| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a non-contact IC tag device for accurately ascertaining the using state of an article, and accurately discriminating a plurality of using states. <P>SOLUTION: In the non-contact IC tag device having a plurality of IC chips 11, 12, and 31, those IC chips are connected to resonance circuits configured of antenna coils 12, 22 and 32 and capacitors 13, 23 and 33, respectively and those resonance circuits are respectively provided with capacitors 14, 24 and 34 for resonance frequency adjustment formed in parallel with the capacitors. The non-contact IC tag device 1 is provided with cutting parts 2 to 6 for removing a portion of the capacitors for resonance frequency adjustment from at least one of the plurality of resonance circuits, and as the cutting part is cut and disconnected, regarding one of the plurality of resonance circuits, the communicative minimum power or maximum communication distance of a reader/writer before and after the disconnection is changed. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
