Inventor

SAGANE TOSHIO

JP2 patents

Patents

2 patents

US5504218AApr 2, 1996

Method for production pyromellitic anhydride

NIPPON CATALYTIC CHEM IND4 citations60

US6153767ANov 28, 2000

Production process for pyromellitic dianhydride

NIPPON CATALYTIC CHEM IND5 citations58