Inventor · disambiguated record
Hirofumi Sakai
Also filed as: SAKAI HIROFUMI
46 granted patents·6 pending applications·292 citations·filing 1994–2019
98Inventor score
Files withSEIKO EPSON CORP35SAKAI HIROFUMI6ASMO CO LTD3MATSUSHITA ELECTRIC INDUSTRIAL CO LTD3TOKYO ELECTRON LTD2
Top patents by PatentIndex Score
52 records- 0193US10384227B2Fluid discharging apparatus and method of discharging fluidSEIKO EPSON CORP·Filed 2017·Granted Aug 20, 2019·5 cites·10 claims
- 0293US10189267B2Liquid ejecting apparatus, liquid ejecting method, and computer programSEIKO EPSON CORP·Filed 2017·Granted Jan 29, 2019·6 cites·7 claims
- 0393US7989025B2Film forming method, method for manufacturing organic electroluminescent device, organic electroluminescent device, and electronic apparatusSEIKO EPSON CORP·Filed 2006·Granted Aug 2, 2011·24 cites·12 claims
- 0492US10549532B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2018·Granted Feb 4, 2020·4 cites·4 claims
- 0589US6591707B2Geared motor having worm wheel drivingly connected to output shaftASMO CO LTD·Filed 2001·Granted Jul 15, 2003·36 cites·20 claims
- 0686US10479097B2Liquid ejecting apparatusSEIKO EPSON CORP·Filed 2018·Granted Nov 19, 2019·2 cites·6 claims
- 0786US7223309B2Display manufacturing apparatus and display manufacturing methodSEIKO EPSON CORP·Filed 2003·Granted May 29, 2007·29 cites·16 claims
- 0885US10618062B2Fluid discharge apparatusSEIKO EPSON CORP·Filed 2017·Granted Apr 14, 2020·2 cites·7 claims
- 0985US6952311B2Microlens device and method of manufacturing the same, electro-optic device and electronic apparatusSEIKO EPSON CORP·Filed 2004·Granted Oct 4, 2005·18 cites·13 claims
- 1084US7563147B2Organic electroluminescent device, method of manufacture thereof and electronic apparatusSEIKO EPSON CORP·Filed 2005·Granted Jul 21, 2009·10 cites·6 claims
- 1181US7705997B2Method of measuring topology of functional liquid droplet in pixel, topology measuring apparatus of functional liquid in pixel, liquid ejection apparatus, method of manufacturing electro-optical apparatus, electro-optical apparatus, and electronic apparatusSEIKO EPSON CORP·Filed 2008·Granted Apr 27, 2010·5 cites·11 claims
- 1278US9114628B2Print control apparatus and print control methodSEIKO EPSON CORP·Filed 2013·Granted Aug 25, 2015·2 cites·8 claims
- 1377US10399336B2Liquid ejecting apparatus having outflow passage resistance changing member and liquid ejection method thereofSEIKO EPSON CORP·Filed 2018·Granted Sep 3, 2019·1 cites·3 claims
- 1477US6481306B2Geared motor having seal member for restraining intrusion of water or the likeASMO CO LTD·Filed 2001·Granted Nov 19, 2002·20 cites·9 claims
- 1576US7453199B2Organic electroluminescent deviceSEIKO EPSON CORP·Filed 2005·Granted Nov 18, 2008·4 cites·4 claims
- 1675US7449252B2Organic electroluminescent device, manufacturing method thereof, and electronic apparatusSEIKO EPSON CORP·Filed 2005·Granted Nov 11, 2008·4 cites·5 claims
- 1774US7897211B2Method for forming film pattern and method for manufacturing an organic EL device, a color filter substrate and a liquid crystal display deviceSEIKO EPSON CORP·Filed 2006·Granted Mar 1, 2011·4 cites·11 claims
- 1871US6966771B2Boat for heat treatment and vertical heat treatment equipmentTOKYO ELECTRON LTD·Filed 2002·Granted Nov 22, 2005·15 cites·13 claims
- 1970US6481550B2Motor having clutch provided with stopperASMO CO LTD·Filed 2001·Granted Nov 19, 2002·16 cites·17 claims
- 2069US8777352B2Printing device, printing method, and medium having recorded programSAKAI HIROFUMI·Filed 2012·Granted Jul 15, 2014·1 cites·10 claims
- 2169US7365484B1Patterned substrate, electro-optical device, and method for manufacturing an electro-optical deviceSEIKO EPSON CORP·Filed 2005·Granted Apr 29, 2008·3 cites·20 claims
- 2267US7514281B2Method for manufacturing organic electroluminescence device and electronic apparatusSEIKO EPSON CORP·Filed 2005·Granted Apr 7, 2009·2 cites·8 claims
- 2365US7345304B2Emitter, manufacturing method and manufacturing apparatus thereof, electro-optical apparatus and electronic apparatusSEIKO EPSON CORP·Filed 2006·Granted Mar 18, 2008·1 cites·2 claims
- 2465US6674258B2Motor driver and motor drive methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jan 6, 2004·21 cites·10 claims
- 2564US8366232B2Method of measuring landed dot, measuring apparatus for landed dot, liquid droplet ejection apparatus, method of manufacturing electro-optic apparatus, electro-optic apparatus, and electronic apparatusSEIKO EPSON CORP·Filed 2008·Granted Feb 5, 2013·4 cites·12 claims
- 2663US6873126B2Motor drive method and motor driverMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Mar 29, 2005·14 cites·9 claims
- 2761US7387903B2Method for manufacturing layer pattern, method for manufacturing wiring, and method for manufacturing electronic equipmentSEIKO EPSON CORP·Filed 2004·Granted Jun 17, 2008·7 cites·6 claims
- 2860US8757772B2Droplet discharge deviceSEIKO EPSON CORP·Filed 2013·Granted Jun 24, 2014·0 cites·6 claims
- 2960US7920274B2Method of measuring topology of functional liquid droplet in pixel, topology measuring apparatus of functional liquid in pixel, liquid ejection apparatus, method of manufacturing electro-optical apparatus, electro-optical apparatus, and electronic apparatusSEIKO EPSON CORP·Filed 2010·Granted Apr 5, 2011·1 cites·2 claims
- 3060US7071486B2Emitter, manufacturing method and manufacturing apparatus thereof, electro-optical apparatus and electronic apparatusSEIKO EPSON CORP·Filed 2004·Granted Jul 4, 2006·5 cites·18 claims
- 3158US2015116404A1Printing device, printing method, and medium having recorded programSEIKO EPSON CORP·Filed 2014·Application pending·0 cites
- 3257US8529019B2Pattern film formation method and organic EL device manufacturing methodSAKAI HIROFUMI·Filed 2012·Granted Sep 10, 2013·0 cites·10 claims
- 3357US6969963B2PWM controlled motor driveMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Nov 29, 2005·10 cites·3 claims
- 3455US8026114B2Emitter, manufacturing method and manufacturing apparatus thereof, electro-optical apparatus and electronic apparatusSEIKO EPSON CORP·Filed 2006·Granted Sep 27, 2011·0 cites·3 claims
- 3554US8888205B2Printing device, printing method, and medium having recorded programSAKAI HIROFUMI·Filed 2012·Granted Nov 18, 2014·0 cites·8 claims
- 3652US8256874B2Droplet discharge deviceSAKAI HIROFUMI·Filed 2010·Granted Sep 4, 2012·0 cites·4 claims
- 3750US8876246B2Liquid ejecting apparatus, method of controlling liquid ejecting apparatus, and program for controlling liquid ejecting apparatusSAKAI HIROFUMI·Filed 2012·Granted Nov 4, 2014·0 cites·7 claims
- 3850US7500895B2Patterned substrate, electro-optical device, and method for manufacturing an electro-optical deviceSEIKO EPSON CORP·Filed 2005·Granted Mar 10, 2009·0 cites·5 claims
- 3949US11192361B2Liquid discharging head and liquid discharging apparatusSEIKO EPSON CORP·Filed 2019·Granted Dec 7, 2021·0 cites·3 claims
- 4048US10618279B2Liquid discharging apparatusSEIKO EPSON CORP·Filed 2018·Granted Apr 14, 2020·0 cites·9 claims
- 4147US2018085777A1Fluid discharge apparatus and fluid discharge methodSEIKO EPSON CORP·Filed 2017·Application pending·0 cites
- 4246US2006152559A1Pattern formation method, method for manufacturing color filter, color filter, method for manufacturing electro-optical device, and electro-optical deviceSEIKO EPSON CORP·Filed 2005·Application pending·0 cites
- 4345US10618276B2Controlling ejection nozzles and non-ejection nozzles separately in multiple statesSEIKO EPSON CORP·Filed 2018·Granted Apr 14, 2020·0 cites·7 claims
- 4445US5461234AMethod and apparatus for measuring ultrashort laser pulsesAGENCY IND SCIENCE TECHN·Filed 1994·Granted Oct 24, 1995·16 cites·14 claims
- 4544US8770871B2Image processing device, printing device, and medium having recorded image processing programSAKAI HIROFUMI·Filed 2012·Granted Jul 8, 2014·0 cites·9 claims
- 4643US10363752B2Liquid discharge apparatus and liquid discharge methodSEIKO EPSON CORP·Filed 2018·Granted Jul 30, 2019·0 cites·4 claims
- 4742US10315432B2Discharging apparatus and method of discharging fluidSEIKO EPSON CORP·Filed 2017·Granted Jun 11, 2019·0 cites·6 claims
- 4842US2005008769A1Methods of manufacturing wiring pattern, organic electro luminescent element, color filter, plasma display panel, and liquid crystal display panel, and electronic apparatusSEIKO EPSON CORP·Filed 2004·Application pending·0 cites
- 4940US9048359B2Solar cell module and manufacturing method thereofIWADE TAKASHI·Filed 2011·Granted Jun 2, 2015·0 cites·9 claims
- 5037US2017072683A1Droplet ejection method, droplet ejection program, and droplet ejection apparatusSEIKO EPSON CORP·Filed 2016·Application pending·0 cites
Showing the top 50 of 52 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →