Inventor
SHIRAZAWA TAKASHI
JP5 patents
Patents
5 patentsUS4665305AMay 12, 1987
Corrosion resistant metal pipe with electrode for oil wells
MITSUBISHI ELECTRIC CORP15 citations72
US4445715AMay 1, 1984
Insulated joint and method for producing same
MITSUBISHI ELECTRIC CORP14 citations72
US4411457AOct 25, 1983
Insulated pipe joint
MITSUBISHI ELECTRIC CORP9 citations72
US5180532AJan 19, 1993
Process for preparing mica-containing ceramic composite
MITSUBISHI ELECTRIC CORP5 citations60
US4519970AMay 28, 1985
Method for producing insulated pipe joint
MITSUBISHI ELECTRIC CORP1 citations50