Inventor · disambiguated record
Keita Hirai
Also filed as: HIRAI KEITA
81 granted patents·20 pending applications·168 citations·filing 1992–2024
98Inventor score
Top patents by PatentIndex Score
101 records- 0197US10321609B2Cooling system and method of cooling electronic deviceFUJITSU LTD·Filed 2017·Granted Jun 11, 2019·26 cites·8 claims
- 0296US11247460B2Liquid discharging headBROTHER IND LTD·Filed 2020·Granted Feb 15, 2022·3 cites·11 claims
- 0395US10342164B2Rack mount-type information processing apparatus and rack mount-type information processing systemFUJITSU LTD·Filed 2017·Granted Jul 2, 2019·16 cites·14 claims
- 0495US9579891B2Liquid jetting apparatusBROTHER IND LTD·Filed 2016·Granted Feb 28, 2017·8 cites·10 claims
- 0592US11135843B2Liquid ejection headBROTHER IND LTD·Filed 2020·Granted Oct 5, 2021·2 cites·25 claims
- 0691US11155087B2Liquid discharge headBROTHER IND LTD·Filed 2020·Granted Oct 26, 2021·2 cites·10 claims
- 0791US11052658B2Head moduleBROTHER IND LTD·Filed 2020·Granted Jul 6, 2021·2 cites·15 claims
- 0891US11046077B2Liquid ejection headBROTHER IND LTD·Filed 2020·Granted Jun 29, 2021·2 cites·14 claims
- 0990US11116106B2Cooling device, cooling system, and method of coolingFUJITSU LTD·Filed 2020·Granted Sep 7, 2021·8 cites·5 claims
- 1090US10357966B2Liquid jetting head and method for manufacturing the sameBROTHER IND LTD·Filed 2018·Granted Jul 23, 2019·3 cites·16 claims
- 1189US10718554B2Manifold and information processing apparatusFUJITSU LTD·Filed 2017·Granted Jul 21, 2020·3 cites·16 claims
- 1289US10155380B2Liquid jetting apparatus and method of producing liquid jetting apparatusBROTHER IND LTD·Filed 2017·Granted Dec 18, 2018·2 cites·10 claims
- 1389US10080308B2Immersion cooling apparatusFUJITSU LTD·Filed 2017·Granted Sep 18, 2018·6 cites·12 claims
- 1489US9656467B2Piezoelectric actuator, liquid discharging apparatus and method for producing piezoelectric actuatorBROTHER IND LTD·Filed 2015·Granted May 23, 2017·3 cites·17 claims
- 1589US9044955B2Liquid jetting apparatusBROTHER IND LTD·Filed 2014·Granted Jun 2, 2015·5 cites·15 claims
- 1687US10864727B2Liquid discharge head and liquid discharge apparatus provided with the sameBROTHER IND LTD·Filed 2019·Granted Dec 15, 2020·2 cites·9 claims
- 1787US10471715B2Liquid discharge headBROTHER IND LTD·Filed 2018·Granted Nov 12, 2019·2 cites·22 claims
- 1887US9868285B2PrinterBROTHER IND LTD·Filed 2017·Granted Jan 16, 2018·2 cites·12 claims
- 1986US10245829B2Liquid jetting headBROTHER IND LTD·Filed 2018·Granted Apr 2, 2019·2 cites·20 claims
- 2086US9815283B2Liquid discharging apparatusBROTHER IND LTD·Filed 2016·Granted Nov 14, 2017·2 cites·20 claims
- 2184US11077663B2Head moduleBROTHER IND LTD·Filed 2020·Granted Aug 3, 2021·1 cites·16 claims
- 2284US10881019B2Cooling apparatusFUJITSU LTD·Filed 2019·Granted Dec 29, 2020·4 cites·14 claims
- 2384US9481172B2Liquid ejection apparatus and a method for producing liquid ejection apparatusBROTHER IND LTD·Filed 2015·Granted Nov 1, 2016·2 cites·11 claims
- 2483US9854710B2Information processing device and container for data centerFUJITSU LTD·Filed 2016·Granted Dec 26, 2017·3 cites·20 claims
- 2579US9358507B2Composite membraneHIRAI KEITA·Filed 2012·Granted Jun 7, 2016·3 cites·13 claims
- 2675US11685158B2Liquid ejection headBROTHER IND LTD·Filed 2021·Granted Jun 27, 2023·0 cites·11 claims
- 2775US11618256B2Liquid ejection headBROTHER IND LTD·Filed 2021·Granted Apr 4, 2023·0 cites·27 claims
- 2875US9321264B2Liquid ejection apparatus and method for manufacturing liquid ejection apparatusBROTHER IND LTD·Filed 2015·Granted Apr 26, 2016·2 cites·21 claims
- 2975US5238375APressure molding machine for various stepped articlesHIRAI KEITA·Filed 1992·Granted Aug 24, 1993·21 cites·1 claims
- 3074US11673389B2Liquid discharge headBROTHER IND LTD·Filed 2021·Granted Jun 13, 2023·0 cites·14 claims
- 3174US11565522B2Head moduleBROTHER IND LTD·Filed 2021·Granted Jan 31, 2023·0 cites·13 claims
- 3272US11097539B2Liquid ejection headBROTHER IND LTD·Filed 2020·Granted Aug 24, 2021·0 cites·13 claims
- 3372US10906308B2Liquid jetting apparatus and method of producing liquid jetting apparatusBROTHER IND LTD·Filed 2020·Granted Feb 2, 2021·0 cites·12 claims
- 3472US10611149B2Liquid jetting apparatus and method of producing liquid jetting apparatusBROTHER IND LTD·Filed 2019·Granted Apr 7, 2020·0 cites·6 claims
- 3571US11071232B2Liquid immersion cooling apparatusFUJITSU LTD·Filed 2020·Granted Jul 20, 2021·1 cites·13 claims
- 3671US10847484B2Electronic device including first substrate having first and second surfaces opposite from each other, second substrate facing first surface, and drive circuit facing second surfaceBROTHER IND LTD·Filed 2018·Granted Nov 24, 2020·1 cites·14 claims
- 3771US10525702B2Composite substrate that prevents flexible print circuit board from peeling off from drive interconnect substrateBROTHER IND LTD·Filed 2018·Granted Jan 7, 2020·1 cites·12 claims
- 3870US10406810B2Liquid jetting apparatus and method of producing liquid jetting apparatusBROTHER IND LTD·Filed 2018·Granted Sep 10, 2019·0 cites·5 claims
- 3970US2023295362A1Glutarimide resinKANEKA CORP·Filed 2023·Application pending·0 cites
- 4070US2023295358A1Glutarimide resinKANEKA CORP·Filed 2023·Application pending·0 cites
- 4169US2024002566A1Optical member and method for producing sameKANEKA CORP·Filed 2023·Application pending·0 cites
- 4268US5864955ACutting tool of a titanium alloy complexFiled 1997·Granted Feb 2, 1999·28 cites·7 claims
- 4368US2024125561A1Cooling deviceFUJITSU LTD·Filed 2023·Application pending·0 cites
- 4468US2022078946A1Information processing device and electronic device cooling methodFUJITSU LTD·Filed 2021·Application pending·0 cites
- 4566US10556430B2Liquid jetting headBROTHER IND LTD·Filed 2019·Granted Feb 11, 2020·0 cites·18 claims
- 4665US11273637B2Liquid ejection headBROTHER IND LTD·Filed 2020·Granted Mar 15, 2022·0 cites·13 claims
- 4765US10500860B2Actuator deviceBROTHER IND LTD·Filed 2018·Granted Dec 10, 2019·0 cites·6 claims
- 4864US10226925B2Liquid discharging apparatusBROTHER IND LTD·Filed 2017·Granted Mar 12, 2019·0 cites·2 claims
- 4963US10201975B2Actuator deviceBROTHER IND LTD·Filed 2018·Granted Feb 12, 2019·0 cites·17 claims
- 5062US11892246B2Cooling deviceFUJITSU LTD·Filed 2022·Granted Feb 6, 2024·0 cites·5 claims
Showing the top 50 of 101 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →