Toyohiko Konno

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Kitakyushu, JP

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Patents Grantslast 30 patents

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
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 4,623,407
- Issue date Nov 18, 1986
- Nippon Steel Corporation
- Yozo Suga
- C21 - METALLURGY OF IRON