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Hisayoshi Yatoh
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Tokyo, JP
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last 30 patents
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Patent Grant
Cold rolled steel having excellent machinability and production the...
Patent number
5,558,726
Issue date
Sep 24, 1996
Nippon Steel Corporation
Hisayoshi Yatoh
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
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Patent Application
STEEL SHEET AND ENAMELED PRODUCT
Publication number
20230160046
Publication date
May 25, 2023
NIPPON STEEL CORPORATION
Nobuo YOSHIKAWA
C21 - METALLURGY OF IRON
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Patent Application
CARBON STEEL SHEET HAVING EXCELLENT CARBURIZATION PROPERTIES, AND M...
Publication number
20120006451
Publication date
Jan 12, 2012
NIPPON STEEL CORPORATION
Masayuki Abe
C21 - METALLURGY OF IRON