Inventor

MANAMI HIROSHI

JP4 patents

Patents

4 patents

US4606863AAug 19, 1986

Process for preparing carboxylic acid

NEW JAPAN CHEM CO LTD45 citations90

US4914231AApr 3, 1990

Method for purifying a crude diphenylsulfone tetracarboxylic acid

NEW JAPAN CHEM CO LTD13 citations70

US4778932AOct 18, 1988

Process for preparing diarylsulfones

NEW JAPAN CHEM CO LTD13 citations70

US5091564AFeb 25, 1992

Process for preparing diphenyl sulfonetetracarboxylic acid

NEW JAPAN CHEM CO LTD0 citations44