| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an information recording medium and its attached object capable of performing highly accurate authenticity determination in which identification of a portion where information is thereon is difficult. <P>SOLUTION: The information recording medium 30 for configuring a geometric pattern by line portions 31b, 32b which are minutely demetallized makes a resonant area 32 difficult to be distinguished from the other non-resonant area, makes it difficult to be recognized that the information is added, and enables to perform the authenticity determination by providing a conductive portion on the line portion 32b of the resonant area 32. <P>COPYRIGHT: (C)2009,JPO&INPIT |
