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Toshiyasu Ukena
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Himeji, JP
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last 30 patents
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Patent Grant
Process for producing a zinc-plated steel sheet with an ageing resi...
Patent number
4,960,158
Issue date
Oct 2, 1990
Nippon Steel Corporation
Teruaki Yamada
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Patent Grant
Process for producing a cold rolled steel sheet having a good agein...
Patent number
4,931,107
Issue date
Jun 5, 1990
Nippon Steel Corporation
Teruaki Yamada
C21 - METALLURGY OF IRON