Ko Matsumura

Follow

Person

Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Semi-process non-oriented electromagnetic steel strip having low co...
- Patent number 5,013,372
- Issue date May 7, 1991
- Kawasaki Steel Corporation
- Atsuhito Honda
- C21 - METALLURGY OF IRON
Information Patent Grant
Semi-processed non-oriented electromagnetic steel strip having low...
- Patent number 4,946,519
- Issue date Aug 7, 1990
- Kawasaki Steel Corporation
- Atsuhito Honda
- C21 - METALLURGY OF IRON
Information Patent Grant
Method for producing an electro-magnetic steel sheet
- Patent number 4,938,806
- Issue date Jul 3, 1990
- Kawasaki Steel Corporation
- Atsuhito Honda
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Cold rolled non-oriented electrical steel sheet
- Patent number 4,293,336
- Issue date Oct 6, 1981
- Kawasaki Steel Corporation
- Ko Matsumura
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Method of producing non-oriented silicon steel sheets having an exc...
- Patent number 4,204,890
- Issue date May 27, 1980
- Kawasaki Steel Corporation
- Toshio Irie
- C21 - METALLURGY OF IRON