO
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
METHOD FOR MANUFACTURING RAILWAY VEHICLE WHEEL
Publication number
20190338402
Publication date
Nov 7, 2019
JFE STEEL CORPORATION
Tatsumi KIMURA
B60 - VEHICLES IN GENERAL
Information
Patent Application
ABRASION-RESISTANT STEEL PLATE AND METHOD OF PRODUCING ABRASION-RES...
Publication number
20190309384
Publication date
Oct 10, 2019
JFE STEEL CORPORATION
Yusuke TERAZAWA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR SELECTING RAIL STEEL AND WHEEL STEEL
Publication number
20190249280
Publication date
Aug 15, 2019
JFE STEEL CORPORATION
Minoru HONJO
C21 - METALLURGY OF IRON
Information
Patent Application
ABRASION-RESISTANT STEEL PLATE AND METHOD OF PRODUCING ABRASION-RES...
Publication number
20190203314
Publication date
Jul 4, 2019
JFE STEEL CORPORATION
Yusuke TERAZAWA
B22 - CASTING POWDER METALLURGY
Information
Patent Application
ABRASION-RESISTANT STEEL PLATE AND METHOD OF PRODUCING ABRASION-RES...
Publication number
20190119772
Publication date
Apr 25, 2019
JFE STEEL CORPORATION
Yusuke TERAZAWA
B22 - CASTING POWDER METALLURGY
Information
Patent Application
ABRASION-RESISTANT STEEL PLATE AND METHOD OF PRODUCING ABRASION-RES...
Publication number
20190062860
Publication date
Feb 28, 2019
JFE STEEL CORPORATION
Yusuke TERAZAWA
C21 - METALLURGY OF IRON
Information
Patent Application
DEFORMED REINFORCING BAR
Publication number
20190048590
Publication date
Feb 14, 2019
JFE STEEL CORPORATION
Kiyoshi UWAI
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL PLATE FOR HIGH-STRENGTH AND HIGH-TOUGHNESS STEEL PIPES AND ME...
Publication number
20190040488
Publication date
Feb 7, 2019
JFE STEEL CORPORATION
Hideyuki Kimura
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH TOUGHNESS AND HIGH TENSILE STRENGTH THICK STEEL PLATE WITH EXC...
Publication number
20180155805
Publication date
Jun 7, 2018
JFE STEEL CORPORATION
Yota KURONUMA
C21 - METALLURGY OF IRON
Information
Patent Application
THICK-WALLED HIGH-TOUGHNESS HIGH-STRENGTH STEEL PLATE AND METHOD FO...
Publication number
20170369958
Publication date
Dec 28, 2017
JFE STEEL CORPORATION
Shigeki KITSUYA
C21 - METALLURGY OF IRON
Information
Patent Application
THICK STEEL PLATE HAVING GOOD MULTIPASS WELD JOINT CTOD CHARACTERIS...
Publication number
20170275727
Publication date
Sep 28, 2017
JFE STEEL CORPORATION
Katsuyuki ICHIMIYA
C21 - METALLURGY OF IRON
Information
Patent Application
RAILWAY VEHICLE WHEEL AND METHOD FOR MANUFACTURING RAILWAY VEHICLE...
Publication number
20170191149
Publication date
Jul 6, 2017
JFE STEEL CORPORATION
Tatsumi KIMURA
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
WELD JOINT
Publication number
20170173743
Publication date
Jun 22, 2017
JFE STEEL CORPORATION
Katsuyuki Ichimiya
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
HIGH-TENSILE-STRENGTH STEEL PLATE AND PROCESS FOR PRODUCING SAME
Publication number
20170137905
Publication date
May 18, 2017
JFE STEEL CORPORATION
Katsuyuki Ichimiya
C21 - METALLURGY OF IRON
Information
Patent Application
HIGH TOUGHNESS AND HIGH TENSILE STRENGTH THICK STEEL PLATE AND PROD...
Publication number
20170088913
Publication date
Mar 30, 2017
JFE STEEL CORPORATION
Shigeki Kitsuya
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL PLATE AND METHOD OF PRODUCING SAME
Publication number
20170044639
Publication date
Feb 16, 2017
JFE STEEL CORPORATION
Shigeki Kitsuya
C21 - METALLURGY OF IRON
Information
Patent Application
STEEL PLATE AND METHOD FOR MANUFACTURING SAME (AS AMENDED)
Publication number
20160312327
Publication date
Oct 27, 2016
JFE STEEL CORPORATION
Katsuyuki Ichimiya
C21 - METALLURGY OF IRON
Information
Patent Application
THICK STEEL SHEET HAVING EXCELLENT CTOD PROPERTIES IN MULTILAYER WE...
Publication number
20160040274
Publication date
Feb 11, 2016
JFE STEEL CORPORATION
Yusuke Terazawa
C21 - METALLURGY OF IRON
Information
Patent Application
THICK STEEL SHEET HAVING EXCELLENT CTOD PROPERTIES IN MULTILAYER WE...
Publication number
20160017456
Publication date
Jan 21, 2016
JFE STEEL CORPORATION
Yusuke Terazawa
C21 - METALLURGY OF IRON
Information
Patent Application
THICK, TOUGH, HIGH TENSILE STRENGTH STEEL PLATE AND PRODUCTION METH...
Publication number
20160010192
Publication date
Jan 14, 2016
JFE STEEL CORPORATION
Shigeki Kitsuya
C21 - METALLURGY OF IRON
Information
Patent Application
SPRING STEEL AND METHOD FOR MANUFACTURING THE SAME
Publication number
20140060706
Publication date
Mar 6, 2014
JFE STEEL CORPORATION
Minoru Honjo
C21 - METALLURGY OF IRON