Inventor
HISAMUNE NOBUYUKI
JP5 patents
Patents
5 patentsUS7896984B2Mar 1, 2011
Method for manufacturing seamless steel pipe for line pipe
SUMITOMO METAL IND3 citations62
US7896985B2Mar 1, 2011
Seamless steel pipe for line pipe and a process for its manufacture
SUMITOMO METAL IND1 citations61
US7815755B2Oct 19, 2010
Seamless steel pipe and manufacturing method thereof
SUMITOMO METAL IND2 citations61
US7931757B2Apr 26, 2011
Seamless steel pipe for line pipe and a process for its manufacture
SUMITOMO METAL IND0 citations50
US7416617B2Aug 26, 2008
High strength seamless steel pipe excellent in hydrogen-induced cracking resistance
SUMITOMO METAL IND0 citations45