Inventor · disambiguated record
Kei Hiruma
Also filed as: HIRUMA KEI
27 granted patents·24 pending applications·88 citations·filing 2003–2023
94Inventor score
Top patents by PatentIndex Score
51 records- 0195US8066345B2Method for setting up drive signalKOMORI SADAHARU·Filed 2009·Granted Nov 29, 2011·29 cites·7 claims
- 0294US8123324B2Method for setting up drive signalKOMORI SADAHARU·Filed 2009·Granted Feb 28, 2012·30 cites·7 claims
- 0380US8668296B2Method of driving liquid ejection head and drive signal generation device for liquid ejection headHIRUMA KEI·Filed 2011·Granted Mar 11, 2014·3 cites·11 claims
- 0479US7753474B2Droplet ejection apparatus, method for recovering droplet ejection head, method for forming thin film, and liquid crystal displaySEIKO EPSON CORP·Filed 2007·Granted Jul 13, 2010·9 cites·12 claims
- 0575US8383211B2Method of forming thin filmSEIKO EPSON CORP·Filed 2008·Granted Feb 26, 2013·4 cites·4 claims
- 0672US11161352B2Ink jet textile printing inkSEIKO EPSON CORP·Filed 2019·Granted Nov 2, 2021·0 cites·8 claims
- 0770US12344749B2Water-based composition and coloring methodSEIKO EPSON CORP·Filed 2021·Granted Jul 1, 2025·0 cites·12 claims
- 0869US12091562B2Composition for aqueous ink jet and method for producing recorded productSEIKO EPSON CORP·Filed 2019·Granted Sep 17, 2024·0 cites·7 claims
- 0966US12264250B2Coloring composition and coloring methodSEIKO EPSON CORP·Filed 2022·Granted Apr 1, 2025·0 cites·14 claims
- 1065US11999180B2Recording method and recording deviceSEIKO EPSON CORP·Filed 2021·Granted Jun 4, 2024·0 cites·20 claims
- 1164US12291641B2Metal pigment composition and coloring methodSEIKO EPSON CORP·Filed 2022·Granted May 6, 2025·0 cites·13 claims
- 1264US7794781B2Film formation method, electro-optical device manufacturing method and electronic apparatusSEIKO EPSON CORP·Filed 2006·Granted Sep 14, 2010·2 cites·9 claims
- 1364US2023416553A1Water-Based Coloring Composition, Coloring Method, Pigment Dispersion Liquid, And Metal Pigment Producing MethodSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 1464US2023272235A1Ink Jet Ink Composition And Recording MethodSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 1563US2023312945A1Pigment Composition And Coloring MethodSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 1663US2023303866A1Coloring Composition, Coloring Method, And Pigment DispersionSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 1763US2023303848A1Coloring Composition, Coloring Method, And Pigment DispersionSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 1862US12305046B2Ink jet ink composition and ink jet printing methodSEIKO EPSON CORP·Filed 2023·Granted May 20, 2025·0 cites·14 claims
- 1962US7748825B2Droplet discharge method, droplet discharge apparatus, manufacturing method for liquid crystal device, liquid crystal device, and electronic apparatusSEIKO EPSON CORP·Filed 2006·Granted Jul 6, 2010·1 cites·7 claims
- 2061US11976204B2Composition for aqueous ink jetSEIKO EPSON CORP·Filed 2019·Granted May 7, 2024·0 cites·4 claims
- 2161US8313702B2Gel manufacturing apparatusIDE KATSUYA·Filed 2010·Granted Nov 20, 2012·1 cites·13 claims
- 2259US8991958B2Method of driving liquid ejection head and drive signal generation device for liquid ejection headSEIKO EPSON CORP·Filed 2014·Granted Mar 31, 2015·0 cites·11 claims
- 2359US7224418B2Method, program, and apparatus for manufacturing electrooptical panel, and method for manufacturing electronic deviceSEIKO EPSON CORP·Filed 2004·Granted May 29, 2007·0 cites·9 claims
- 2459US2023312958A1Recording Method And Recording DeviceSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 2557US2006198945A1Dilution method for liquid material used for forming an alignment film, manufacturing method for liquid-crystal device, and electronic equipmentSEIKO EPSON CORP·Filed 2006·Application pending·0 cites
- 2656US2023311409A1Method For Manufacturing Three-Dimensional Shaped Object, And Three-Dimensional Shaping ApparatusSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 2755US2021095142A1Ink Jet CompositionSEIKO EPSON CORP·Filed 2020·Application pending·0 cites
- 2853US12109812B2Ink jet printing method and ink jet printing apparatusSEIKO EPSON CORP·Filed 2021·Granted Oct 8, 2024·0 cites·13 claims
- 2953US7215406B2Device for arranging liquid drops, electro-optical panel, electro-optical device, electronic apparatus, method of arranging liquid drops, method of manufacturing electro-optical panel, and method of manufacturing electronic apparatusSEIKO EPSON CORP·Filed 2004·Granted May 8, 2007·4 cites·3 claims
- 3052US8780317B2Film forming method, film forming device, liquid crystal arrangement method, liquid crystal arrangement device, liquid crystal device, liquid crystal device production method and electronic equipmentHIRUMA KEI·Filed 2009·Granted Jul 15, 2014·0 cites·11 claims
- 3152US2011014365A1Device and its manufacturing method, electro-optical device and its manufacturing method, and electronic equipmentSEIKO EPSON CORP·Filed 2010·Application pending·0 cites
- 3251US2012041076A1Gel forming solution and method for producing gelHIRUMA KEI·Filed 2011·Application pending·0 cites
- 3350US7713593B2Surface treatment method, manufacturing method of color filter substrate, and manufacturing method of electro-optical deviceSEIKO EPSON CORP·Filed 2006·Granted May 11, 2010·0 cites·2 claims
- 3450US7535544B2Various methods of manufacture of electro-optical panels, etc. involving a device and method of discharging liquid drops of an alignment film in a single pass from plural nozzles of a drop discharge headSEIKO EPSON CORP·Filed 2004·Granted May 19, 2009·3 cites·16 claims
- 3550US2012033005A1Method for setting up drive signalKOMORI SADAHARU·Filed 2011·Application pending·0 cites
- 3648US7499143B2Liquid crystal discharging method, and liquid crystal discharging deviceSEIKO EPSON CORP·Filed 2004·Granted Mar 3, 2009·2 cites·3 claims
- 3748US2006165917A1Device and its manufacturing method, electro-optical device and its manufacturing method, and electronic equipmentSEIKO EPSON CORP·Filed 2006·Application pending·0 cites
- 3847US7542126B2Droplet ejection apparatus, method for forming functional film, apparatus for forming liquid crystal alignment film, method for forming liquid crystal alignment film of liquid crystal display, and liquid crystal displaySEIKO EPSON CORP·Filed 2007·Granted Jun 2, 2009·0 cites·19 claims
- 3946US7816277B2Method for forming deposit, droplet ejection apparatus, electro-optic device, and liquid crystal displaySEIKO EPSON CORP·Filed 2007·Granted Oct 19, 2010·0 cites·3 claims
- 4046US2006003088A1Method of forming thin filmSEIKO EPSON CORP·Filed 2005·Application pending·0 cites
- 4146US2013065968A1Gel production apparatus and gel production methodHIRUMA KEI·Filed 2012·Application pending·0 cites
- 4244US2007190267A1Composition for forming liquid crystal orientation film, apparatus for forming liquid orientation film, and liquid crystal displaySEIKO EPSON CORP·Filed 2007·Application pending·0 cites
- 4344US2022204787A1Ink Jet Ink Composition, Ink Set, And Recording MethodSEIKO EPSON CORP·Filed 2021·Application pending·0 cites
- 4442US9486769B2Method of manufacturing gel particles, and drive signal generation device for liquid ejection headHIRUMA KEI·Filed 2012·Granted Nov 8, 2016·0 cites·8 claims
- 4542US2008138499A1Liquid material arrangement method, device manufacturing method, and liquid material discharge deviceSEIKO EPSON CORP·Filed 2007·Application pending·0 cites
- 4641US2005064305A1Color filter substrate, manufacturing method thereof, electro-optical device, and electronic deviceSEIKO EPSON CORP·Filed 2004·Application pending·0 cites
- 4740US2004207800A1Droplet discharge method, droplet discharge apparatus, manufacturing method for liquid crystal device, liquid crystal device, and electronic apparatusSEIKO EPSON CORP·Filed 2003·Application pending·0 cites
- 4839US2016061828A1Gel sensorSEIKO EPSON CORP·Filed 2015·Application pending·0 cites
- 4938US2008032038A1Method for forming functional film and method for manufacturing liquid crystal displaySEIKO EPSON CORP·Filed 2007·Application pending·0 cites
- 5038US2006132557A1Liquid package, liquid droplet ejection device, electro-optic device, and electronic equipmentSEIKO EPSON CORP·Filed 2005·Application pending·0 cites
Showing the top 50 of 51 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Kei Hiruma files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →