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Hyogo, JP
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last 30 patents
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Patent Grant
Oriented magnetic steel sheets and manufacturing process therefor
Patent number
5,425,820
Issue date
Jun 20, 1995
Sumitomo Metal Industries, Ltd.
Hiroyoshi Yashiki
C21 - METALLURGY OF IRON
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Patent Grant
Oriented silicon steel sheets and production process therefor
Patent number
5,250,123
Issue date
Oct 5, 1993
Sumitomo Metal Industries, Ltd.
Hiroyoshi Yashiki
C21 - METALLURGY OF IRON