Inventor
NATE NOBUYUKI
JP5 patents
Patents
5 patentsUS4820831AApr 11, 1989
Process for preparing 4,4'-dihydroxydiphenyl sulfone having high purity
KONISHI CHEM IND15 citations72
US5189223AFeb 23, 1993
Process for preparation of 4,4'-dihydroxydiphenylsulfone
KONISHI CHEM IND7 citations71
US5241121AAug 31, 1993
Process for preparation of 4,4'-dihydroxydiphenylsulfone
KONISHI CHEM IND5 citations55
US7456321B2Nov 25, 2008
Process for producing high-purity 4,4′-dihydroxydiphenyl sulfone
KONISHI CHEM IND1 citations49
US6974886B2Dec 13, 2005
Process for producing dihydroxydiphenylsulfone
KONISHI CHEM IND0 citations48