Inventor · disambiguated record
Keitaro Otsuki
Also filed as: OTSUKI KEITARO
21 granted patents·14 pending applications·68 citations·filing 2009–2025
93Inventor score
Top patents by PatentIndex Score
35 records- 0194US8932762B2Active material and positive electrode and lithium-ion second battery using sameTDK CORP·Filed 2013·Granted Jan 13, 2015·11 cites·10 claims
- 0290US8936871B2Active material and positive electrode and lithium-ion second battery using sameSANO ATSUSHI·Filed 2009·Granted Jan 20, 2015·11 cites·3 claims
- 0389US8445135B2Method of manufacturing active material, active material, electrode, and lithium-ion secondary batterySANO ATSUSHI·Filed 2010·Granted May 21, 2013·6 cites·13 claims
- 0488US8993171B2Active material, electrode containing the active material, lithium secondary battery including the electrode, and method for making active materialSANO ATSUSHI·Filed 2011·Granted Mar 31, 2015·6 cites·3 claims
- 0588US8821763B2Active material and method of manufacturing active materialSANO ATSUSHI·Filed 2009·Granted Sep 2, 2014·11 cites·16 claims
- 0687US10985371B2Negative electrode active material layer with controlled reflectance and lithium ion secondary batteryTDK CORP·Filed 2019·Granted Apr 20, 2021·2 cites·7 claims
- 0783US10230108B2Active material, method for manufacturing active material, electrode, and lithium ion secondary batterySANO ATSUSHI·Filed 2012·Granted Mar 12, 2019·3 cites·17 claims
- 0882US10611639B2Active material, method for manufacturing active material, electrode, lithium ion secondary battery, and method for manufacturing lithium ion secondary batterySANO ATSUSHI·Filed 2012·Granted Apr 7, 2020·3 cites·7 claims
- 0982US8142750B2Method of manufacturing active materialSANO ATSUSHI·Filed 2010·Granted Mar 27, 2012·4 cites·4 claims
- 1081US9564641B2Active material, electrode, lithium ion secondary battery, and method for manufacturing active materialOTSUKI KEITARO·Filed 2012·Granted Feb 7, 2017·4 cites·18 claims
- 1181US8734539B2Method of manufacturing active material containing vanadium and method of manufacturing lithium-ion secondary battery containing such active materialTOKITA KOUJI·Filed 2010·Granted May 27, 2014·5 cites·7 claims
- 1278US8734987B2Active material, electrode containing same, lithium-ion secondary battery with the electrode, and method of manufacturing active materialSANO ATSUSHI·Filed 2011·Granted May 27, 2014·2 cites·8 claims
- 1372US11757098B2Negative electrode active material layer with controlled reflectance and lithium ion secondary batteryTDK CORP·Filed 2021·Granted Sep 12, 2023·0 cites·16 claims
- 1472US2025219146A1Power storage elementTDK CORP·Filed 2025·Application pending·0 cites
- 1569US10283773B2Active material, method of manufacturing active material, and lithium-ion secondary batteryTDK CORP·Filed 2018·Granted May 7, 2019·0 cites·5 claims
- 1664US11594730B2Electrode and lithium ion secondary batteryTDK CORP·Filed 2021·Granted Feb 28, 2023·0 cites·5 claims
- 1764US2024222699A1All-solid-state batteryTDK CORP·Filed 2022·Application pending·0 cites
- 1863US2024128496A1All-solid-state secondary batteryTDK CORP·Filed 2022·Application pending·0 cites
- 1963US2024128516A1All-solid-state secondary batteryTDK CORP·Filed 2022·Application pending·0 cites
- 2062US11539047B2Positive electrode and lithium ion secondary batteryTDK CORP·Filed 2019·Granted Dec 27, 2022·0 cites·19 claims
- 2162US9601802B2Nonaqueous electrolyte for lithium-ion secondary battery containing vanadium and lithium-ion secondary battery containing sameTDK CORP·Filed 2013·Granted Mar 21, 2017·0 cites·5 claims
- 2262US8906255B2Lithium-ion secondary batteryTDK CORP·Filed 2013·Granted Dec 9, 2014·0 cites·2 claims
- 2361US10062924B2Lithium-ion secondary battery with a negative electrode containing vanadiumTDK CORP·Filed 2013·Granted Aug 28, 2018·0 cites·9 claims
- 2461US9263736B2Positive electrode material for lithium ion secondary battery, positive electrode for lithium ion secondary battery, and lithium ion secondary batteryTDK CORP·Filed 2013·Granted Feb 16, 2016·0 cites·11 claims
- 2560US2023096228A1Lithium ion secondary batteryTDK CORP·Filed 2020·Application pending·0 cites
- 2658US10312523B2Lithium ion secondary batteryTDK CORP·Filed 2017·Granted Jun 4, 2019·0 cites·7 claims
- 2754US2010304217A1Active material, method of manufacturing active material, and lithium-ion secondary batteryTDK CORP·Filed 2010·Application pending·0 cites
- 2851US2015255795A1Lithium ion secondary batteryTDK CORP·Filed 2013·Application pending·0 cites
- 2944US2011052473A1Method of manufacturing active materialTDK CORP·Filed 2010·Application pending·0 cites
- 3043US2010233545A1Active material, method of manufacturing active material, electrode, and lithium-ion secondary batteryTDK CORP·Filed 2010·Application pending·0 cites
- 3141US2011052995A1Active material, electrode containing the same, lithium secondary battery provided therewith and method for manufacture of the active materialTDK CORP·Filed 2010·Application pending·0 cites
- 3241US2011052992A1Active material, lithium-ion secondary battery, and method of manufacturing active materialTDK CORP·Filed 2010·Application pending·0 cites
- 3339US2015333366A1Lithium ion secondary batteryTDK CORP·Filed 2015·Application pending·0 cites
- 3439US2015333362A1Lithium ion secondary batteryTDK CORP·Filed 2015·Application pending·0 cites
- 3539US2015333330A1Lithium ion secondary batteryTDK CORP·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →