Inventor · disambiguated record
Keiko Matsubara
Also filed as: MATSUBARA KEIKO
17 granted patents·14 pending applications·385 citations·filing 2000–2022
94Inventor score
Top patents by PatentIndex Score
31 records- 0198US6589696B2Negative active material for rechargeable lithium battery and method of preparing sameSAMSUNG SDI CO LTD·Filed 2001·Granted Jul 8, 2003·158 cites·16 claims
- 0294US6733922B2Carbonaceous material and lithium secondary batteries comprising sameSAMSUNG SDI CO LTD·Filed 2002·Granted May 11, 2004·62 cites·13 claims
- 0392US7851086B2Electrode material for a lithium secondary battery, lithium secondary battery, and preparation method for the electrode material for a lithium secondary batterySAMSUNG SDI CO LTD·Filed 2008·Granted Dec 14, 2010·17 cites·5 claims
- 0489US7658871B2Method of preparing a negative active material for rechargeable lithium batterySAMSUNG SDI CO LTD·Filed 2008·Granted Feb 9, 2010·9 cites·3 claims
- 0589US6641955B1Anode material for lithium secondary battery, an electrode for lithium secondary battery and a lithium secondary batterySAMSUNG SDI CO LTD·Filed 2000·Granted Nov 4, 2003·31 cites·7 claims
- 0684US7479351B2Electrode material for a lithium secondary battery, lithium secondary battery, and preparation method for the electrode material for a lithium secondary batterySAMSUNG SDI CO LTD·Filed 2004·Granted Jan 20, 2009·22 cites·7 claims
- 0780US7326497B2Graphite-containing composition, negative electrode for a lithium secondary battery, and lithium secondary batterySAMSUNG SDI CO LTD·Filed 2002·Granted Feb 5, 2008·19 cites·6 claims
- 0880US6797434B1Negative active material for rechargeable lithium battery, electrode for rechargeable lithium battery, rechargeable lithium battery and method of preparing negative active material for rechargeable lithium secondary batterySAMSUNG SDI CO LTD·Filed 2000·Granted Sep 28, 2004·19 cites·8 claims
- 0978US6767669B2Negative electrode for lithium rechargeable batteries and lithium rechargeable batteriesSAMSUNG SDI CO LTD·Filed 2001·Granted Jul 27, 2004·15 cites·6 claims
- 1077US6869730B2Electrode material, method for preparing same, electrode, and battery comprising sameSAMSUNG SDI CO LTD·Filed 2002·Granted Mar 22, 2005·14 cites·13 claims
- 1170US6733546B2Method of preparing an anode material for lithium secondary batterySAMSUNG SDI CO LTD·Filed 2003·Granted May 11, 2004·7 cites·7 claims
- 1268US2024204181A1Negative electrode slurry for lithium-ion secondary battery and method for preparing the sameLG ENERGY SOLUTION LTD·Filed 2022·Application pending·0 cites
- 1366US7223498B2Electrode for a lithium secondary battery and a lithium secondary battery comprising the sameSAMSUNG SDI CO LTD·Filed 2004·Granted May 29, 2007·7 cites·6 claims
- 1465US10199640B2Negative electrode material for secondary battery and secondary battery using the sameLG CHEMICAL LTD·Filed 2014·Granted Feb 5, 2019·0 cites·11 claims
- 1565US2023095690A1Mixed spice and masking composition that contains sameHOUSE FOODS CORP·Filed 2021·Application pending·0 cites
- 1664US6855459B2Electrode for rechargeable lithium battery, method of preparing same and rechargeable lithium battery having the sameSAMSUNG SDI CO LTD·Filed 2003·Granted Feb 15, 2005·5 cites·9 claims
- 1763US2024039042A1Solid electrolyte for solid-state battery and method for preparing the sameLG ENERGY SOLUTION LTD·Filed 2022·Application pending·0 cites
- 1863US2023387383A1Negative electrode for secondary battery, negative electrode slurry and method for manufacturing negative electrodeLG ENERGY SOLUTION LTD·Filed 2021·Application pending·0 cites
- 1960US10115963B2Negative electrode material for secondary battery and secondary battery using the sameLG CHEMICAL LTD·Filed 2014·Granted Oct 30, 2018·0 cites·15 claims
- 2060US2025300168A1Positive Electrode Active Material, Positive Electrode Active Material Slurry, Positive Electrode, Lithium-Ion Secondary Battery and Method for Preparing Positive Electrode Active MaterialLG ENERGY SOLUTION LTD·Filed 2022·Application pending·0 cites
- 2160US2024162422A1Positive Electrode Active Material, Positive Electrode Active Material Slurry, Positive Electrode, Lithium-Ion Secondary Battery and Method for Preparing Positive Electrode Active MaterialLG ENERGY SOLUTION LTD·Filed 2022·Application pending·0 cites
- 2260US2022393151A1Anode active material, and anode and secondary battery comprising same anode active materialLG ENERGY SOLUTION LTD·Filed 2020·Application pending·0 cites
- 2360US2024274869A1A sulfide-based solid electrolyte and a method for preparing sulfide-based solid electrolyteLG ENERGY SOLUTION LTD·Filed 2022·Application pending·0 cites
- 2458US2023100631A1Nonaqueous Electrolyte Solution and Lithium Secondary Battery Comprising the SameLG ENERGY SOLUTION LTD·Filed 2020·Application pending·0 cites
- 2555US2023369577A1Positive Electrode Active Material, Positive Electrode Active Material Slurry, Positive Electrode, Lithium-Ion Secondary Battery and Method for Preparing Positive Electrode Active MaterialLG ENERGY SOLUTION LTD·Filed 2021·Application pending·0 cites
- 2652US2023036765A1Aqueous Slurry for Positive Electrode, Positive Electrode Composition, Lithium-Ion Secondary Battery Including Said Positive Electrode Composition, and Methods for Manufacturing SameLG ENERGY SOLUTION LTD·Filed 2020·Application pending·0 cites
- 2748US10862115B2Anode material for secondary battery and non-aqueous electrolyte secondary battery using the sameLG CHEMICAL LTD·Filed 2016·Granted Dec 8, 2020·0 cites·10 claims
- 2848US8048568B2Negative active material for rechargeable lithium battery and rechargeable lithium batterySAMSUNG SDI CO LTD·Filed 2004·Granted Nov 1, 2011·0 cites·6 claims
- 2946US2005042128A1Negative active material for rechargeable lithium battery, method of preparing same and rechargeable lithium batteryFiled 2004·Application pending·0 cites
- 3045US2005074672A1Negative active material for rechargeable lithium battery, method of preparing same and rechargeable lithium battery using sameFiled 2004·Application pending·0 cites
- 3144US2004214085A1Negative active material for rechargeable lithium battery, method of preparing same, and rechargeable lithium batteryFiled 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →