HC

Hyun Joon Cho

PK Pkl: 2 patents #4 of 11Top 40%
Overall (All Time): #2,146,856 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7377984 Method for cleaning a photomask Yong Dae Kim, Jong Min Kim, Han Byul KANG, Sang Soo Choi 2008-05-27
7186301 Device and method for cleaning photomask Yong Dae Kim, Jong Min Kim, Han Byul KANG, Sang Soo Choi 2007-03-06