Inventor · disambiguated record
Keiichi Fujii
Also filed as: FUJII KEIICHI
24 granted patents·19 pending applications·188 citations·filing 2001–2025
95Inventor score
Files withNUVOTON TECHNOLOGY CORP JAPAN15MATSUSHITA ELECTRIC INDUSTRIAL CO LTD10PANASONIC CORP6SHIMADZU CORP3KYOCERA CORP2
Top patents by PatentIndex Score
43 records- 0195US9418778B2Method of manufacturing a feedthroughKYOCERA CORP·Filed 2014·Granted Aug 16, 2016·17 cites·15 claims
- 0294US11467219B2Battery monitoring device, integrated circuit, and battery monitoring systemNUVOTON TECHNOLOGY CORP JAPAN·Filed 2020·Granted Oct 11, 2022·7 cites·19 claims
- 0386US10471266B2Hermetic feedthrough for an implantable medical deviceMEDTRONIC INC·Filed 2016·Granted Nov 12, 2019·2 cites·20 claims
- 0485US6977550B2AGC circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Dec 20, 2005·31 cites·12 claims
- 0584US9008779B2Insulator for a feedthroughKYOCERA CORP·Filed 2014·Granted Apr 14, 2015·21 cites·23 claims
- 0684US8670829B2Insulator for a feedthroughMORIOKA KENGO·Filed 2011·Granted Mar 11, 2014·20 cites·22 claims
- 0784US2025055287A1Battery management systemNUVOTON TECHNOLOGY CORP JAPAN·Filed 2024·Application pending·0 cites
- 0884US2025055296A1Battery management systemNUVOTON TECHNOLOGY CORP JAPAN·Filed 2024·Application pending·0 cites
- 0984US2025046887A1Battery management systemNUVOTON TECHNOLOGY CORP JAPAN·Filed 2024·Application pending·0 cites
- 1084US2025055295A1Battery management systemNUVOTON TECHNOLOGY CORP JAPAN·Filed 2024·Application pending·0 cites
- 1184US2025052824A1Battery management systemNUVOTON TECHNOLOGY CORP JAPAN·Filed 2024·Application pending·0 cites
- 1282US7649383B2Bidirectional level shift circuit and bidirectional bus systemPANASONIC CORP·Filed 2008·Granted Jan 19, 2010·11 cites·9 claims
- 1379US2024426929A1Battery pack management system and battery pack management methodNUVOTON TECHNOLOGY CORP JAPAN·Filed 2024·Application pending·0 cites
- 1479US2024429476A1Battery pack and battery pack management systemNUVOTON TECHNOLOGY CORP JAPAN·Filed 2024·Application pending·0 cites
- 1576US2024418794A1Battery monitoring deviceNUVOTON TECHNOLOGY CORP JAPAN·Filed 2024·Application pending·0 cites
- 1674US7203279B2Radiographic apparatus, and radiation detection signal processing methodSHIMADZU CORP·Filed 2005·Granted Apr 10, 2007·15 cites·19 claims
- 1773US7764797B2Speaker driving device and audio output systemPANASONIC CORP·Filed 2005·Granted Jul 27, 2010·8 cites·4 claims
- 1871US7605638B2Semiconductor integrated circuit including charge pump circuitPANASONIC CORP·Filed 2007·Granted Oct 20, 2009·12 cites·4 claims
- 1968US2025138101A1Battery packNUVOTON TECHNOLOGY CORP JAPAN·Filed 2025·Application pending·0 cites
- 2066US7015759B2AGC circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Mar 21, 2006·10 cites·20 claims
- 2165US7377691B2Radiographic apparatus that removes time lag by recursive computationSHIMADZU CORP·Filed 2004·Granted May 27, 2008·6 cites·4 claims
- 2261US2024410955A1Battery packNUVOTON TECHNOLOGY CORP JAPAN·Filed 2024·Application pending·0 cites
- 2360US7940940B2Muting circuit and semiconductor integrated circuitPANASONIC CORP·Filed 2006·Granted May 10, 2011·3 cites·2 claims
- 2460US2024110992A1Battery anomaly detection device and battery anomaly detection methodNUVOTON TECHNOLOGY CORP JAPAN·Filed 2023·Application pending·0 cites
- 2559US11965933B2Integrated circuit, battery monitoring device, and battery monitoring systemNUVOTON TECHNOLOGY CORP JAPAN·Filed 2020·Granted Apr 23, 2024·0 cites·12 claims
- 2656US11933854B2Battery management circuit, battery management system, and battery management networkNUVOTON TECHNOLOGY CORP JAPAN·Filed 2021·Granted Mar 19, 2024·0 cites·20 claims
- 2753US2024094303A1Battery state estimation device, battery state estimation system, and battery state estimation methodNUVOTON TECHNOLOGY CORP JAPAN·Filed 2023·Application pending·0 cites
- 2849US7474161B2Charge pump circuitPANASONIC CORP·Filed 2006·Granted Jan 6, 2009·3 cites·3 claims
- 2949US7313218B2Radiographic apparatus and radiation detection signal processing methodSHIMADZU CORP·Filed 2004·Granted Dec 25, 2007·6 cites·20 claims
- 3049US2014322426A1Method for extracting coffee liquid and extraction solvent for extracting coffee liquidFUJII KEIICHI·Filed 2014·Application pending·0 cites
- 3148US6562536B2Charge-controlling agent and toner using the sameDAINIPPON INK & CHEMICALS·Filed 2001·Granted May 13, 2003·3 cites·7 claims
- 3247US7359693B2Enclosure and substrate structure for a tuner moduleRFSTREAM CORP·Filed 2004·Granted Apr 15, 2008·1 cites·20 claims
- 3346US2007126496A1Semiconductor integrated circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Application pending·0 cites
- 3445US7388434B2BTL amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jun 17, 2008·1 cites·7 claims
- 3545US2005031079A1Radiographic apparatus and radiation detection signal processing methodFiled 2004·Application pending·0 cites
- 3644US7518431B2Semiconductor integrated circuit for processing audio and video signalsPANASONIC CORP·Filed 2005·Granted Apr 14, 2009·1 cites·5 claims
- 3744US7312650B2Step-down voltage output circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Dec 25, 2007·2 cites·3 claims
- 3844US7307465B2Step-down voltage output circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Dec 11, 2007·5 cites·12 claims
- 3943US6891407B2Analog signal level detecting apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted May 10, 2005·3 cites·3 claims
- 4040US2005031088A1Radiographic apparatus and radiation detection signal processing methodFiled 2004·Application pending·0 cites
- 4138US2005047615A1Audio signal amplifier and audio apparatus having the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Application pending·0 cites
- 4235US2007096819A1CMOS amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Application pending·0 cites
- 4333US2007024347A1Semiconductor integrated circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →