Inventor · disambiguated record
Takahiro Naka
Also filed as: NAKA TAKAHIRO
75 granted patents·9 pending applications·2,295 citations·filing 1978–2015
99Inventor score
Files withSEIKO EPSON CORP61HONDA MOTOR CO LTD13MITSUBISHI GAS CHEMICAL CO2N E CHEMCAT CORP2SEINO TAKEO2
Top patents by PatentIndex Score
84 records- 0198US6302531B1Valve unit in ink supply channel of ink-jet recording apparatus, ink cartridge using the valve unit, ink supply needle and method of producing the valve unitSEIKO EPSON CORP·Filed 1998·Granted Oct 16, 2001·109 cites·41 claims
- 0297US6648459B2Valve unit in ink supply channel of ink-jet recording apparatus, ink cartridge using the valve unit, ink supply needle and method of producing the valve unitSEIKO EPSON CORP·Filed 2001·Granted Nov 18, 2003·58 cites·12 claims
- 0397US6634738B1Ink cartridge for ink-jet printing apparatusSEIKO EPSON CORP·Filed 2000·Granted Oct 21, 2003·80 cites·25 claims
- 0497US6554412B1Ink cartridge, ink jet recorder, and method of mounting ink cartridgeSEIKO EPSON CORP·Filed 2000·Granted Apr 29, 2003·91 cites·46 claims
- 0597US6390611B1Ink jet recording apparatus, sub-tank unit adapted thereto, and ink droplet ejection capability recovery methodSEIKO EPSON CORP·Filed 2000·Granted May 21, 2002·189 cites·73 claims
- 0697US6361138B1Ink jet printing apparatus and ink cartridgeSEIKO EPSON CORP·Filed 1999·Granted Mar 26, 2002·142 cites·30 claims
- 0796US6672695B1Ink cartridge management system, printer, and ink cartridgeSEIKO EPSON CORP·Filed 2000·Granted Jan 6, 2004·96 cites·66 claims
- 0895US6547363B1Ink cartridge, ink jet type printing apparatus using the same, and ink cartridge change control method in the apparatusSEIKO EPSON CORP·Filed 2000·Granted Apr 15, 2003·104 cites·44 claims
- 0994US7997703B2Liquid containerSEIKO EPSON CORP·Filed 2008·Granted Aug 16, 2011·16 cites·7 claims
- 1094US6786581B1Ink-jet printing apparatus and ink cartridgeSEIKO EPSON CORP·Filed 1999·Granted Sep 7, 2004·80 cites·44 claims
- 1193US7404628B2Liquid containerSEIKO EPSON CORP·Filed 2004·Granted Jul 29, 2008·43 cites·51 claims
- 1293US6971732B1Ink jet recording apparatusSEIKO EPSON CORP·Filed 2000·Granted Dec 6, 2005·54 cites·28 claims
- 1393US6709088B2Inkjet recording apparatusSEIKO EPSON CORP·Filed 2001·Granted Mar 23, 2004·43 cites·16 claims
- 1492US6899417B1Ink cartridge for use in an ink jet recording apparatusSEIKO EPSON CORP·Filed 2000·Granted May 31, 2005·41 cites·28 claims
- 1591US6793330B2Ink cartridge for ink-jet printing apparatusSEIKO EPSON CORP·Filed 2002·Granted Sep 21, 2004·30 cites·30 claims
- 1691US6705712B2Ink cartridge, ink jet recording device using the same, and method for controlling the cleaning of a recording head of the ink jet recording deviceSEIKO EPSON CORP·Filed 2001·Granted Mar 16, 2004·45 cites·25 claims
- 1790US6502916B1Ink jet printing device and an ink cartridgeSEIKO EPSON CORP·Filed 1999·Granted Jan 7, 2003·69 cites·19 claims
- 1887US7300142B1Ink cartridge for ink-jet printing apparatusSEIKO EPSON CORP·Filed 1999·Granted Nov 27, 2007·44 cites·77 claims
- 1987US7090344B2Ink cartridge for use in an ink jet recording apparatusSEIKO EPSON CORP·Filed 2005·Granted Aug 15, 2006·8 cites·9 claims
- 2087US6969136B1Ink cartridge, ink-jet printing apparatus, and refilling deviceSEIKO EPSON CORP·Filed 1999·Granted Nov 29, 2005·48 cites·43 claims
- 2186US7014305B2Ink cartridgeSEIKO EPSON CORP·Filed 2004·Granted Mar 21, 2006·23 cites·8 claims
- 2286US6755515B2Ink cartridge for ink-jet printing apparatusSEIKO EPSON CORP·Filed 2002·Granted Jun 29, 2004·23 cites·12 claims
- 2386US5391627AHeat-resistant, oil-resistant rubber compositionHONDA MOTOR CO LTD·Filed 1993·Granted Feb 21, 1995·36 cites·6 claims
- 2485US6886927B2Ink-jet printing apparatus and ink cartridgeSEIKO EPSON CORP·Filed 2002·Granted May 3, 2005·20 cites·8 claims
- 2585US6139132AInk 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
- 2685US5710584AInk 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
- 2781US5424769AInk jet recording headSEIKO EPSON CORP·Filed 1993·Granted Jun 13, 1995·43 cites·18 claims
- 2881US4684963ANozzle cover assembly for an ink-on-demand type ink jet printerSEIKO EPSON CORP·Filed 1985·Granted Aug 4, 1987·30 cites·23 claims
- 2980US5070346AInk near-end detecting deviceSEIKO EPSON CORP·Filed 1991·Granted Dec 3, 1991·40 cites·6 claims
- 3079US5333204ASpeaker systemPIONEER ELECTRONIC CORP·Filed 1992·Granted Jul 26, 1994·65 cites·1 claims
- 3178US6677068B2Catalyst for selective oxidation of carbon monoxide present in hydrogen-containing gases, and elimination of carbon monoxide and solid polymer electrolyte fuel cell system which make use of the catalystN E CHEMCAT CORP·Filed 2003·Granted Jan 13, 2004·17 cites·16 claims
- 3278US6576208B1Catalyst for selective oxidation and elimination of carbon monoxide present in hydrogen-containing gasesN E CHEMCAT CORP·Filed 2000·Granted Jun 10, 2003·17 cites·21 claims
- 3377US7871156B2Ink cartridge for ink-jet printing apparatusSEIKO EPSON CORP·Filed 2007·Granted Jan 18, 2011·3 cites·2 claims
- 3477US6908184B2Ink cartridge for ink-jet printing apparatusSEIKO EPSON CORP·Filed 2003·Granted Jun 21, 2005·14 cites·19 claims
- 3576US7726773B2Waste liquid recovery apparatus, relay and liquid jetting apparatusSEIKO EPSON CORP·Filed 2005·Granted Jun 1, 2010·4 cites·37 claims
- 3676US6562499B1Catalyst and method for selectively oxidizing carbon monoxide in hydrogen-containing gas and solid polymer electrolyte-type fuel cell system using such catalystHONDA MOTOR CO LTD·Filed 2000·Granted May 13, 2003·17 cites·17 claims
- 3776US5375326AMethod of manufacturing ink jet headSEIKO EPSON CORP·Filed 1993·Granted Dec 27, 1994·32 cites·7 claims
- 3876US5255019AInk near-end detecting deviceSEIKO EPSON CORP·Filed 1991·Granted Oct 19, 1993·33 cites·6 claims
- 3975US6290877B2Method of starting and stopping methanol reforming apparatus and apparatus for supplying fuel to said apparatusHONDA MOTOR CO LTD·Filed 2000·Granted Sep 18, 2001·15 cites·8 claims
- 4074US7696126B2Method of producing oxidation catalyst for cleaning exhaust gasHONDA MOTOR CO LTD·Filed 2009·Granted Apr 13, 2010·3 cites·3 claims
- 4174US6460981B1Ink 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
- 4274US5786833APiezoelectric driver for an ink jet recording head, including front end plate having front end face aligned with front end face of inactive region of driverSEIKO EPSON CORP·Filed 1994·Granted Jul 28, 1998·25 cites·19 claims
- 4374US5655362AExhaust emission control system in engineHONDA MOTOR CO LTD·Filed 1994·Granted Aug 12, 1997·44 cites·13 claims
- 4472US5157420AInk jet recording head having reduced manufacturing stepsNAKA TAKAHIRO·Filed 1990·Granted Oct 20, 1992·32 cites·5 claims
- 4571US5956058AInk jet print head with improved spacer made from silicon single-crystal substrateSEIKO EPSON CORP·Filed 1994·Granted Sep 21, 1999·23 cites·31 claims
- 4671US5539982AMethod of manufacturing an ink jet recording headSEIKO EPSON CORP·Filed 1994·Granted Jul 30, 1996·21 cites·10 claims
- 4770US7195345B2Ink-jet printing apparatus and ink cartridgeSEIKO EPSON CORP·Filed 2004·Granted Mar 27, 2007·9 cites·12 claims
- 4870US5471232AInk jet recording headSEIKO EPSON CORP·Filed 1993·Granted Nov 28, 1995·20 cites·7 claims
- 4968US5548314AInk jet recording headSEIKO EPSON CORP·Filed 1994·Granted Aug 20, 1996·23 cites·16 claims
- 5067US7033009B2Ink cartridge, ink-jet type printing apparatus using the same, and ink cartridge change control method in the apparatusSEIKO EPSON CORP·Filed 2003·Granted Apr 25, 2006·10 cites·8 claims
Showing the top 50 of 84 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →