| 摘要 |
PROBLEM TO BE SOLVED: To provide a card warranty system, a card and a card case for allowing a card collector to perform the trade, exchange, collection or the like of cards with security. SOLUTION: A customer A uses a computer 13-1 to be connected to a network 3, and performs the warranty registration of a card 15 to a server computer 7 of a management company 5. The server computer 7 updates a warranty flag 63 from 0 (warranty registration is not performed) to 1 (warranty registration is performed), and registers the flag as card information 11 with a database 9 and an IC chip 31. If the card 15 is forged, the customer A who is the holder of the card 15, from the computer 13-1, makes a request of the server computer 7 of the management company for the warranty fulfillment. If the warranty flag 63 of the card information 11 is 1 (warranty registration is performed), the management company 5 performs the warranty fulfillment for the customer A. |
