Inventor
NAM JUNG BONG
KR4 patents
Patents
4 patentsUS10262322B2Apr 16, 2019
Fingerprint recognition card and method for operating fingerprint recognition card
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US10340720B2Jul 2, 2019
Power supply method and electronic card using the same
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US11100491B2Aug 24, 2021
Electronic card and method of operating electronic card
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US10749365B2Aug 18, 2020
Power supply method and electronic card using the same
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