Inventor
TOMIYA NOBUYUKI
JP7 patents
Patents
7 patentsUS5772750AJun 30, 1998
Process for producing β-form copper phthalocyanine pigment
TOYO INK MFG CO17 citations83
US5942028AAug 24, 1999
Process for producing printing ink
TOYO INK MFG CO15 citations72
US5776237AJul 7, 1998
Process for preparing pigment composition, pigment composition and its use
TOYO INK MFG CO14 citations72
US5144014ASep 1, 1992
Process for production of monoazo lake coated with water-insoluble metal salt of rosin
TOYO INK MFG CO9 citations71
USRE37191EMay 29, 2001
Process for preparing pigment composition, pigment composition and its use
TOYO INK MFG CO4 citations61
US5243031ASep 7, 1993
Process for the production of monoazo lake pigment coated with water-insoluble rosin and improved in lipophilic nature and water resistance
TOYO INK MFG CO4 citations60
US7431762B2Oct 7, 2008
Process for producing dichlorodiketopyrrolopyrrole pigment of the α modification, dichlorodiketopyrrolopyrrole pigment of the α modification produced by the process, and coloring composition using the same
TOYO INK MFG CO5 citations51