Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9733196 | Upper surface foreign material detecting device of ultra-thin transparent substrate | Hyung Seok Lee, Yeong Ryeol Kim, Jin Yong Kim, Soung Jin Kim | 2017-08-15 |
| 9316598 | Method of detecting foreign material on upper surface of transparent substrate using polarized light | Yeong Ryeol Kim, Jin Yong Kim, Sang Tae Kim | 2016-04-19 |