| 摘要 |
PROBLEM TO BE SOLVED: To make difficult an analysis of a forgery preventive structure using a latent image . SOLUTION: A forgery preventive medium includes: a display 15 formed by arranging marks 11 composed of dots on each of which printing is applied with a stealth ink on a background color region 12 in a matrix shape; projections 13 formed among a plurality of the mark parts 11 in a specified region of the display 15; and projections 14 formed on the marks 11 so as to surround the region in which a plurality of the projections 13 are formed in the display 15. COPYRIGHT: (C)2011,JPO&INPIT |
