Inventor
OSAKO HAJIME
JP9 patents
⚠️ This page may combine multiple inventors who share the name “OSAKO HAJIME”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO METAL IND
3 patentsUS5938865AAug 17, 1999
Process for producing high-strength seamless steel pipe having excellent sulfide stress cracking resistance
SUMITOMO METAL IND66 citations94
US8006528B2Aug 30, 2011
Method for producing duplex stainless steel pipe, method for straightening, method for regulating strength, and method for operating straightener
SUMITOMO METAL IND2 citations60
US7416617B2Aug 26, 2008
High strength seamless steel pipe excellent in hydrogen-induced cracking resistance
SUMITOMO METAL IND0 citations45