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Patent applications and USPTO patent grants for Chae; Cheul Ock.The latest application filed is for "upper surface foreign material detecting device of ultra-thin transparent substrate".
Patent | Date |
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Upper surface foreign material detecting device of ultra-thin transparent substrate Grant 9,733,196 - Lee , et al. August 15, 2 | 2017-08-15 |
Upper Surface Foreign Material Detecting Device of Ultra-Thin Transparent Substrate App 20160327494 - Lee; Hyung Seok ;   et al. | 2016-11-10 |
Method of detecting foreign material on upper surface of transparent substrate using polarized light Grant 9,316,598 - Kim , et al. April 19, 2 | 2016-04-19 |
Apparatus and Method of Detecting Foreign Material on Upper Surface of Transparent Substrate Using Polarized Light App 20150316492 - Kim; Yeong Ryeol ;   et al. | 2015-11-05 |
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