Inventor
UCHIYAMA YOSHIRO
JP3 patents
Patents
3 patentsUS5770766AJun 23, 1998
Method for separating and purifying hydroxynaphtalenecarboxylic acids
UENO SEIYAKU OYO KENKYUJO KK5 citations57
US6194608B1Feb 27, 2001
Process for separating and purifying alkali metal salts of hydroxynaphthalenecarboxylic acids
UENO SEIYAKU OYO KENKYUJO KK0 citations47
US6133475AOct 17, 2000
Process for producing 2-hydroxynaphthalene-3,6-dicarboxylic acid
UENO SEIYAKU OYO KENKYUJO KK1 citations46