Inventor
KUSHIDA TAKAHIRO
JP10 patents
⚠️ This page may combine multiple inventors who share the name “KUSHIDA TAKAHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO METAL IND
8 patentsUS6267828B1Jul 31, 2001
Low alloy steel for oil country tubular goods and method of making
SUMITOMO METAL IND80 citations95
US6220306B1Apr 24, 2001
Low carbon martensite stainless steel plate
SUMITOMO METAL IND59 citations95
US5938865AAug 17, 1999
Process for producing high-strength seamless steel pipe having excellent sulfide stress cracking resistance
SUMITOMO METAL IND66 citations94
US6379821B2Apr 30, 2002
Martensitic stainless steel welded pipe
SUMITOMO METAL IND39 citations92
US5383983AJan 24, 1995
Martensitic stainless steel suitable for use in oil wells
SUMITOMO METAL IND19 citations73
US5555916ASep 17, 1996
Steel product excellent in sulfide cracking resistance
SUMITOMO METAL IND14 citations72
US7361236B2Apr 22, 2008
Martensitic stainless steel
SUMITOMO METAL IND4 citations62
US7648587B2Jan 19, 2010
Steel product for use as line pipe having high HIC resistance and line pipe produced using such steel product
SUMITOMO METAL IND2 citations59