YH

Yang-Soo Ha

HC Heesung Material Co.: 1 patents #13 of 33Top 40%
📍 Osan-si, KR: #238 of 372 inventorsTop 65%
Overall (All Time): #4,144,474 of 4,157,543Top 100%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10454043 Heterocyclic compound and organic light-emitting element using same Mi Jin Kim, Kee Yong Kim, Jin-Seok Choi, Dae-Hyuk CHOI, Sung Jin Eum +1 more 2019-10-22