Inventor · disambiguated record
Chang Sik Ha
Also filed as: HA CHANG SIK · HA CHANG SUNG
11 granted patents·4 pending applications·2 citations·filing 2003–2024
79Inventor score
Files withNAT UNIV PUSAN IND UNIV COOP FOUND5KOLON INC3HA CHANG-SIK2IAC IN NAT UNIV CHUNGNAM2PUSAN NAT UNIV INDUSTRY-UNIV COOP FOUND2
Top patents by PatentIndex Score
15 records- 0173US2024279156A1Novel diamine compound, reactive monomer for polyimide precursor containing the same, and polyimide film prepared therefromNAT UNIV PUSAN IND UNIV COOP FOUND·Filed 2024·Application pending·0 cites
- 0267US8969241B2Organic-inorganic hybrid mesoporous silica material modified by sulfonic acid group for selective adsorption of metal ions and method of manufacturing the sameHA CHANG-SIK·Filed 2012·Granted Mar 3, 2015·1 cites·10 claims
- 0366US2024199532A1Novel diamine compound having low hygroscopicity and low dielectric constant, its polymer, and polyimide film using the polymerNAT UNIV PUSAN IND UNIV COOP FOUND·Filed 2023·Application pending·0 cites
- 0465US9745490B2PVC-based metallopolymer nanocomposites, and coating composition and coating film comprising samePUSAN NAT UNIV INDUSTRY-UNIV COOP FOUND·Filed 2013·Granted Aug 29, 2017·1 cites·20 claims
- 0558US12158376B2Temperature-sensitive film and temperature measurement system using thereofNAT UNIV PUSAN IND UNIV COOP FOUND·Filed 2021·Granted Dec 3, 2024·0 cites·3 claims
- 0658US9656982B2Acid dianhydride, method for preparing same, and polyimide prepared therefromKOLON INC·Filed 2014·Granted May 23, 2017·0 cites·9 claims
- 0758US2025066285A1Intrinsic low dielectric constant polyimide film based on novel diamine having -cf3 group and 1,4-diisopryopylbenzene unitNAT UNIV PUSAN IND UNIV COOP FOUND·Filed 2024·Application pending·0 cites
- 0857US9676739B2Acid dianhydride, method for preparing same, and polyimide prepared therefromKOLON INC·Filed 2014·Granted Jun 13, 2017·0 cites·8 claims
- 0956US9657140B2Polyimide and film using sameKOLON INC·Filed 2015·Granted May 23, 2017·0 cites·12 claims
- 1049US8975207B2Method for manufacturing adsorptive ball for recovering precious metals and flow through-continuous deionization (FT-CDI) apparatus using the sameIAC IN NAT UNIV CHUNGNAM·Filed 2012·Granted Mar 10, 2015·0 cites·3 claims
- 1146US8828476B2Polyimide nanocomposite and method for preparing sameHA CHANG-SIK·Filed 2012·Granted Sep 9, 2014·0 cites·10 claims
- 1244US10029231B2Organic-inorganic hybrid nanoporous silica material and method for preparing sameNAT UNIV PUSAN IND UNIV COOP FOUND·Filed 2015·Granted Jul 24, 2018·0 cites·14 claims
- 1341US9096941B2Electrolytic cell for flow through-continuous deionizationIAC IN NAT UNIV CHUNGNAM·Filed 2012·Granted Aug 4, 2015·0 cites·3 claims
- 1433US9783639B2Diamine compound, and polyamic acid and polyimide using the samePUSAN NAT UNIV INDUSTRY-UNIV COOP FOUND·Filed 2015·Granted Oct 10, 2017·0 cites·12 claims
- 1533US2004159549A1Apparatus and method for fabricating metal fibers using electroformingFiled 2003·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Chang Sik Ha 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 →