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Method for manufacturing steel sheet
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Patent number 9,211,574
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Issue date Dec 15, 2015
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Nippon Steel & Sumitomo Metal Corporation
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Tooru Akashi
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Cooling device of hot-rolled steel strip
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Patent number 8,920,708
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Issue date Dec 30, 2014
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Nippon Steel & Sumitomo Metal Corporation
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Yoshihiro Serizawa
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Cooling method of hot-rolled steel strip
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Patent number 8,414,716
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Issue date Apr 9, 2013
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Nippon Steel & Sumitomo Metal Corporation
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Yoshihiro Serizawa
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Method of cooling steel plate
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Patent number 7,718,018
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Issue date May 18, 2010
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Nippon Steel Corporation
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Yoshihiro Serizawa
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Hot strip rolling mill
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Patent number 5,921,127
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Issue date Jul 13, 1999
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Nippon Steel Corporation
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Shigeru Ogawa
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Twin-roll continuous casting method
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Patent number 5,901,777
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Issue date May 11, 1999
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Nippon Steel Corporation
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Yoshikazu Matsumura
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...