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Yoshikuni Tokunaga
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Tokai, JP
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last 30 patents
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Patent Grant
Process for producing deep-drawing cold rolled steel sheets and strips
Patent number
4,551,182
Issue date
Nov 5, 1985
Nippon Steel Corporation
Osamu Akisue
C21 - METALLURGY OF IRON
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Patent Grant
Method for the production of cold rolled steel sheet having super d...
Patent number
4,504,326
Issue date
Mar 12, 1985
Nippon Steel Corporation
Yoshikuni Tokunaga
C21 - METALLURGY OF IRON