Inventor
FUJITA TAIRA
JP8 patents
Patents
8 patentsUS4804417AFeb 14, 1989
Process for producing dioxazine violet pigment
SUMITOMO CHEMICAL CO18 citations78
US5077264ADec 31, 1991
Cyan dye-donor element used in thermal transfer and thermal transfer sheet using it
SUMITOMO CHEMICAL CO7 citations73
US4751300AJun 14, 1988
Production of dioxazine compound
SUMITOMO CHEMICAL CO7 citations72
US4077971AMar 7, 1978
Tetrahydrophthalimide methyl-2-phenylbenzatriazoles
SUMITOMO CHEMICAL CO9 citations65
US4785091ANov 15, 1988
Process for producing copper phthalocyanine pigment
SUMITOMO CHEMICAL CO6 citations57
US4450114AMay 22, 1984
Process for production of sulfuric acid semiesters
SUMITOMO CHEMICAL CO2 citations55
US4351765ASep 28, 1982
Process for the production of compounds having in the molecule at least one β-sulfatoethyl-sulfone group and at least one sulfonic acid group
SUMITOMO CHEMICAL CO1 citations45
US5013712AMay 7, 1991
Magenta dye-donor element used in thermal transfer and thermal transfer sheet using it
SUMITOMO CHEMICAL CO0 citations40