Inventor · disambiguated record
Takeshi Omatsu
Also filed as: OMATSU TAKESHI
14 granted patents·6 pending applications·166 citations·filing 1998–2007
92Inventor score
Top patents by PatentIndex Score
20 records- 0192US6406204B1Oily ink for writing instrumentSAKURA COLOR PROD CORP·Filed 2000·Granted Jun 18, 2002·31 cites·23 claims
- 0290US6336964B1Ozone indicator and ozone sensor inkSAKURA COLOR PROD CORP·Filed 2000·Granted Jan 8, 2002·37 cites·12 claims
- 0387US6659036B2Plasma sterilization indicatorSAKURA COLOR PROD CORP·Filed 2000·Granted Dec 9, 2003·27 cites·5 claims
- 0482US8080098B2Water-based ink compositionKURIHARA NORIMASA·Filed 2005·Granted Dec 20, 2011·7 cites·16 claims
- 0578US6117685AOzone indicator and ozone detecting inkSAKURA COLOR PROD CORP·Filed 1998·Granted Sep 12, 2000·41 cites·14 claims
- 0671US7776941B2Oil-based ink composition for writing instrumentsSAKURA COLOR PROD CORP·Filed 2006·Granted Aug 17, 2010·2 cites·2 claims
- 0764US6655867B2Oily ink for writing instrumentSAKURA COLOR PROD CORP·Filed 2002·Granted Dec 2, 2003·4 cites·25 claims
- 0860US8123845B2Water base dual color ink composition and writing utensil using the sameOMATSU TAKESHI·Filed 2007·Granted Feb 28, 2012·3 cites·32 claims
- 0959US7914222B2Tip unit for liquid applicator, method for producing the same, and liquid applicator having the tip unitSAKURA COLOR PROD CORP·Filed 2004·Granted Mar 29, 2011·5 cites·11 claims
- 1059US7721402B2Method of producing applicator tipSAKURA COLOR PROD CORP·Filed 2004·Granted May 25, 2010·3 cites·19 claims
- 1159US7538148B2Aqueous ink compositionSAKURA COLOR PROD CORP·Filed 2004·Granted May 26, 2009·5 cites·18 claims
- 1253US2004229373A1Ozone indicator and method of measuring ozone concentrationFiled 2004·Application pending·0 cites
- 1353US2004229372A1Ozone indicator and method of measuring ozone concentrationFiled 2004·Application pending·0 cites
- 1450US7905671B2Ink backflow preventive for water-based ball-point pensSAKURA COLOR PROD CORP·Filed 2005·Granted Mar 15, 2011·0 cites·6 claims
- 1548US2004161286A1Oily ink for writing instrumentFiled 2003·Application pending·0 cites
- 1647US7637680B2Coating toolSAKURA COLOR PROD CORP·Filed 2004·Granted Dec 29, 2009·1 cites·30 claims
- 1747US2003165404A1Ozone indicator and method of measuring ozone concentrationFiled 2001·Application pending·0 cites
- 1846US2001054374A1Plasma sterilization indicatorFiled 2001·Application pending·0 cites
- 1939US7541394B2Water base pigment ink composition for inner lead type writing instrumentSAKURA COLOR PROD CORP·Filed 2003·Granted Jun 2, 2009·0 cites·2 claims
- 2034US2005234150A1Water based pigment ink compositionOMATSU TAKESHI·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →