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Takahiro Tanae
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Wako-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
Good-workability and high-strength cold-rolled steel sheet excellen...
Patent number
7,678,204
Issue date
Mar 16, 2010
Nippon Steel Corporation
Toshiyuki Katsumi
C21 - METALLURGY OF IRON
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Patent Grant
Manufacturing method of suspension spring for car
Patent number
6,346,157
Issue date
Feb 12, 2002
Showa Corp.
Yoshiyuki Takezawa
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
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Patent Application
Good-workability and high-strength cold-rolled steel sheet excellen...
Publication number
20040144452
Publication date
Jul 29, 2004
Toshiyuki Katsumi
C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR