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Patent Searching and Data


Title:
SECURITY ELEMENT AND SECURITY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/107065
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a security element that is difficult to duplicate and a security system. A security element has a film with multiple through holes. The average opening diameter of the through holes is 0.1 µm to 50 µm. At least one of the through holes is a through hole A for which the ratio S1/S0 of the through hole area S1 to the area S0 of a circle, which has a diameter that is the long axis of the through hole, is 0.1 to less than 0.95.

Inventors:
SAWADA Hirokazu (4000 Kawashiri, Yoshida-cho, Haibara-gu, Shizuoka 96, 〒4210396, JP)
Application Number:
JP2018/040737
Publication Date:
June 06, 2019
Filing Date:
November 01, 2018
Export Citation:
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Assignee:
FUJIFILM CORPORATION (26-30, Nishiazabu 2-chome Minato-k, Tokyo 20, 〒1068620, JP)
International Classes:
B42D25/346; B42D25/23; B42D25/24; B42D25/29; G06K7/14; G06K19/02; G06K19/06; G06T7/60; G07D7/12
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (XYMAX Iwamoto-cho Building 6F, 3-3 Iwamoto-cho 2-chome, Chiyoda-k, Tokyo 32, 〒1010032, JP)
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