YC

Yi Sik Choi

Overall (All Time): #2,892,914 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9988741 Heat treatment method and heat treatment device for single crystal sapphire Hee Choon Lee, Sung-Hwan Moon, Gye Won Jang, Bok Kee Na 2018-06-05