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Tomoji Kumano
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Grain-oriented electrical steel sheet with excellent magnetic chara...
Patent number
11,512,360
Issue date
Nov 29, 2022
Nippon Steel Corporation
Tomoji Kumano
C21 - METALLURGY OF IRON
Information
Patent Grant
Manufacturing method of grain-oriented electrical steel sheet
Patent number
8,303,730
Issue date
Nov 6, 2012
Nippon Steel Corporation
Tomoji Kumano
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of treating steel for grain-oriented electrical steel sheet...
Patent number
8,202,374
Issue date
Jun 19, 2012
Nippon Steel Corporation
Tomoji Kumano
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of production of grain-oriented electrical steel sheet havin...
Patent number
7,976,645
Issue date
Jul 12, 2011
Nippon Steel Corporation
Yoshiyuki Ushigami
C21 - METALLURGY OF IRON
Information
Patent Grant
Grain-oriented electrical steel sheet extremely excellent in magnet...
Patent number
7,857,915
Issue date
Dec 28, 2010
Nippon Steel Corporation
Tomoji Kumano
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of producing grain-oriented electrical steel sheet very exce...
Patent number
7,833,360
Issue date
Nov 16, 2010
Nippon Steel Corporation
Tomoji Kumano
C21 - METALLURGY OF IRON
Information
Patent Grant
Core having superior end face insulation and method of treating cor...
Patent number
7,471,182
Issue date
Dec 30, 2008
Nippon Steel Corporation
Tomoji Kumano
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Core having superior end face insulation and method of treating cor...
Patent number
7,173,509
Issue date
Feb 6, 2007
Nippon Steel Corporation
Tomoji Kumano
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Low iron loss non-oriented electrical steel sheet excellent in work...
Patent number
6,478,892
Issue date
Nov 12, 2002
Nippon Steel Corporation
Ken-ichi Murakami
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing a grain-oriented electrical steel sheet excell...
Patent number
6,432,222
Issue date
Aug 13, 2002
Nippon Steel Corporation
Yoshifumi Ohata
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for producing grain-oriented electrical steel sheet having...
Patent number
5,840,131
Issue date
Nov 24, 1998
Nippon Steel Corporation
Kenichi Yakashiro
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for producing non-oriented electrical steel sheet having hi...
Patent number
5,803,989
Issue date
Sep 8, 1998
Nippon Steel Corporation
Ryutaro Kawamata
C21 - METALLURGY OF IRON
Information
Patent Grant
Annealing separator having excellent reactivity for grain-oriented...
Patent number
5,685,920
Issue date
Nov 11, 1997
Nippon Steel Corporation
Osamu Tanaka
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of producing non-oriented electrical steel sheet having good...
Patent number
5,421,912
Issue date
Jun 6, 1995
Nippon Steel Corporation
Tomoji Kumano
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for producing grain-oriented electrical steel sheet having...
Patent number
4,543,134
Issue date
Sep 24, 1985
Nippon Steel Corporation
Osamu Tanaka
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
Information
Patent Application
GRAIN-ORIENTED ELECTRICAL STEEL SHEET WITH EXCELLENT MAGNETIC CHARA...
Publication number
20210262052
Publication date
Aug 26, 2021
NIPPON STEEL CORPORATION
Tomoji KUMANO
C21 - METALLURGY OF IRON
Information
Patent Application
METHOD OF TREATING STEEL FOR GRAIN-ORIENTED ELECTRICAL STEEL SHEET...
Publication number
20120037277
Publication date
Feb 16, 2012
Tomoji Kumano
C21 - METALLURGY OF IRON
Information
Patent Application
MANUFACTURING METHOD OF GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Publication number
20110155285
Publication date
Jun 30, 2011
Tomoji Kumano
C21 - METALLURGY OF IRON
Information
Patent Application
Method of production of grain-oriented electrical steel sheet havin...
Publication number
20090126832
Publication date
May 21, 2009
Yoshiyuki Ushigami
C21 - METALLURGY OF IRON
Information
Patent Application
Grain-Oriented Electrical Steel Sheet Extremely Excellent in Magnet...
Publication number
20090044881
Publication date
Feb 19, 2009
Tomoji Kumano
C21 - METALLURGY OF IRON
Information
Patent Application
Method of Producing Grain-Oriented Electrical Steel Sheet Very Exce...
Publication number
20090032142
Publication date
Feb 5, 2009
NIPPON STEEL CORPORATION
Tomoji Kumano
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Application
Core having superior end face insulation and method of treating cor...
Publication number
20070188289
Publication date
Aug 16, 2007
NIPPON STEEL CORPORATION
Tomoji Kumano
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Iron core exhibiting excellent insulating property at end face, and...
Publication number
20040046632
Publication date
Mar 11, 2004
Tomoji Kumano
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Method for producing a grain-oriented electrical steel sheet excell...
Publication number
20020007870
Publication date
Jan 24, 2002
Yoshifumi Ohata
C21 - METALLURGY OF IRON
Information
Patent Application
Low iron loss non-oriented electrical steel sheet excellent in work...
Publication number
20010037841
Publication date
Nov 8, 2001
Ken-ichi Murakami
C21 - METALLURGY OF IRON