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Fuminori Okada
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Itami-shi, JP
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last 30 patents
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Patent Application
STEEL WIRE AND SPRING
Publication number
20220307115
Publication date
Sep 29, 2022
Sumitomo Electric Industries, Ltd.
Tetsuya NAKAJIMA
C21 - METALLURGY OF IRON
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Patent Application
STEEL WIRE FOR SPRING, SPRING, METHOD FOR MANUFACTURING STEEL WIRE...
Publication number
20190233912
Publication date
Aug 1, 2019
Sumitomo Electric Industries, Ltd.
Fuminori Okada
C21 - METALLURGY OF IRON