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Junichi Okamoto
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Electric welded boiler steel pipe
Patent number
6,406,564
Issue date
Jun 18, 2002
Nippon Steel Corporation
Taro Muraki
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
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Patent Application
High Strength Seamless Steel Pipe for Machine Structure Use Superio...
Publication number
20090065102
Publication date
Mar 12, 2009
NIPPON STEEL CORPORATION
Yasuhiro Shinohara
C21 - METALLURGY OF IRON