Inventor · disambiguated record
Takayuki Nakai
Also filed as: NAKAI TAKAYUKI
44 granted patents·4 pending applications·132 citations·filing 1990–2023
97Inventor score
Files withMITSUBISHI ELECTRIC CORP9RICOH CO LTD9SUMITOMO METAL MINING CO6NAKAI TAKAYUKI4PANASONIC CORP4
Top patents by PatentIndex Score
48 records- 0198US11724514B2Liquid discharging head, liquid discharging unit, and device for discharging liquidRICOH CO LTD·Filed 2022·Granted Aug 15, 2023·2 cites·23 claims
- 0297US10160226B2Liquid discharging head, liquid discharging unit, and device for discharging liquidKOHDA TOMOHIKO·Filed 2017·Granted Dec 25, 2018·11 cites·15 claims
- 0397US10005281B2Liquid ejection head, liquid ejection unit, and apparatus for ejecting liquidYOSHIDA TAKAHIRO·Filed 2015·Granted Jun 26, 2018·13 cites·17 claims
- 0494US10696057B2Liquid discharging head, liquid discharging unit, and device for discharging liquidKOHDA TOMOHIKO·Filed 2019·Granted Jun 30, 2020·3 cites·36 claims
- 0592US11420447B2Liquid discharging head, liquid discharging unit, and device for discharging liquidRICOH CO LTD·Filed 2020·Granted Aug 23, 2022·2 cites·15 claims
- 0688US12214600B2Liquid discharging head, liquid discharging unit, and device for discharging liquidRICOH CO LTD·Filed 2023·Granted Feb 4, 2025·0 cites·18 claims
- 0788US10538101B2Liquid discharging head, liquid discharging unit, and device for discharging liquidRICOH CO LTD·Filed 2018·Granted Jan 21, 2020·1 cites·12 claims
- 0888US10179452B2Liquid discharge head, liquid discharge device, and liquid discharge apparatusIWAMA MASAMI·Filed 2017·Granted Jan 15, 2019·3 cites·11 claims
- 0987US7982541B2AGC circuitPANASONIC CORP·Filed 2010·Granted Jul 19, 2011·10 cites·31 claims
- 1087US7944276B2Charge pump circuit and electronic apparatus provided with the samePANASONIC CORP·Filed 2008·Granted May 17, 2011·23 cites·18 claims
- 1187US7795967B2AGC circuitPANASONIC CORP·Filed 2008·Granted Sep 14, 2010·14 cites·24 claims
- 1282US11811373B2Class AB amplifier and operational amplifierMITSUBISHI ELECTRIC CORP·Filed 2018·Granted Nov 7, 2023·4 cites·9 claims
- 1381US10207509B2Liquid discharge head, liquid discharge device, and liquid discharge apparatusODAKA Toshimichi·Filed 2016·Granted Feb 19, 2019·2 cites·13 claims
- 1481US9427968B2Liquid discharge head and image forming apparatusKOHDA TOMOHIKO·Filed 2015·Granted Aug 30, 2016·2 cites·5 claims
- 1581US9017640B2Method for producing high-purity nickel surfaceSUMITOMO METAL MINING CO·Filed 2012·Granted Apr 28, 2015·3 cites·8 claims
- 1680US10141889B2Semiconductor integrated circuit, sensor reader, and sensor readout methodMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Nov 27, 2018·2 cites·16 claims
- 1778US11331930B2Liquid discharging head, liquid discharging unit, and device for discharging liquidRICOH CO LTD·Filed 2021·Granted May 17, 2022·0 cites·12 claims
- 1878US9677152B2Method for recovering lithiumASANO SATOSHI·Filed 2012·Granted Jun 13, 2017·4 cites·7 claims
- 1977US10399355B2Liquid discharge head, liquid discharge device, and liquid discharge apparatusNAKAI TAKAYUKI·Filed 2018·Granted Sep 3, 2019·1 cites·14 claims
- 2075US10000066B2Liquid discharge head, liquid discharge device, and liquid discharge apparatusNAKAI TAKAYUKI·Filed 2017·Granted Jun 19, 2018·1 cites·20 claims
- 2173US9375925B2Liquid-ejection head and image forming apparatusSHIMIZU TAKESHI·Filed 2015·Granted Jun 28, 2016·1 cites·7 claims
- 2271US10160216B2Droplet discharge head and image forming apparatus incorporating sameNAKAI TAKAYUKI·Filed 2016·Granted Dec 25, 2018·1 cites·6 claims
- 2371US9815285B2Liquid discharge head, liquid discharge device, and liquid discharge apparatusOTOME YUKIO·Filed 2016·Granted Nov 14, 2017·1 cites·20 claims
- 2470US8747787B2Method for producing raw material for ferronickel smelting from low grade nickel oxide oreKOBAYASHI HIROSHI·Filed 2011·Granted Jun 10, 2014·1 cites·13 claims
- 2570US7728651B2Drive circuit, voltage conversion device and audio systemPANASONIC CORP·Filed 2008·Granted Jun 1, 2010·9 cites·11 claims
- 2669US9499879B2Method for producing high-purity cobalt sulfate aqueous solutionSUMITOMO METAL MINING CO·Filed 2012·Granted Nov 22, 2016·1 cites·14 claims
- 2766US9847785B2Phase locked loop circuit and method of frequency adjustment of injection locked frequency dividerMITSUBISHI ELECTRIC CORP·Filed 2014·Granted Dec 19, 2017·2 cites·14 claims
- 2864US10668726B2Liquid ejection head, liquid ejection unit, and apparatus for ejecting liquidRICOH CO LTD·Filed 2018·Granted Jun 2, 2020·0 cites·14 claims
- 2964US9428820B2Method for producing cobalt sulfateSUMITOMO METAL MINING CO·Filed 2012·Granted Aug 30, 2016·1 cites·5 claims
- 3062US10792920B2Laminated substrate, liquid discharge head, and liquid discharge apparatusIWATA JUNICHI·Filed 2019·Granted Oct 6, 2020·0 cites·8 claims
- 3161US11273643B2Liquid discharge head, liquid discharge device, and liquid discharge apparatusRICOH CO LTD·Filed 2020·Granted Mar 15, 2022·0 cites·12 claims
- 3260US11135845B2Liquid discharge head, liquid discharge device, and liquid discharge apparatusRICOH CO LTD·Filed 2020·Granted Oct 5, 2021·0 cites·19 claims
- 3357US11230102B2Liquid discharge head, discharge device, and liquid discharge apparatusRICOH CO LTD·Filed 2020·Granted Jan 25, 2022·0 cites·20 claims
- 3457US9731980B2Processing device and processing method for hydrogen-sulphide-containing barren solutionSUMITOMO METAL MINING CO·Filed 2013·Granted Aug 15, 2017·0 cites·9 claims
- 3554US10259231B2Liquid discharge head including a filter and a supply channel, liquid discharge device, and liquid discharge apparatusODAKA Toshimichi·Filed 2018·Granted Apr 16, 2019·0 cites·11 claims
- 3654US9955093B2Switch control circuit, semiconductor apparatus, and magnetic ink reading apparatusMITSUBISHI ELECTRIC CORP·Filed 2014·Granted Apr 24, 2018·0 cites·6 claims
- 3752US2015315046A1Heavy-metal removal method and heavy-metal removal deviceSUMITOMO METAL MINING CO·Filed 2013·Application pending·0 cites
- 3850US10864746B2Liquid circulating apparatus and liquid ejecting apparatusOTOME YUKIO·Filed 2018·Granted Dec 15, 2020·0 cites·16 claims
- 3947US2015299007A1Neutralization treatment method and neutralizing agentSUMITOMO METAL MINING CO·Filed 2013·Application pending·0 cites
- 4046US2022126575A1Liquid discharge head, liquid discharge device, and liquid discharge apparatusOTOME YUKIO·Filed 2021·Application pending·0 cites
- 4145US9953980B2Operational amplifier circuitMITSUBISHI ELECTRIC CORP·Filed 2014·Granted Apr 24, 2018·0 cites·8 claims
- 4245US5051240AVolatile component detector with socket for sample receptacleKIRIN BREWERY·Filed 1990·Granted Sep 24, 1991·14 cites·2 claims
- 4344US9614498B2Active balun circuit and transformerMITSUBISHI ELECTRIC CORP·Filed 2014·Granted Apr 4, 2017·0 cites·14 claims
- 4443US9925785B2Liquid discharge head, liquid discharge device, and liquid discharge apparatusYOSHIDA TAKAHIRO·Filed 2016·Granted Mar 27, 2018·0 cites·10 claims
- 4540US10972102B2Interface circuitMITSUBISHI ELECTRIC CORP·Filed 2016·Granted Apr 6, 2021·0 cites·21 claims
- 4639US9923522B2Operational amplifier circuit and bias current supply methodMITSUBISHI ELECTRIC CORP·Filed 2014·Granted Mar 20, 2018·0 cites·16 claims
- 4736US11095258B2Class AB amplifier and operational amplifierMITSUBISHI ELECTRIC CORP·Filed 2017·Granted Aug 17, 2021·0 cites·16 claims
- 4833US2011267014A1Electrical load drive deviceNAKAI TAKAYUKI·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →