Inventor
YAGYU TATSUYA
JP17 patents
⚠️ This page may combine multiple inventors who share the name “YAGYU TATSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ORIENT CHEMICAL IND
15 patentsUS5667571ASep 16, 1997
Solvent-based black ink composition
ORIENT CHEMICAL IND35 citations92
US6468342B1Oct 22, 2002
Aqueous pigment dispersion and process for producing the same
ORIENT CHEMICAL IND34 citations91
US5034058AJul 23, 1991
Aqueous ink composition
ORIENT CHEMICAL IND26 citations91
US4666519AMay 19, 1987
Aqueous ink composition
ORIENT CHEMICAL IND31 citations91
US7232480B2Jun 19, 2007
Modified carbon black carbon black dispersion liquid and water base ink
ORIENT CHEMICAL IND8 citations73
US5795970AAug 18, 1998
Mixed disazo-dye composition and black aqueous ink composition containing the same that provides high grade image on print
ORIENT CHEMICAL IND10 citations73
US5366543ANov 22, 1994
Alcohol-soluble dye and ink composition containing the same
ORIENT CHEMICAL IND15 citations71
US5340929AAug 23, 1994
Trisazo dye and dye composition containing the same
ORIENT CHEMICAL IND12 citations71
US5290347AMar 1, 1994
Salt-forming type dye, and its concentrated solution composition and ink composition
ORIENT CHEMICAL IND2 citations62
US5326866AJul 5, 1994
Liquid azo dye and ink composition containing the same
ORIENT CHEMICAL IND2 citations60
US5281264AJan 25, 1994
Salt-forming type dye and ink composition
ORIENT CHEMICAL IND3 citations60
US5095100AMar 10, 1992
Metal complex dyes and preparation thereof
ORIENT CHEMICAL IND4 citations60
US5486601AJan 23, 1996
Trisazo dye, and aqueous ink composition containing the same
ORIENT CHEMICAL IND1 citations52
US5336763AAug 9, 1994
Trisazo dye and dye composition containing the same
ORIENT CHEMICAL IND0 citations49
US5160504ANov 3, 1992
Method of dyeing leather with metal complex dyes comprised of metalizable azo compounds
ORIENT CHEMICAL IND1 citations49