Inventor · disambiguated record
Taku Ishizawa
Also filed as: ISHIZAWA TAKU
198 granted patents·30 pending applications·2,373 citations·filing 2001–2025
99Inventor score
Top patents by PatentIndex Score
228 records- 0199US11298952B2Printing systemSEIKO EPSON CORP·Filed 2020·Granted Apr 12, 2022·10 cites·12 claims
- 0299US10471723B2Ink replenish containerSEIKO EPSON CORP·Filed 2017·Granted Nov 12, 2019·17 cites·4 claims
- 0399US10350901B2Ink bottleSEIKO EPSON CORP·Filed 2017·Granted Jul 16, 2019·33 cites·14 claims
- 0499US10350896B2Ink replenishment containerSEIKO EPSON CORP·Filed 2018·Granted Jul 16, 2019·25 cites·8 claims
- 0598US11192380B2Ink bottle and bottle setSEIKO EPSON CORP·Filed 2019·Granted Dec 7, 2021·17 cites·18 claims
- 0698US7566120B2Ink cartridge for use with recording apparatus and ink jet recording apparatusSEIKO EPSON CORP·Filed 2007·Granted Jul 28, 2009·31 cites·20 claims
- 0798US7380909B2Ink cartridge for use with recording apparatus and ink jet recording apparatusSEIKO EPSON CORP·Filed 2005·Granted Jun 3, 2008·39 cites·58 claims
- 0898US6834945B2Ink cartridge for use with recording apparatus and ink jet recording apparatusSEIKO EPSON CORP·Filed 2001·Granted Dec 28, 2004·110 cites·28 claims
- 0998US6582068B2Ink cartridge, and ink-jet recording apparatus using the sameSEIKO EPSON CORP·Filed 2002·Granted Jun 24, 2003·136 cites·6 claims
- 1097US10752003B2Ink refill container and ink refill systemSEIKO EPSON CORP·Filed 2017·Granted Aug 25, 2020·9 cites·6 claims
- 1197US10618292B2Printer and ink bottleSEIKO EPSON CORP·Filed 2018·Granted Apr 14, 2020·10 cites·2 claims
- 1297US9878551B2Liquid container and liquid ejection systemSEIKO EPSON CORP·Filed 2016·Granted Jan 30, 2018·8 cites·4 claims
- 1397US9592675B2Liquid fill containerSEIKO EPSON CORP·Filed 2015·Granted Mar 14, 2017·21 cites·13 claims
- 1497US9186902B2Liquid containing vesselSEIKO EPSON CORP·Filed 2014·Granted Nov 17, 2015·15 cites·18 claims
- 1597US9090075B2Liquid fill containerMATSUMOTO HITOSHI·Filed 2011·Granted Jul 28, 2015·27 cites·17 claims
- 1697US8926073B2Liquid container and liquid ejection systemSEIKO EPSON CORP·Filed 2014·Granted Jan 6, 2015·10 cites·3 claims
- 1797US8678567B2Liquid container and liquid ejection systemSHIMIZU YOSHIAKI·Filed 2011·Granted Mar 25, 2014·29 cites·33 claims
- 1897US8454139B2Liquid accommodating container, tank unit, and liquid ejecting systemISHIZAWA TAKU·Filed 2011·Granted Jun 4, 2013·19 cites·15 claims
- 1997US7152965B2Ink cartridge, and ink-jet recording apparatus using the sameSEIKO EPSON CORP·Filed 2001·Granted Dec 26, 2006·62 cites·92 claims
- 2097US7077513B2Ink jet recording apparatus, control and ink replenishing method executed in the same, ink supply system incorporated in the same, and method of managing ink amount supplied by the systemSEIKO EPSON CORP·Filed 2003·Granted Jul 18, 2006·76 cites·37 claims
- 2196US11117379B2Ink replenish containerSEIKO EPSON CORP·Filed 2019·Granted Sep 14, 2021·5 cites·3 claims
- 2296US7806523B2Liquid ejecting apparatus and liquid container holder thereofSEIKO EPSON CORP·Filed 2005·Granted Oct 5, 2010·29 cites·8 claims
- 2396US7543925B2Liquid containerSEIKO EPSON CORP·Filed 2006·Granted Jun 9, 2009·40 cites·13 claims
- 2496US7513613B2Liquid container and liquid filling methodSEIKO EPSON CORP·Filed 2006·Granted Apr 7, 2009·27 cites·17 claims
- 2596US6758556B2Ink cartridge, and ink-jet recording apparatus using the sameSEIKO EPSON CORP·Filed 2002·Granted Jul 6, 2004·52 cites·59 claims
- 2695US11059299B2Ink replenishing container and ink replenishing systemSEIKO EPSON CORP·Filed 2020·Granted Jul 13, 2021·3 cites·9 claims
- 2795US10974512B2Ink replenishing container and ink replenishing systemSEIKO EPSON CORP·Filed 2020·Granted Apr 13, 2021·3 cites·5 claims
- 2895US8757781B2Tank unit and liquid ejecting system having tank unitISHIZAWA TAKU·Filed 2011·Granted Jun 24, 2014·8 cites·20 claims
- 2995US8011772B2Liquid containerSEIKO EPSON CORP·Filed 2009·Granted Sep 6, 2011·14 cites·7 claims
- 3095US7784923B2Ink cartridge, and ink-jet recording apparatus using the sameSEIKO EPSON CORP·Filed 2006·Granted Aug 31, 2010·15 cites·18 claims
- 3195US7722174B2Liquid container, component for forming liquid container, and method for producing liquid containerSEIKO EPSON CORP·Filed 2008·Granted May 25, 2010·18 cites·12 claims
- 3295US6874876B2Ink cartridge for use with recording apparatus and ink jet recording apparatusSEIKO EPSON CORP·Filed 2002·Granted Apr 5, 2005·45 cites·22 claims
- 3394US9346278B2Packaging tray and packaging bodySEIKO EPSON CORP·Filed 2015·Granted May 24, 2016·5 cites·16 claims
- 3494US8646885B2Ink jet recording apparatusISHIZAWA TAKU·Filed 2011·Granted Feb 11, 2014·6 cites·10 claims
- 3594US7997703B2Liquid containerSEIKO EPSON CORP·Filed 2008·Granted Aug 16, 2011·16 cites·7 claims
- 3694US7699453B2Liquid storage containerSEIKO EPSON CORP·Filed 2007·Granted Apr 20, 2010·18 cites·6 claims
- 3794US7452062B2Liquid container with structure for controlling leaked liquidSEIKO EPSON CORP·Filed 2004·Granted Nov 18, 2008·36 cites·17 claims
- 3893US8540347B2Recording material delivery system for recording material-consuming apparatus; circuit board; structural body; and ink cartridgeISHIZAWA TAKU·Filed 2010·Granted Sep 24, 2013·8 cites·27 claims
- 3993US8366251B2Liquid container, method of filling liquid into liquid container, and remanufacturing method of liquid containerSEIKO EPSON CORP·Filed 2009·Granted Feb 5, 2013·16 cites·6 claims
- 4093US8177342B2Liquid container and remanufacturing method of liquid containerWANIBE AKIHISA·Filed 2009·Granted May 15, 2012·18 cites·6 claims
- 4193US8142000B2Liquid container and remanufacturing method of liquid containerISHIZAWA TAKU·Filed 2009·Granted Mar 27, 2012·16 cites·14 claims
- 4293US7942510B2Liquid injecting method and liquid containerSEIKO EPSON CORP·Filed 2007·Granted May 17, 2011·18 cites·9 claims
- 4393US7488067B2Liquid container, liquid ejection device and liquid container caseSEIKO EPSON CORP·Filed 2006·Granted Feb 10, 2009·15 cites·8 claims
- 4493US7404628B2Liquid containerSEIKO EPSON CORP·Filed 2004·Granted Jul 29, 2008·43 cites·51 claims
- 4593USD522049SInk cartridge for printerSEIKO EPSON CORP·Filed 2004·Granted May 30, 2006·41 cites·1 claims
- 4693US7018029B2Liquid container and liquid ejection apparatusSEIKO EPSON CORP·Filed 2003·Granted Mar 28, 2006·48 cites·27 claims
- 4793US6883905B2Ink jet recording apparatus, control and ink replenishing method executed in the same, ink supply system incorporated in the same, and method of managing ink amount supplied by the systemSEIKO EPSON CORP·Filed 2002·Granted Apr 26, 2005·39 cites·20 claims
- 4892US8733914B2Method of manufacturing a liquid containerSEIKO EPSON CORP·Filed 2013·Granted May 27, 2014·7 cites·20 claims
- 4992US7125108B2Liquid cartridgeSEIKO EPSON CORP·Filed 2003·Granted Oct 24, 2006·45 cites·23 claims
- 5092US6648445B2Terminals for circuit boardSEIKO EPSON CORP·Filed 2001·Granted Nov 18, 2003·49 cites·9 claims
Showing the top 50 of 228 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →