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Kitakyushu, JP
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last 30 patents
Information
Patent Grant
Grain oriented electrical steel sheet having specular surface
Patent number
5,782,998
Issue date
Jul 21, 1998
Nippon Steel Corporation
Yoshiyuki Ushigami
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for producing ultrahigh silicon electrical thin steel sheet...
Patent number
5,614,034
Issue date
Mar 25, 1997
Nippon Steel Corporation
Yozo Suga
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for production of grain oriented electrical steel sheet hav...
Patent number
5,545,263
Issue date
Aug 13, 1996
Nippon Steel Corporation
Yasunari Yoshitomi
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for producing grain-oriented electrical steel sheet having...
Patent number
5,478,410
Issue date
Dec 26, 1995
Nippon Steel Corporation
Yoshiyuki Ushigami
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for manufacturing double oriented electrical steel sheet ha...
Patent number
5,370,748
Issue date
Dec 6, 1994
Nippon Steel Corporation
Yozo Suga
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for manufacturing double oriented electrical steel sheet ha...
Patent number
5,346,559
Issue date
Sep 13, 1994
Nippon Steel Corporation
Yoshiyuki Ushigami
C21 - METALLURGY OF IRON
Information
Patent Grant
Ultrahigh silicon, grain-oriented electrical steel sheet and proces...
Patent number
5,308,411
Issue date
May 3, 1994
Nippon Steel Corporation
Yozo Suga
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process for preparation of grain-oriented electrical steel sheet ha...
Patent number
5,261,971
Issue date
Nov 16, 1993
Nippon Steel Corporation
Yasunari Yoshitomi
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for producing non-oriented electromagnetic steel sheet havi...
Patent number
5,259,892
Issue date
Nov 9, 1993
Nippon Steel Corporation
Takeshi Kubota
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for producing grain-oriented electrical steel sheet having...
Patent number
5,145,533
Issue date
Sep 8, 1992
Nippon Steel Corporation
Yasunari Yoshitomi
C21 - METALLURGY OF IRON
Information
Patent Grant
Method of producing oriented electrical steel sheet having superior...
Patent number
5,082,509
Issue date
Jan 21, 1992
Nippon Steel Corporation
Yoshiyuki Ushigami
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for preparing unidirectional silicon steel sheet having hig...
Patent number
5,049,205
Issue date
Sep 17, 1991
Nippon Steel Corporation
Nobuyuki Takahashi
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for production of double-oriented electrical steel sheet ha...
Patent number
4,997,493
Issue date
Mar 5, 1991
Nippon Steel Corporation
Yoshiyuki Ushigami
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for production of grain oriented electrical steel sheet hav...
Patent number
4,994,120
Issue date
Feb 19, 1991
Nippon Steel Corporation
Nobuyuki Takahashi
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for production of grain oriented electrical steel sheet hav...
Patent number
4,938,807
Issue date
Jul 3, 1990
Nippon Steel Corporation
Nobuyuki Takahashi
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing a grain-oriented electrical steel sheet
Patent number
4,929,286
Issue date
May 29, 1990
Nippon Steel Corporation
Hajime Komatsu
C21 - METALLURGY OF IRON
Information
Patent Grant
Annealing separator used in the finishing annealing step for produc...
Patent number
4,632,708
Issue date
Dec 30, 1986
Nippon Steel Corporation
Toyohiko Konno
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing a grain-oriented electrical steel sheet having...
Patent number
4,623,406
Issue date
Nov 18, 1986
Nippon Steel Corporation
Yozo Suga
C21 - METALLURGY OF IRON
Information
Patent Grant
Method for producing a grain-oriented electrical steel sheet having...
Patent number
4,623,407
Issue date
Nov 18, 1986
Nippon Steel Corporation
Yozo Suga
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for producing a grain-oriented electromagnetic steel sheet...
Patent number
4,592,789
Issue date
Jun 3, 1986
Nippon Steel Corporation
Yakichiro Kawamo
C21 - METALLURGY OF IRON
Information
Patent Grant
Process for producing a grain-oriented silicon steel sheet or strip...
Patent number
4,437,909
Issue date
Mar 20, 1984
Nippon Steel Corporation
Kensuke Mori
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method for treating an electromagnetic steel sheet and an electroma...
Patent number
4,363,677
Issue date
Dec 14, 1982
Nippon Steel Corporation
Tadashi Ichiyama
C21 - METALLURGY OF IRON
Information
Patent Grant
Continuously cast slabs for producing grain-oriented electrical ste...
Patent number
4,108,694
Issue date
Aug 22, 1978
Nippon Steel Corporation
Morio Shiozaki
B22 - CASTING POWDER METALLURGY