Masana Imagumbai

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Kisarazu, JP

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Patents Grantslast 30 patents

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Method of producing high tensile-high toughness steel
- Patent number 4,790,885
- Issue date Dec 13, 1988
- Nippon Steel Corporation
- Masana Imagumbai
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing high-tension bainitic steel having high-tough...
- Patent number 4,219,371
- Issue date Aug 26, 1980
- Nippon Steel Corporation
- Hajime Nakasugi
- C21 - METALLURGY OF IRON