YC

Yoon-Sik Chung

DC Dongjin Semichem Co.: 2 patents #38 of 252Top 20%
📍 Mado-myeon, KR: #80 of 204 inventorsTop 40%
Overall (All Time): #2,191,515 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6767687 Polymer for chemically amplified resist and a resist composition using the same Deog-Bae Kim, Hyun Jin Kim, Yong-Joon Choi 2004-07-27
6743881 Chemically amplified resist and a resist composition Deog-Bae Kim, Hyeon Jin Kim, Yong-Joon Choi 2004-06-01