Inventor · disambiguated record
Tatsuya Yagyu
Also filed as: YAGYU TATSUYA
17 granted patents·204 citations·filing 1985–2004
94Inventor score
Top patents by PatentIndex Score
17 records- 0190US4666519AAqueous ink compositionORIENT CHEMICAL IND·Filed 1985·Granted May 19, 1987·31 cites·18 claims
- 0284US6468342B1Aqueous pigment dispersion and process for producing the sameORIENT CHEMICAL IND·Filed 2000·Granted Oct 22, 2002·34 cites·1 claims
- 0377US5366543AAlcohol-soluble dye and ink composition containing the sameORIENT CHEMICAL IND·Filed 1993·Granted Nov 22, 1994·15 cites·15 claims
- 0475US7220304B2Modified carbon black dispersion liquid and water base ink containing the sameSEIKO EPSON CORP·Filed 2004·Granted May 22, 2007·12 cites·20 claims
- 0575US5667571ASolvent-based black ink compositionORIENT CHEMICAL IND·Filed 1996·Granted Sep 16, 1997·35 cites·9 claims
- 0673US5034058AAqueous ink compositionORIENT CHEMICAL IND·Filed 1989·Granted Jul 23, 1991·26 cites·16 claims
- 0771US5340929ATrisazo dye and dye composition containing the sameORIENT CHEMICAL IND·Filed 1993·Granted Aug 23, 1994·12 cites·22 claims
- 0867US5795970AMixed disazo-dye composition and black aqueous ink composition containing the same that provides high grade image on printORIENT CHEMICAL IND·Filed 1996·Granted Aug 18, 1998·10 cites·12 claims
- 0962US7232480B2Modified carbon black carbon black dispersion liquid and water base inkORIENT CHEMICAL IND·Filed 2003·Granted Jun 19, 2007·8 cites·26 claims
- 1053US5095100AMetal complex dyes and preparation thereofORIENT CHEMICAL IND·Filed 1990·Granted Mar 10, 1992·4 cites·13 claims
- 1141US5616174AInk composition and ink jet recording method using the sameSEIKO EPSON CORP·Filed 1995·Granted Apr 1, 1997·8 cites·10 claims
- 1241US5326866ALiquid azo dye and ink composition containing the sameORIENT CHEMICAL IND·Filed 1993·Granted Jul 5, 1994·2 cites·5 claims
- 1340US5290347ASalt-forming type dye, and its concentrated solution composition and ink compositionORIENT CHEMICAL IND·Filed 1992·Granted Mar 1, 1994·2 cites·17 claims
- 1434US5160504AMethod of dyeing leather with metal complex dyes comprised of metalizable azo compoundsORIENT CHEMICAL IND·Filed 1991·Granted Nov 3, 1992·1 cites·8 claims
- 1531US5281264ASalt-forming type dye and ink compositionORIENT CHEMICAL IND·Filed 1993·Granted Jan 25, 1994·3 cites·20 claims
- 1630US5486601ATrisazo dye, and aqueous ink composition containing the sameORIENT CHEMICAL IND·Filed 1994·Granted Jan 23, 1996·1 cites·11 claims
- 1727US5336763ATrisazo dye and dye composition containing the sameORIENT CHEMICAL IND·Filed 1993·Granted Aug 9, 1994·0 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →