IDENTIFICATION MEDIUM FOR DETERMINING GENUINE ARTICLE, METHOD FOR FORMING IDENTIFICATION MARK, AND METHOD FOR DETERMINING GENUINE ARTICLE

摘要

PROBLEM TO BE SOLVED: To surely determine a genuine article without limiting a target medium and without being influenced by environment.SOLUTION: Surface temperature of the identification mark 3 put on the genuine article and showing that it is the genuine article is measured, the image of the identification mark 3 is read on the basis of the measured surface temperature, and the read image data of the identification mark 3 are registered as identification information of the genuine article. When determining whether the target article is the genuine one, surface temperature of the target article is measured, the image at a position corresponding to the identification mark is read on the basis of the measured surface temperature, and the read image data are collated with the registered image data. If they agree with each other, the target article is determined as the genuine one.