| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an authenticity determination device that can visually determine the authenticity of an object in a simple and reliable manner without eliminating the need of preparation for a special device when a determination is made whether the device is authentic or not. <P>SOLUTION: An authenticity determination sheet is provided in a color variable film on at least part of a base material sheet. The color variable film is composed of a self-organizable polymer, wherein a color in the color variable film varies by applying an external force to a region where the color variable film is provided. <P>COPYRIGHT: (C)2012,JPO&INPIT |
