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Mamoru Ohashi
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Kimitsu, JP
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last 30 patents
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Patent Grant
Method of producing steel having high strength and toughness
Patent number
4,591,396
Issue date
May 27, 1986
Nippon Steel Corporation
Hiroo Mazuda
C21 - METALLURGY OF IRON
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Patent Grant
Method of making wrought high tension steel having superior low tem...
Patent number
4,521,258
Issue date
Jun 4, 1985
Nippon Steel Corporation
Hiroshi Tamehiro
C21 - METALLURGY OF IRON