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Takashi Ichiki
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Itami-shi, JP
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Patents Grants
last 30 patents
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Patent Grant
High-strength prestressing strand, method for manufacturing the sam...
Patent number
7,861,507
Issue date
Jan 4, 2011
Sumitomo (SEI) Steel Wire Corp.
Tomoya Maekawa
C21 - METALLURGY OF IRON
Patents Applications
last 30 patents
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Patent Application
PREGROUTED PC STEEL MATERIAL AND METHOD FOR HARDENING PREGROUT LAYE...
Publication number
20150159377
Publication date
Jun 11, 2015
Sumitomo Electric Industries, Ltd.
Takahide Saiki
E04 - BUILDING
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Patent Application
HIGH-STRENGTH PC STEEL STRANDED WIRE, PROCESS FOR MANUFACTURING THE...
Publication number
20100108197
Publication date
May 6, 2010
SUMITOMO (SEI) STEEL WIRE CORP.
Tomoya Maekawa
C21 - METALLURGY OF IRON