Patent ID: 7199714

Claim:
A goods genuineness/counterfeit discrimination method using a plurality of IC tags each having a function of storing genuineness/counterfeit discrimination information for confirming that said plurality of IC tags are mounted on the same goods and store the genuineness/counterfeit discrimination information and a genuineness/counterfeit discrimination equipment for receiving said genuineness/counterfeit discrimination information from said IC tags to use it for genuineness/counterfeit discrimination, said method comprising the steps of: reading information stored in a plurality of IC tags mounted on goods which is originally mounted with a first predetermined number of IC tags by means of said genuineness/counterfeit discrimination equipment; and discriminating genuineness/counterfeit of said goods by determining, by means of said genuineness/counterfeit discrimination equipment, whether there are more than a second predetermined number of said read-out IC tags with genuineness/counterfeit discrimination information indicating that said read-out IC tags are mounted on the same goods, said second predetermined number being smaller than said first predetermined number.