Inventor
LEE SUK KU
KR4 patents
Patents
4 patentsUS11993065B2May 28, 2024
Metal card manufacturing method
KONA I CO LTD2 citations67
US11586871B2Feb 21, 2023
Metal card and card manufacturing method
KONA I CO LTD2 citations67
US11416729B2Aug 16, 2022
Metal card manufacturing method
KONA I CO LTD2 citations67
US11009855B2May 18, 2021
Metal card and method for manufacturing the same
KONA I CO LTD1 citations56