DL

Dae-Youp Lee

KC Korea Kumho Petrochemical Co.: 1 patents #5 of 8Top 65%
📍 Cheongnam-myeon, KR: #1 of 1 inventorsTop 100%
Overall (1997): #162,717 of 185,788Top 90%
1
Patents 1997

Issued Patents 1997

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5667931 Positive photoresist composition containing quinone diazide 5-triazine esterification compound Ki Dae KIM, Ji-Hong Kim, Seong Ju Kim 1997-09-16