DETECTION TAG, BODY TO BE DETECTED USING THIS DETECTION TAG, DETECTION METHOD FOR THIS OBJECT TO BE DETECTED, PAPER TUBE WITH THIS DETECTION TAG AFFIXED, AND DETERMINATION METHOD FOR PRINTING PAPER SHEET WOUND AROUND THIS PAPER TUBE

摘要

PROBLEM TO BE SOLVED: To provide a detection tag and the like, capable of intensifying reflected waves reflected from the detection tag without shortening the distance between the detection tag and an antenna. SOLUTION: This detection tag 20, having a first resonance tag 8 printed with a coil 8A having a prescribed resonance frequency, includes a second resonance tag 9 having the same resonance frequency as that of the first resonance tag at a position adjacent to the first resonance tag 8. The second resonance tag 9 includes a coil 9A printed in the opposite direction to the winding direction of the coil 8A of the first resonance tag 8. COPYRIGHT: (C)2004,JPO