Shin-Ichi Sumi

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Miyagi-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Medium-carbon steel having dispersed fine graphite structure and me...
- Patent number 6,174,384
- Issue date Jan 16, 2001
- Agency of Industrial Science & Technology
- Katsunari Oikawa
- C21 - METALLURGY OF IRON