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Tesshu Murakawa
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Non-oriented electrical steel sheet
Patent number
12,195,831
Issue date
Jan 14, 2025
Nippon Steel Corporation
Tesshu Murakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Rotor core, rotor, and rotating electric machine
Patent number
12,142,966
Issue date
Nov 12, 2024
Nippon Steel Corporation
Masahito Kamikawabata
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Non-oriented electrical steel sheet
Patent number
12,024,762
Issue date
Jul 2, 2024
Nippon Steel Corporation
Minako Fukuchi
C21 - METALLURGY OF IRON
Information
Patent Grant
Rotating electrical machine, stator core and rotor core set, method...
Patent number
12,009,709
Issue date
Jun 11, 2024
Nippon Steel Corporation
Tesshu Murakawa
C21 - METALLURGY OF IRON
Information
Patent Grant
Non oriented electrical steel sheet
Patent number
11,952,641
Issue date
Apr 9, 2024
Nippon Steel Corporation
Masaru Takahashi
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Non-oriented electrical steel sheet
Patent number
11,942,246
Issue date
Mar 26, 2024
Nippon Steel Corporation
Minako Fukuchi
C21 - METALLURGY OF IRON
Information
Patent Grant
Non-oriented electrical steel sheet
Patent number
11,279,985
Issue date
Mar 22, 2022
Nippon Steel Corporation
Yoshiaki Natori
C21 - METALLURGY OF IRON
Information
Patent Grant
Non-oriented electrical steel sheet
Patent number
11,111,567
Issue date
Sep 7, 2021
Nippon Steel Corporation
Tesshu Murakawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Non-oriented electrical steel sheet
Patent number
10,214,791
Issue date
Feb 26, 2019
Nippon Steel & Sumitomo Metal Corporation
Masahiro Fujikura
C21 - METALLURGY OF IRON
Information
Patent Grant
Non-oriented electrical steel sheet and manufacturing method thereof
Patent number
9,728,312
Issue date
Aug 8, 2017
Nippon Steel & Sumitomo Metal Corporation
Masahiro Fujikura
C21 - METALLURGY OF IRON
Information
Patent Grant
Non-oriented electrical steel sheet, manufacturing method thereof,...
Patent number
9,721,706
Issue date
Aug 1, 2017
Nippon Steel & Sumitomo Metal Corporation
Masahiro Fujikura
C21 - METALLURGY OF IRON
Information
Patent Grant
Non-oriented electrical steel sheet, method of manufacturing the sa...
Patent number
9,512,500
Issue date
Dec 6, 2016
Nippon Steel & Sumitomo Metal Corporation
Masahiro Fujikura
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
ROTATING ELECTRICAL MACHINE, STATOR CORE AND ROTOR CORE SET, METHOD...
Publication number
20240356417
Publication date
Oct 24, 2024
NIPPON STEEL CORPORATION
Tesshu MURAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Publication number
20240158896
Publication date
May 16, 2024
NIPPON STEEL CORPORATION
Tesshu MURAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
ROTATING ELECTRICAL MACHINE, STATOR CORE AND ROTOR CORE SET, METHOD...
Publication number
20240154472
Publication date
May 9, 2024
NIPPON STEEL CORPORATION
Tesshu MURAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Publication number
20240153683
Publication date
May 9, 2024
NIPPON STEEL CORPORATION
Tesshu MURAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME
Publication number
20240141463
Publication date
May 2, 2024
NIPPON STEEL CORPORATION
Tesshu MURAKAWA
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET, MOTOR CORE, METHOD FOR MANUFAC...
Publication number
20240096531
Publication date
Mar 21, 2024
NIPPON STEEL CORPORATION
Ichiro TANAKA
B32 - LAYERED PRODUCTS
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20240047105
Publication date
Feb 8, 2024
NIPPON STEEL CORPORATION
Tesshu MURAKAWA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20240043970
Publication date
Feb 8, 2024
NIPPON STEEL CORPORATION
Minako FUKUCHI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20240047106
Publication date
Feb 8, 2024
NIPPON STEEL CORPORATION
Minako FUKUCHI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20240035130
Publication date
Feb 1, 2024
NIPPON STEEL CORPORATION
Minako FUKUCHI
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
ROTATING ELECTRICAL MACHINE, STATOR CORE AND ROTOR CORE SET, METHOD...
Publication number
20230353023
Publication date
Nov 2, 2023
NIPPON STEEL CORPORATION
Tesshu MURAKAWA
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET, CORE, COLD-ROLLED STEEL SHEET,...
Publication number
20230106818
Publication date
Apr 6, 2023
NIPPON STEEL CORPORATION
Minako FUKUCHI
C21 - METALLURGY OF IRON
Information
Patent Application
STATOR CORE, ROTARY ELECTRIC MACHINE, AND DESIGN METHOD FOR STATOR...
Publication number
20220407371
Publication date
Dec 22, 2022
NIPPON STEEL CORPORATION
Yasuo OHSUGI
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20220396846
Publication date
Dec 15, 2022
NIPPON STEEL CORPORATION
Tesshu MURAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
LAMINATED CORE AND ELECTRICAL DEVICE
Publication number
20220384085
Publication date
Dec 1, 2022
NIPPON STEEL CORPORATION
Ryu HIRAYAMA
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ROTOR CORE, ROTOR, AND ROTATING ELECTRIC MACHINE
Publication number
20220385118
Publication date
Dec 1, 2022
NIPPON STEEL CORPORATION
Masahito KAMIKAWABATA
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
STATOR CORE AND ROTARY ELECTRIC MACHINE
Publication number
20220385119
Publication date
Dec 1, 2022
NIPPON STEEL CORPORATION
Masahito KAMIKAWABATA
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20220356549
Publication date
Nov 10, 2022
NIPPON STEEL CORPORATION
Tesshu MURAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20220349037
Publication date
Nov 3, 2022
NIPPON STEEL CORPORATION
Tesshu MURAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20220186330
Publication date
Jun 16, 2022
NIPPON STEEL CORPORATION
Tesshu MURAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
NON ORIENTED ELECTRICAL STEEL SHEET
Publication number
20220154304
Publication date
May 19, 2022
NIPPON STEEL CORPORATION
Masaru TAKAHASHI
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20210108296
Publication date
Apr 15, 2021
NIPPON STEEL CORPORATION
Tesshu MURAKAWA
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20200040423
Publication date
Feb 6, 2020
NIPPON STEEL CORPORATION
Yoshiaki NATORI
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREOF
Publication number
20170260598
Publication date
Sep 14, 2017
NIPPON STEEL & SUMITOMO METAL CORPORATION
Masahiro FUJIKURA
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREOF
Publication number
20140238558
Publication date
Aug 28, 2014
Masahiro Fujikura
C21 - METALLURGY OF IRON
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET, METHOD OF MANUFACTURING THE SA...
Publication number
20140113159
Publication date
Apr 24, 2014
Masahiro Fujikura
B32 - LAYERED PRODUCTS
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET, MANUFACTURING METHOD THEREOF,...
Publication number
20130309525
Publication date
Nov 21, 2013
NIPPON STEEL & SUMITOMO METAL CORPORATION
Masahiro Fujikura
B32 - LAYERED PRODUCTS
Information
Patent Application
NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREOF
Publication number
20110039120
Publication date
Feb 17, 2011
Hiroyasu Fujii
C21 - METALLURGY OF IRON