Inventor · disambiguated record
Noriaki Okazawa
Also filed as: OKAZAWA NORIAKI
58 granted patents·7 pending applications·672 citations·filing 1990–2022
98Inventor score
Top patents by PatentIndex Score
65 records- 0199US9399352B2Liquid containerSEIKO EPSON CORP·Filed 2015·Granted Jul 26, 2016·58 cites·26 claims
- 0297US9186902B2Liquid containing vesselSEIKO EPSON CORP·Filed 2014·Granted Nov 17, 2015·15 cites·18 claims
- 0396US6382754B1Ink jet printing deviceSEIKO EPSON CORP·Filed 2000·Granted May 7, 2002·66 cites·66 claims
- 0495US10703098B2Liquid ejecting apparatus and methodSEIKO EPSON CORP·Filed 2019·Granted Jul 7, 2020·5 cites·16 claims
- 0593US8376540B2Liquid jet headSEIKO EPSON CORP HQ·Filed 2012·Granted Feb 19, 2013·5 cites·13 claims
- 0693US7229162B2Liquid jet headSEIKO EPSON CORP·Filed 2005·Granted Jun 12, 2007·10 cites·9 claims
- 0792US8192007B2Liquid jet headOKAZAWA NORIAKI·Filed 2011·Granted Jun 5, 2012·5 cites·2 claims
- 0890US7070263B2Liquid jet headSEIKO EPSON CORP·Filed 2002·Granted Jul 4, 2006·21 cites·23 claims
- 0989US7631964B2Liquid jet headSEIKO EPSON CORP HQ·Filed 2007·Granted Dec 15, 2009·6 cites·11 claims
- 1088US8876271B2Liquid jet headSEIKO EPSON CORP·Filed 2013·Granted Nov 4, 2014·2 cites·3 claims
- 1187US7984982B2Liquid jet headSEIKO EPSON CORP·Filed 2009·Granted Jul 26, 2011·4 cites·10 claims
- 1287US7300142B1Ink cartridge for ink-jet printing apparatusSEIKO EPSON CORP·Filed 1999·Granted Nov 27, 2007·44 cites·77 claims
- 1386US6755515B2Ink cartridge for ink-jet printing apparatusSEIKO EPSON CORP·Filed 2002·Granted Jun 29, 2004·23 cites·12 claims
- 1486US6386672B1Ink jet type recording headSEIKO EPSON CORP·Filed 1999·Granted May 14, 2002·53 cites·69 claims
- 1585US6139132AInk jet recording head with nozzle communicating hole having smaller width than pressurizing chambers in direction of array of pressurizing chambersSEIKO EPSON CORP·Filed 1996·Granted Oct 31, 2000·42 cites·29 claims
- 1685US5710584AInk jet recording head utilizing a vibration plate having diaphragm portions and thick wall portionsSEIKO EPSON CORP·Filed 1994·Granted Jan 20, 1998·51 cites·13 claims
- 1782US6217159B1Ink jet printing deviceSEIKO EPSON CORP·Filed 1997·Granted Apr 17, 2001·38 cites·29 claims
- 1877US7871156B2Ink cartridge for ink-jet printing apparatusSEIKO EPSON CORP·Filed 2007·Granted Jan 18, 2011·3 cites·2 claims
- 1975US9855754B2Liquid discharging deviceSEIKO EPSON CORP·Filed 2016·Granted Jan 2, 2018·1 cites·5 claims
- 2074US6460981B1Ink jet recording head having spacer with etched pressurizing chambers and ink supply portsSEIKO EPSON CORP·Filed 2000·Granted Oct 8, 2002·12 cites·1 claims
- 2173US7871157B2Liquid-jet apparatus liquid introducing needle with air intake suppressionSEIKO EPSON CORP·Filed 2007·Granted Jan 18, 2011·4 cites·6 claims
- 2273US6626524B2Ink jet recording head provided with a vibrator unitSEIKO EPSON CORP·Filed 2001·Granted Sep 30, 2003·14 cites·20 claims
- 2372US5157420AInk jet recording head having reduced manufacturing stepsNAKA TAKAHIRO·Filed 1990·Granted Oct 20, 1992·32 cites·5 claims
- 2471US7490923B2Liquid ejecting headSEIKO EPSON CORP·Filed 2005·Granted Feb 17, 2009·4 cites·15 claims
- 2571US6382778B1Ink jet recording head and method of manufacturing the sameSEIKO EPSON CORP·Filed 2000·Granted May 7, 2002·13 cites·27 claims
- 2669US9156271B2Liquid jet headSEIKO ESPON CORP·Filed 2014·Granted Oct 13, 2015·0 cites·9 claims
- 2768US5548314AInk jet recording headSEIKO EPSON CORP·Filed 1994·Granted Aug 20, 1996·23 cites·16 claims
- 2867USD737135SInk cartridge box for printersSEIKO EPSON CORP·Filed 2014·Granted Aug 25, 2015·13 cites·1 claims
- 2965US8783840B2Liquid jet headSEIKO EPSON CORP·Filed 2013·Granted Jul 22, 2014·0 cites·4 claims
- 3065US6332671B1Ink jet recording head and method of manufacturing the sameSEIKO EPSON CORP·Filed 1999·Granted Dec 25, 2001·21 cites·21 claims
- 3163US8162449B2Liquid ejecting head and liquid ejecting apparatusOKAZAWA NORIAKI·Filed 2009·Granted Apr 24, 2012·2 cites·7 claims
- 3263US8070268B2Liquid ejecting head and liquid ejecting apparatusOKAZAWA NORIAKI·Filed 2008·Granted Dec 6, 2011·2 cites·6 claims
- 3360US7028377B2Method of producing an ink jet recording headSEIKO EPSON CORP·Filed 2003·Granted Apr 18, 2006·6 cites·2 claims
- 3459US12251942B2Liquid ejecting apparatus and liquid ejecting methodSEIKO EPSON CORP·Filed 2022·Granted Mar 18, 2025·0 cites·14 claims
- 3559US6729002B1Method of producing an ink jet recording headSEIKO EPSON CORP·Filed 2000·Granted May 4, 2004·6 cites·9 claims
- 3657US7009327B2Piezoelectric element formation member, method of manufacturing the same, piezoelectric actuator unit and liquid ejection head incorporating the sameSEIKO EPSON CORP·Filed 2004·Granted Mar 7, 2006·6 cites·8 claims
- 3757US6749296B2Ink jet recording apparatusSEIKO EPSON CORP·Filed 1998·Granted Jun 15, 2004·16 cites·31 claims
- 3857US6296351B1Ink jet recording head with narrowed reservoir endsSEIKO EPSON CORP·Filed 1999·Granted Oct 2, 2001·15 cites·11 claims
- 3956US10946656B2Liquid ejection head and liquid ejection apparatusSEIKO EPSON CORP·Filed 2019·Granted Mar 16, 2021·0 cites·18 claims
- 4055US10889114B2Liquid ejecting apparatus and liquid ejecting headSEIKO EPSON CORP·Filed 2019·Granted Jan 12, 2021·0 cites·13 claims
- 4155US10850516B2Liquid ejecting head and liquid ejecting system with a sealing memberSEIKO EPSON CORP·Filed 2019·Granted Dec 1, 2020·0 cites·10 claims
- 4254US10857795B2Liquid ejection head, liquid ejection apparatus, and method of manufacturing liquid ejection headSEIKO EPSON CORP·Filed 2019·Granted Dec 8, 2020·0 cites·17 claims
- 4352US6598962B2Ink jet recording headSEIKO EPSON CORP·Filed 2001·Granted Jul 29, 2003·7 cites·13 claims
- 4451US6878609B2Silicon wafer break pattern, silicon substrate, and method of generating silicon wafer break patternSEIKO EPSON CORP·Filed 2003·Granted Apr 12, 2005·4 cites·20 claims
- 4550US10894400B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2019·Granted Jan 19, 2021·0 cites·15 claims
- 4646US6048053AInk jet recording head including a spacing member for defining a gap between a fixed board and a piezoelectric elementSEIKO EPSON CORP·Filed 1995·Granted Apr 11, 2000·11 cites·9 claims
- 4745US7775641B2Liquid ejecting headSEIKO EPSON CORP·Filed 2007·Granted Aug 17, 2010·0 cites·4 claims
- 4845US7717545B2Liquid ejecting head and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2008·Granted May 18, 2010·0 cites·8 claims
- 4944US2006196824A1Method of manufacturing filter, and filterSEIKO EPSON CORP·Filed 2006·Application pending·0 cites
- 5043US7690771B2Liquid ejection head, liquid ejection apparatus, and manufacturing method of liquid ejection headSEIKO EPSON CORP·Filed 2008·Granted Apr 6, 2010·0 cites·10 claims
Showing the top 50 of 65 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →