Inventor · disambiguated record
Sohko Itoh
Also filed as: ITOH SOHKO
8 granted patents·403 citations·filing 1996–2004
90Inventor score
Top patents by PatentIndex Score
8 records- 0193US5846307AAqueous pigment ink compositionORIENT CHEMICAL IND·Filed 1997·Granted Dec 8, 1998·85 cites·15 claims
- 0292US5718746AProcess of producing aqueous pigment inkORIENT CHEMICAL IND·Filed 1996·Granted Feb 17, 1998·95 cites·11 claims
- 0391US5861447AAqueous pigment ink compositionORIENT CHEMICAL IND·Filed 1997·Granted Jan 19, 1999·96 cites·29 claims
- 0489US6099632AAqueous pigment ink compositionORIENT CHEMICAL IND·Filed 1998·Granted Aug 8, 2000·62 cites·10 claims
- 0584US6468342B1Aqueous pigment dispersion and process for producing the sameORIENT CHEMICAL IND·Filed 2000·Granted Oct 22, 2002·34 cites·1 claims
- 0675US7220304B2Modified carbon black dispersion liquid and water base ink containing the sameSEIKO EPSON CORP·Filed 2004·Granted May 22, 2007·12 cites·20 claims
- 0762US7232480B2Modified carbon black carbon black dispersion liquid and water base inkORIENT CHEMICAL IND·Filed 2003·Granted Jun 19, 2007·8 cites·26 claims
- 0845US5905102AAqueous black ink composition for writing boardORIENT CHEMICAL IND·Filed 1996·Granted May 18, 1999·11 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →