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Chul-Yeun Choi

LC Lumens Co.: 1 patents #103 of 137Top 80%
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Patent #TitleCo-InventorsDate
9748459 Method for manufacturing improved chip-on-board type light emitting device package and such manufactured chip-on-board type light emitting device package Seung Hyun Oh, Pyoung Gug Kim, Yun Geon CHO, Chun Ki Min, Dae-Gil Jung 2017-08-29