Toshitomo Sugiyama

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for improvement of iron loss of electromagnetic steel she...
- Patent number 4,846,448
- Issue date Jul 11, 1989
- Kawasaki Steel Corporation
- Bunjiro Fukuda
- C21 - METALLURGY OF IRON
Information Patent Grant
Process and apparatus for improvement of iron loss of electromagnet...
- Patent number 4,772,338
- Issue date Sep 20, 1988
- Kawasaki Steel Corporation
- Bunjiro Fukuda
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of producing grain-oriented silicon steel sheets having subs...
- Patent number 4,255,205
- Issue date Mar 10, 1981
- Kawasaki Steel Corporation
- Nobuyuki Morito
- C21 - METALLURGY OF IRON
Information Patent Grant
Method of forming an insulating film on a grain-oriented silicon st...
- Patent number 4,242,155
- Issue date Dec 30, 1980
- Kawasaki Steel Corporation
- Nobuyuki Morito
- C21 - METALLURGY OF IRON