Inventor
AKAZAWA YOJI
JP5 patents
⚠️ This page may combine multiple inventors who share the name “AKAZAWA YOJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON CATALYTIC CHEM IND
4 patentsUS5322960AJun 21, 1994
Method for inhibiting polymerization of (meth) acrylic acid and esters thereof
NIPPON CATALYTIC CHEM IND89 citations95
US5504243AApr 2, 1996
Method for inhibiting polymerization of (meth) acrylic acid and esters thereof
NIPPON CATALYTIC CHEM IND47 citations92
US5315037AMay 24, 1994
Process for purification of acrylic acid
NIPPON CATALYTIC CHEM IND38 citations92
US4665200AMay 12, 1987
Method for preparing pyromellitic acid and/or pyromellitic anhydride
NIPPON CATALYTIC CHEM IND28 citations90