Shunji Hamada

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Powder feeder
- Patent number 4,733,619
- Issue date Mar 29, 1988
- Ube Industries
- Sadahiko Maeda
- C21 - METALLURGY OF IRON
Information Patent Grant
Apparatus for blowing powdery refining agent into refining vessel
- Patent number 4,613,113
- Issue date Sep 23, 1986
- Kawasaki Steel Corporation
- Sadayuki Saito
- C21 - METALLURGY OF IRON