The present embodiment includes a base substrate 67 made of paper, resin such as plastic or glass epoxy, a radio ID chip 68 which is either made in or embedded in the substrate 67, an antenna 69 which is formed on the surface of the base substrate 67, a lead terminal 70 through which a signal is supplied to the antenna 69, and a covering body 71 with which the substrate 67 and the antenna 69 are c