Inventor
TAKAHATA KAZUNORI
JP12 patents
⚠️ This page may combine multiple inventors who share the name “TAKAHATA KAZUNORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUI PETROCHEMICAL IND
11 patentsUS5326486AJul 5, 1994
Lubricating oil composition
MITSUI PETROCHEMICAL IND20 citations91
US4329517AMay 11, 1982
Process for production of mono- or di-ortho-methyl-substituted phenols by catalytic methylation and catalyst therefor
MITSUI PETROCHEMICAL IND30 citations88
US5294356AMar 15, 1994
Polycarbonates, uses thereof, processes for preparing and purifying same
MITSUI PETROCHEMICAL IND19 citations81
US4351958ASep 28, 1982
Process for producing orthoalkylated aromatic amine
MITSUI PETROCHEMICAL IND20 citations81
US5254766AOct 19, 1993
Process for producing alkyl-substituted aromatic hydrocarbon using heteropolyacid salts
MITSUI PETROCHEMICAL IND18 citations73
US4891465AJan 2, 1990
Process for producting alkyl group-substituted aromatic hydrocarbons
MITSUI PETROCHEMICAL IND11 citations73
US5384056AJan 24, 1995
Polycarbonate and use thereof
MITSUI PETROCHEMICAL IND10 citations72
US5565129AOct 15, 1996
Polycarbonates, uses thereof, processes for preparing and purifying same
MITSUI PETROCHEMICAL IND3 citations62
US5476602ADec 19, 1995
Polycarbonates, uses thereof, processes for preparing and purifying same
MITSUI PETROCHEMICAL IND5 citations62
US4349419ASep 14, 1982
Process for separation of alkyl phenols by azeotropic distillation
MITSUI PETROCHEMICAL IND4 citations61
US4198535AApr 15, 1980
Process for producing linear unsaturated dimers of α-alkyl styrenes
MITSUI PETROCHEMICAL IND5 citations60