Patent ID: 6371380
Filing Date: 2002-04-16
Classification: G06K

Abstract:
A memory IC tag which is stuck to the adherent surface of an object, having an information storing means storing therein prescribed information on said object and an antenna in a loop form connected to said information storing means, and reads out and writes said prescribed information in said information storing means via said antenna in response to a modulated magnetic-field generated from the exterior, said memory IC tag comprising;a substrate having said information storing means and said antenna; means for absorbing the modulated magnetic field generated from the exterior after said modulated magnetic field passes through the antenna so that said memory IC tag can read said prescribed information irrespective of the type of the material of the adherent surface of the object, said absorbing means including a magnetism absorbing member made from a high permeable material, provided between said substrate and the adherent surface of said object, and having an area at least sized to cover said antenna provided on said substrate; an adhesive member adhering said magnetism absorbing member to the substrate; and a gluing member adhering said magnetism absorbing member on the adherent surface of said object.