| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a non-contact type information medium capable of suppressing transmission of various kinds of ions and preventing corrosion of an antenna. <P>SOLUTION: An antenna base material 20, a coil antenna 21 provided on one surface 20a of the antenna base material 20 and an IC chip mounted on the one surface 20a of the antenna base material 20 and connected to the coil antenna 21 are used to configure a non-contact type IC inlet. The non-contact type information medium is configured by laminating and bonding a pair of exterior base materials through an adhesive layer respectively to the one surface 20a of the antenna base material 20 including an exposed surface of the coil antenna 21 and the other surface 20b of the antenna base material 20 facing the one surface 20a. The cross section of the coil antenna 21 is a trapezoidal shape, and both ends of an upper surface 21b opposed to the lower surface 21a of the coil antenna 21 in contact with the one surface 20a of the antenna base material 20 and both side faces 21c and 21c are connected by a curved surface 21d projected to the outer side of the cross section (trapezoid) of the coil antenna 21. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
