Inventor · disambiguated record
Kenji Tsukada
Also filed as: TSUKADA KENJI
54 granted patents·9 pending applications·815 citations·filing 1997–2023
98Inventor score
Top patents by PatentIndex Score
63 records- 0199US6536861B1Liquid container having liquid consumption detecting deviceSEIKO EPSON CORP·Filed 2000·Granted Mar 25, 2003·98 cites·16 claims
- 0299US6470744B1Liquid detecting piezoelectric device, liquid container and mounting module memberSEIKO EPSON CORP·Filed 2000·Granted Oct 29, 2002·111 cites·65 claims
- 0397US7306308B2Liquid container, ink jet recording apparatus, apparatus and method for controlling the same, apparatus and method for detecting liquid consumption stateSEIKO EPSON CORP·Filed 2005·Granted Dec 11, 2007·27 cites·3 claims
- 0497US6799820B1Liquid container having a liquid detecting deviceSEIKO EPSON CORP·Filed 2000·Granted Oct 5, 2004·63 cites·48 claims
- 0596US6745626B2Liquid detecting piezoelectric device, liquid container and mounting module memberSEIKO EPSON CORP·Filed 2002·Granted Jun 8, 2004·46 cites·25 claims
- 0694US7267000B1Liquid consumption status detecting method, liquid container, and ink cartridgeSEIKO EPSON CORP·Filed 2000·Granted Sep 11, 2007·30 cites·39 claims
- 0794US7175244B2Liquid container having liquid consumption detecting deviceSEIKO EPSON CORP·Filed 2002·Granted Feb 13, 2007·36 cites·9 claims
- 0893US6802602B2Ink cartridge and ink jet record apparatus using ink cartridgeSEIKO EPSON CORP·Filed 2002·Granted Oct 12, 2004·47 cites·27 claims
- 0993US6729184B2Detector of liquid consumption conditionSEIKO EPSON CORP·Filed 2001·Granted May 4, 2004·40 cites·27 claims
- 1092US7547097B2Liquid ejection apparatus and liquid filling method of liquid ejection apparatusSEIKO EPSON CORP·Filed 2005·Granted Jun 16, 2009·14 cites·8 claims
- 1192US7325450B2Liquid consumption status detecting method, liquid container, and ink cartridgeSEIKO EPSON CORP·Filed 2006·Granted Feb 5, 2008·7 cites·12 claims
- 1291US7188520B2Liquid consumption status detecting method, liquid container, and ink cartridgeSEIKO EPSON CORP·Filed 2003·Granted Mar 13, 2007·21 cites·41 claims
- 1390US6540322B2Ink jet recording apparatus and ink suction method of the recording headSEIKO EPSON CORP·Filed 2001·Granted Apr 1, 2003·33 cites·30 claims
- 1489US11179947B2Liquid ejecting apparatus and method of controlling liquid ejecting apparatusSEIKO EPSON CORP·Filed 2020·Granted Nov 23, 2021·2 cites·9 claims
- 1586US6431674B2Ink-jet recording head that minutely vibrates ink meniscusSEIKO EPSON CORP·Filed 1997·Granted Aug 13, 2002·61 cites·41 claims
- 1684US7281776B2Liquid container having liquid consumption detecing deviceSEIKO EPSON CORP·Filed 2003·Granted Oct 16, 2007·12 cites·17 claims
- 1783US7434462B2Liquid consumption status detecting method, liquid container, and ink cartridgeSEIKO EPSON CORP·Filed 2007·Granted Oct 14, 2008·6 cites·18 claims
- 1881US7971945B2Ink consumption detecting method, and ink jet recording apparatusSEIKO EPSON CORP·Filed 2006·Granted Jul 5, 2011·6 cites·8 claims
- 1980US11570900B2Circuit forming methodFUJI CORP·Filed 2018·Granted Jan 31, 2023·2 cites·6 claims
- 2079US7878609B2Mounting structure, module, and liquid containerSEIKO EPSON CORP·Filed 2006·Granted Feb 1, 2011·4 cites·4 claims
- 2178US10667403B2Manufacturing apparatus for performing additive manufacturing of an electrical deviceFUJI CORP·Filed 2014·Granted May 26, 2020·3 cites·7 claims
- 2276US11849545B2Circuit formation methodFUJI CORP·Filed 2018·Granted Dec 19, 2023·2 cites·9 claims
- 2376US9302484B2Ink jet printing deviceSUZUKI MASATO·Filed 2012·Granted Apr 5, 2016·2 cites·14 claims
- 2476US7383727B2Liquid cotainer having a liquid consumption detecting device thereinSEIKO EPSON CORP·Filed 2000·Granted Jun 10, 2008·8 cites·55 claims
- 2575US10449730B2Electronic device manufacturing device and manufacturing method thereofKODAMA SEIGO·Filed 2012·Granted Oct 22, 2019·2 cites·15 claims
- 2674US6312092B1Ink jet recording apparatus and ink suction method of the recording headSEIKO EPSON CORP·Filed 1998·Granted Nov 6, 2001·26 cites·14 claims
- 2773US7798620B2Method of manufacturing a liquid containerSEIKO EPSON CORP·Filed 2006·Granted Sep 21, 2010·3 cites·2 claims
- 2873US7225670B2Mounting structure, module, and liquid containerSEIKO EPSON CORP·Filed 2001·Granted Jun 5, 2007·12 cites·26 claims
- 2972US7251996B2Liquid detecting piezoelectric device, liquid container and mounting module memberSEIKO EPSON CORP·Filed 2004·Granted Aug 7, 2007·6 cites·67 claims
- 3071US7156506B2Liquid charging method, liquid container, and method for manufacturing the sameSEIKO EPSON CORP·Filed 2001·Granted Jan 2, 2007·11 cites·43 claims
- 3171US6793305B2Method and apparatus for detecting consumption of inkSEIKO EPSON CORP·Filed 2001·Granted Sep 21, 2004·13 cites·69 claims
- 3269US7008034B2Liquid container, ink-jet recording apparatus, device and method for controlling the apparatus, liquid consumption sensing device and methodSEIKO EPSON CORP·Filed 2001·Granted Mar 7, 2006·10 cites·38 claims
- 3365US6921160B2Piezo-electric device and ink cartridge having the sameSEIKO EPSON CORP·Filed 2002·Granted Jul 26, 2005·10 cites·21 claims
- 3463US11230095B2Method of controlling liquid ejection apparatus and liquid ejection apparatusSEIKO EPSON CORP·Filed 2019·Granted Jan 25, 2022·0 cites·11 claims
- 3562US11470724B2Manufacturing apparatus for performing additive manufacturing of an electrical deviceFUJI CORP·Filed 2019·Granted Oct 11, 2022·0 cites·12 claims
- 3662US8322815B2Method of cleaning fluid ejecting apparatus and fluid ejecting apparatusTSUKADA KENJI·Filed 2008·Granted Dec 4, 2012·2 cites·5 claims
- 3761US7137679B2Ink consumption detecting method, and ink jet recording apparatusSEIKO EPSON CORP·Filed 2001·Granted Nov 21, 2006·8 cites·3 claims
- 3860US12369259B2Circuit forming methodFUJI CORP·Filed 2020·Granted Jul 22, 2025·0 cites·6 claims
- 3960US12250778B2Circuit board manufacturing method and circuit board manufacturing deviceFUJI CORP·Filed 2019·Granted Mar 11, 2025·0 cites·8 claims
- 4059US12291039B2Liquid ejection apparatusSEIKO EPSON CORP·Filed 2023·Granted May 6, 2025·0 cites·10 claims
- 4157US10212823B2Wiring forming method and circuit boardFUJI CORP·Filed 2014·Granted Feb 19, 2019·0 cites·8 claims
- 4257US8210644B2Liquid ejecting apparatus and method for cleaning the sameTSUKADA KENJI·Filed 2007·Granted Jul 3, 2012·1 cites·4 claims
- 4357US2009021566A1Liquid Consumption Status Detecting Method, Liquid Container, and Ink CartridgeSEIKO EPSON CORP·Filed 2008·Application pending·0 cites
- 4457US2024422917A1Electrical circuit forming method and electrical circuit forming apparatusFUJI CORP·Filed 2021·Application pending·0 cites
- 4555US7086281B2Detector of liquid consumption conditionSEIKO EPSON CORP·Filed 2004·Granted Aug 8, 2006·4 cites·6 claims
- 4653US10462909B2Wiring board manufacturing method and wiring board manufacturing deviceFUJI CORP·Filed 2014·Granted Oct 29, 2019·1 cites·4 claims
- 4753US6019464AInk jet recording headSEIKO EPSON CORP·Filed 1998·Granted Feb 1, 2000·13 cites·8 claims
- 4852US2006001714A1Liquid container having liquid consumption detecting deviceSEIKO EPSON CORP·Filed 2005·Application pending·0 cites
- 4951US2025142734A1Electrical circuit formation method, and electrical circuit formation deviceFUJI CORP·Filed 2022·Application pending·0 cites
- 5050US2024422916A1Circuit-forming method and circuit-forming apparatusFUJI CORP·Filed 2021·Application pending·0 cites
Showing the top 50 of 63 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →