Masayuki Arai

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Muroran, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ladle refining apparatus and ladle refining method using it
- Patent number 6,666,902
- Issue date Dec 23, 2003
- Nippon Steel Corporation
- Hideaki Kimura
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing steel by converter
- Patent number 5,868,817
- Issue date Feb 9, 1999
- Nippon Steel Corporation
- Masataka Yano
- C21 - METALLURGY OF IRON