Inventor · disambiguated record
Sung Kyun Chang
Also filed as: CHANG SUNG K · CHANG SUNG KYUN
95 granted patents·23 pending applications·200 citations·filing 2004–2023
99Inventor score
Top patents by PatentIndex Score
118 records- 0194US8026008B2Lithium secondary battery with improved cell characteristicsLG CHEMICAL LTD·Filed 2010·Granted Sep 27, 2011·13 cites·15 claims
- 0292US9391344B2Polymer electrolyte and lithium secondary battery including the sameLG CHEMICAL LTD·Filed 2013·Granted Jul 12, 2016·20 cites·22 claims
- 0392US8268198B2Precursor for preparation of lithium transition metal oxideSHIN HO SUK·Filed 2009·Granted Sep 18, 2012·17 cites·10 claims
- 0492US8206852B2Lithium-metal composite oxides and electrochemical device using the sameCHANG SUNG-KYUN·Filed 2007·Granted Jun 26, 2012·21 cites·16 claims
- 0592US7935444B2Cathode active material for lithium secondary batteryLG CHEMICAL LTD·Filed 2009·Granted May 3, 2011·10 cites·22 claims
- 0691US8394299B2Precursor for the preparation of a lithium composite transition metal oxideSHIN HO SUK·Filed 2009·Granted Mar 12, 2013·12 cites·13 claims
- 0790US8895190B2Preparation method of lithium-metal composite oxidesCHANG SUNG-KYUN·Filed 2007·Granted Nov 25, 2014·10 cites·20 claims
- 0888US9236610B2Cathode active material for lithium secondary batteryLG CHEMICAL LTD·Filed 2014·Granted Jan 12, 2016·4 cites·9 claims
- 0987US9331329B2Carbon-coated lithium iron phosphate of olivine crystal structure and lithium secondary battery using the sameLG CHEMICAL LTD·Filed 2012·Granted May 3, 2016·4 cites·18 claims
- 1087US8497039B2Cathode active material for lithium secondary batteryCHANG SUNG KYUN·Filed 2011·Granted Jul 30, 2013·5 cites·16 claims
- 1187US8449792B2Cathode based upon two kinds of compounds and lithium secondary battery comprising the sameCHANG SUNG KYUN·Filed 2011·Granted May 28, 2013·5 cites·5 claims
- 1285US9225036B2Additive for electrochemical element to improve safetyCHANG SUNG KYUN·Filed 2010·Granted Dec 29, 2015·4 cites·12 claims
- 1385US8835055B2Cathode active material for lithium secondary batteryCHANG SUNG KYUN·Filed 2012·Granted Sep 16, 2014·4 cites·13 claims
- 1484US9276259B2Secondary battery of improved lithium ion mobility and cell capacityLG CHEMICAL LTD·Filed 2014·Granted Mar 1, 2016·7 cites·6 claims
- 1584US8440354B2Cathode active material for lithium secondary batteryCHANG SUNG KYUN·Filed 2011·Granted May 14, 2013·3 cites·10 claims
- 1683US8492032B2Cathode active material for lithium secondary batteryCHANG SUNG KYUN·Filed 2011·Granted Jul 23, 2013·3 cites·17 claims
- 1783US8277980B2Cathode active material for lithium secondary batteryCHANG SUNG KYUN·Filed 2010·Granted Oct 2, 2012·3 cites·5 claims
- 1882US12155072B2Precursor particle for preparation of cathode active material for secondary battery and novel precursor powder containing sameL&F CO LTD·Filed 2023·Granted Nov 26, 2024·0 cites·15 claims
- 1982US9172122B2Battery moduleLG CHEMICAL LTD·Filed 2014·Granted Oct 27, 2015·3 cites·14 claims
- 2082US8993174B2Electrode assembly having novel structure and secondary battery using the sameLG CHEMICAL LTD·Filed 2013·Granted Mar 31, 2015·3 cites·32 claims
- 2182US8481213B2Cathode active material for lithium secondary batteryCHANG SUNG KYUN·Filed 2011·Granted Jul 9, 2013·2 cites·22 claims
- 2281US9023525B2Cathode active material for lithium secondary batteryCHANG SUNG KYUN·Filed 2009·Granted May 5, 2015·4 cites·13 claims
- 2381US7745040B2Safety device for preventing overcharge of secondary batteries and secondary batteries therewithLG CHEMICAL LTD·Filed 2005·Granted Jun 29, 2010·4 cites·11 claims
- 2479US9142836B2Anode for secondary batteryLG CHEMICAL LTD·Filed 2013·Granted Sep 22, 2015·2 cites·15 claims
- 2579US8329339B2Cathode active material for lithium secondary batteryCHANG SUNG KYUN·Filed 2010·Granted Dec 11, 2012·2 cites·13 claims
- 2676US2025125348A1Cathode active material and non-aqueous electrolyte secondary battery including sameL&F CO LTD·Filed 2022·Application pending·0 cites
- 2775US8993167B2Cathode materials and lithium secondary battery containing the sameCHANG SUNG KYUN·Filed 2010·Granted Mar 31, 2015·2 cites·6 claims
- 2875US7759006B2Electrode active material for lithium secondary batteryLG CHEMICAL LTD·Filed 2005·Granted Jul 20, 2010·2 cites·6 claims
- 2974US7785734B2Secondary battery having an improved safetyLG CHEMICAL LTD·Filed 2005·Granted Aug 31, 2010·2 cites·11 claims
- 3073US9118075B2Cathode active material for lithium secondary batteryCHANG SUNG KYUN·Filed 2010·Granted Aug 25, 2015·1 cites·11 claims
- 3173US8377594B2Cathode active material for lithium secondary batteryLG CHEMICAL LTD·Filed 2010·Granted Feb 19, 2013·1 cites·7 claims
- 3273US8048551B2Battery safety device and battery having the sameLG CHEMICAL LTD·Filed 2005·Granted Nov 1, 2011·2 cites·14 claims
- 3372US9819048B2Method of manufacturing secondary batteryLG CHEMICAL LTD·Filed 2013·Granted Nov 14, 2017·1 cites·14 claims
- 3472US8859148B2Electrode active material for lithium secondary batteryPARK SINYOUNG·Filed 2010·Granted Oct 14, 2014·1 cites·14 claims
- 3572US2022135428A1Transition Metal Precursor Having Low Tap Density And Lithium Transition Metal Oxide Having High Particle StrengthLG CHEMICAL LTD·Filed 2022·Application pending·0 cites
- 3672US2025273665A1Positive electrode active material and all-solid-state secondary battery comprising sameL&F CO LTD·Filed 2022·Application pending·0 cites
- 3771US12002956B2Precursor particle for preparation of cathode active material for secondary battery and novel precursor powder containing sameL&F CO LTD·Filed 2019·Granted Jun 4, 2024·0 cites·18 claims
- 3871US9083033B2Method for preparing anode active materialLG CHEMICAL LTD·Filed 2013·Granted Jul 14, 2015·1 cites·14 claims
- 3971US7754385B2Anode active material with improved electrochemical properties and electrochemical device comprising the sameLG CHEMICAL LTD·Filed 2009·Granted Jul 13, 2010·1 cites·10 claims
- 4070US9083021B2Method for preparing anode active materialLG CHEMICAL LTD·Filed 2013·Granted Jul 14, 2015·1 cites·13 claims
- 4168US10559821B2Cathode active material and lithium secondary battery comprising the sameLG CHEMICAL LTD·Filed 2017·Granted Feb 11, 2020·0 cites·6 claims
- 4268US9083022B2Electrode active material for lithium secondary batteryLG CHEMICAL LTD·Filed 2014·Granted Jul 14, 2015·0 cites·6 claims
- 4368US8574733B2Protection circuit for secondary battery and secondary battery comprising the sameCHANG SUNG KYUN·Filed 2006·Granted Nov 5, 2013·1 cites·8 claims
- 4468US7695867B2Method for regulating terminal voltage of cathode during overdischarge and cathode active material for lithium secondary batteryLG CHEMICAL LTD·Filed 2004·Granted Apr 13, 2010·8 cites·2 claims
- 4567US9905325B2Precursor for preparing lithium composite transition metal oxide and method for preparing the sameLG CHEMICAL LTD·Filed 2016·Granted Feb 27, 2018·0 cites·5 claims
- 4667US9431143B2Precursor for preparing lithium composite transition metal oxide and method for preparing the sameLG CHEMICAL LTD·Filed 2014·Granted Aug 30, 2016·0 cites·10 claims
- 4767US7737661B2Secondary battery having constant-voltage deviceLG CHEMICAL LTD·Filed 2005·Granted Jun 15, 2010·1 cites·8 claims
- 4866US9093678B2Electrode active material for lithium secondary batteryLG CHEMICAL LTD·Filed 2014·Granted Jul 28, 2015·0 cites·18 claims
- 4966US8974970B2Cathode active material for lithium secondary batteryLG CHEMICAL LTD·Filed 2014·Granted Mar 10, 2015·0 cites·11 claims
- 5065US12381205B2Positive electrode active material for lithium secondary batteryL&F CO LTD·Filed 2020·Granted Aug 5, 2025·0 cites·10 claims
Showing the top 50 of 118 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →