Inventor · disambiguated record
Donggyu Chang
Also filed as: CHANG DONGGYU
15 granted patents·12 pending applications·16 citations·filing 2014–2025
87Inventor score
Top patents by PatentIndex Score
27 records- 0194US10833329B2Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active materialSAMSUNG SDI CO LTD·Filed 2017·Granted Nov 10, 2020·6 cites·14 claims
- 0287US11201328B2Nickel active material precursor for lithium secondary battery, method for producing nickel active material precursor, nickel active material for lithium secondary battery produced by method, and lithium secondary battery having cathode containing nickel active materialSAMSUNG SDI CO LTD·Filed 2017·Granted Dec 14, 2021·3 cites·15 claims
- 0387US10050259B2Production method for negative electrode active material for lithium secondary battery, and lithium secondary batterySAMSUNG ELECTRONICS CO LTD·Filed 2014·Granted Aug 14, 2018·5 cites·7 claims
- 0487US2024387803A1Cathode active material for lithium secondary battery, and lithium secondary battery comprising cathode including cathode active materialSAMSUNG SDI CO LTD·Filed 2024·Application pending·0 cites
- 0585US12322791B2Positive active material for rechargeable lithium battery, preparing method thereof and rechargeable lithium battery including the sameSAMSUNG SDI CO LTD·Filed 2024·Granted Jun 3, 2025·0 cites·8 claims
- 0682US11302919B2Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active materialSAMSUNG SDI CO LTD·Filed 2017·Granted Apr 12, 2022·1 cites·15 claims
- 0780US11757092B2Positive active material for rechargeable lithium battery, method of preparing the same and rechargeable lithium battery including the sameSAMSUNG SDI CO LTD·Filed 2019·Granted Sep 12, 2023·1 cites·17 claims
- 0879US12080882B2Cathode active material for lithium secondary battery, and lithium secondary battery comprising cathode including cathode active materialSAMSUNG SDI CO LTD·Filed 2021·Granted Sep 3, 2024·0 cites·12 claims
- 0978US2025391841A1Positive active material for rechargeable lithium battery, preparing method thereof and rechargeable lithium battery including the sameSAMSUNG SDI CO LTD·Filed 2025·Application pending·0 cites
- 1077US2023282825A1Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active materialSAMSUNG SDI CO LTD·Filed 2023·Application pending·0 cites
- 1176US12300807B2Positive active material for rechargeable lithium battery, preparing method thereof and rechargeable lithium battery including the sameSAMSUNG SDI CO LTD·Filed 2022·Granted May 13, 2025·0 cites·20 claims
- 1276US11152610B2Cathode active material for lithium secondary battery, and lithium secondary battery comprising cathode including cathode active materialSAMSUNG SDI CO LTD·Filed 2019·Granted Oct 19, 2021·0 cites·15 claims
- 1376US2023163298A1Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active materialSAMSUNG SDI CO LTD·Filed 2023·Application pending·0 cites
- 1474US11742482B2Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active materialSAMSUNG SDI CO LTD·Filed 2021·Granted Aug 29, 2023·0 cites·14 claims
- 1573US11552294B2Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active materialSAMSUNG SDI CO LTD·Filed 2020·Granted Jan 10, 2023·0 cites·23 claims
- 1672US2025270110A1Positive electrode active material for rechargeable lithium battery, method of manufacturing the same, and rechargeable lithium battery including the sameSAMSUNG SDI CO LTD·Filed 2024·Application pending·0 cites
- 1769US2025192171A1Positive electrode active material and rechargeable lithium battery including the sameSAMSUNG SDI CO LTD·Filed 2024·Application pending·0 cites
- 1869US2024166531A1Positive active material for rechargeable lithium battery, preparing method thereof and rechargeable lithium battery including the sameSAMSUNG SDI CO LTD·Filed 2023·Application pending·0 cites
- 1968US2024076200A1Positive active material for rechargeable lithium battery, preparing method thereof, and rechargeable lithium battery including the sameSAMSUNG SDI CO LTD·Filed 2023·Application pending·0 cites
- 2067US2025273657A1Positive electrode active material and positive electrode and lithium secondary battery containing the sameSAMSUNG SDI CO LTD·Filed 2025·Application pending·0 cites
- 2165US2023416111A1Method of preparing positive active material for rechargeable lithium batterySAMSUNG SDI CO LTD·Filed 2023·Application pending·0 cites
- 2261US11955632B2Positive active material precursor, positive active material, method of preparing the same, positive electrode including the same and rechargeable lithium battery including the sameSAMSUNG SDI CO LTD·Filed 2020·Granted Apr 9, 2024·0 cites·20 claims
- 2359US11456458B2Nickel-based active material precursor for lithium secondary battery, preparing method thereof, nickel-based active material for lithium secondary battery formed thereof, and lithium secondary battery comprising positive electrode including the nickel-based active materialSAMSUNG SDI CO LTD·Filed 2021·Granted Sep 27, 2022·0 cites·28 claims
- 2456US11309542B2Nickel-based active material for lithium secondary battery, preparing method thereof, and lithium secondary battery including positive electrode including the sameSAMSUNG SDI CO LTD·Filed 2017·Granted Apr 19, 2022·0 cites·18 claims
- 2552US11569503B2Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active materialSAMSUNG SDI CO LTD·Filed 2017·Granted Jan 31, 2023·0 cites·25 claims
- 2651US2016190570A1Anode active material for lithium secondary battery, composition for anode including same, and lithium secondary batterySAMSUNG ELECTRONICS CO LTD·Filed 2014·Application pending·0 cites
- 2740US2018151876A1Nickel-based active material for lithium secondary battery, method of preparing nickel-based active material, and lithium secondary battery including positive electrode including nickel-based active materialSAMSUNG SDI CO LTD·Filed 2017·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Donggyu Chang files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →