Inventor
ISHITSUKA TETSUO
JP7 patents
⚠️ This page may combine multiple inventors who share the name “ISHITSUKA TETSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON STEEL CORP
4 patentsUS6060180AMay 9, 2000
Alloy having high corrosion resistance in environment of high corrosiveness, steel pipe of the same alloy and method of manufacturing the same steel pipe
NIPPON STEEL CORP19 citations91
US5620805AApr 15, 1997
Alloy and multilayer steel tube having corrosion resistance in fuel combustion environment containing V, Na, S and Cl
NIPPON STEEL CORP18 citations83
US5190832AMar 2, 1993
Alloy and composite steel tube with corrosion resistance in combustion environment where v, na, s and cl are present
NIPPON STEEL CORP7 citations72
US5194222AMar 16, 1993
Alloy and composite steel tube with corrosion resistance in combustion environment where v, na, s and c1 are present
NIPPON STEEL CORP4 citations58
NIPPON STEEL & SUMITOMO METAL CORP
2 patentsUS10738371B2Aug 11, 2020
As-rolled type K55 electric resistance welded oil well pipe and hot-rolled steel sheet
NIPPON STEEL & SUMITOMO METAL CORP2 citations67
US10640843B2May 5, 2020
High strength electric resistance welded steel pipe and method for producing high strength electric resistance welded steel pipe
NIPPON STEEL & SUMITOMO METAL CORP0 citations34