Il Hoon Choi

2 Patents

• US121042952024

  Security Fabric Having Improved Security and Identification Properties

  KOREA MINTING, SECURITY PRINTING & ID CARD OPERATING CORPORATION

  0 cites
• US120239522024

  Security Item Using Intensity of Fluorescent Materials, and User Identification System Using Same

  KOREA MINTING, SECURITY PRINTING & ID CARD OPERATING CORPORATION

  0 cites