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Patent Searching and Data


Title:
METHOD FOR DETECTING AN INVISIBLE MARK ON A CARD
Document Type and Number:
WIPO Patent Application WO/2012/099337
Kind Code:
A1
Abstract:
The present invention relates to a method for detecting a mark that is invisible in the visible light region. Here, the invisible mark is displayed on a card using a characteristic according to which the color of light is changed by means of a refractive index difference according to media in the visible light region. According to the method for detecting the invisible mark, it may be quickly determined whether the card is a counterfeit card in an investigation. In addition, since it is unnecessary to repeatedly inspect the card to be checked using various wavelengths, the time required for determining whether the card is a counterfeit card may be reduced.

Inventors:
LEE, Joong (202dong 301ho Hyundai 2Cha Apt, 278-1 Nokbeon-dong Eunpyeong-gu, Seoul 122-020, 122-020, KR)
이중 (서울시 은평구 녹번동 278-1 현대2차아파트 202동 301호, 122-020 Seoul, 122-020, KR)
KANG, Tae-Yi (103dong 1308ho Munhwachon Hyundai Apt, Hongje 3-dong Seodaemun-gu, Seoul 120-764, 120-764, KR)
강태이 (서울시 서대문구 홍제3동 문화촌현대아파트, 120-764 Seoul, 120-764, KR)
KIM, Byoung Hyun (204ho 126-28 Sangdo-dong, Dongjak-gu, Seoul 156-030, 156-030, KR)
Application Number:
KR2011/009806
Publication Date:
July 26, 2012
Filing Date:
December 19, 2011
Export Citation:
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Assignee:
REPUBLIC OF KOREA(NATIONAL FORENSIC SERVICE DIRECTOR MINISTRY OF PUBLIC ADMINISTRATION AND SECRUITY (331-1 Sinwol 7-dong, Yangcheon-gu, Seoul 158-707, 158-707, KR)
대한민국(관리부서:행정안전부 국립과학수사연구원장) (서울시 양천구 신월7동 331-1, 158-707 Seoul, 158-707, KR)
LEE, Joong (202dong 301ho Hyundai 2Cha Apt, 278-1 Nokbeon-dong Eunpyeong-gu, Seoul 122-020, 122-020, KR)
이중 (서울시 은평구 녹번동 278-1 현대2차아파트 202동 301호, 122-020 Seoul, 122-020, KR)
KANG, Tae-Yi (103dong 1308ho Munhwachon Hyundai Apt, Hongje 3-dong Seodaemun-gu, Seoul 120-764, 120-764, KR)
강태이 (서울시 서대문구 홍제3동 문화촌현대아파트, 120-764 Seoul, 120-764, KR)
International Classes:
G07D7/12; G06K7/10
Attorney, Agent or Firm:
PATENT LAW FIRM GRAND KOREA (2F Bubong Bldg. 735-36 Yeoksam-dong, Gangnam-gu, Seoul 135-080, 135-080, KR)
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Claims: