List Pattern structure and method of manufacturing the pattern structure Authors Jaeseung Chung, Dongouk Kim, Joonyong Park, Jihyun Bae, Bongsu Shin, Sunghoon Lee, Sukgyu Hahm, Jong G. Ok, Ilsun Yoon Country US Application# (Date) US 2016/0054498 (Jun 08, 2015) Registration# (Date) US 9784896 (Oct 10, 2017) Category Patents Link https://patents.google.com/patent/US9784896B2