| 摘要 |
PROBLEM TO BE SOLVED: To realize a credit card, which has an information recording part in a magnetic stripe or the like and in which the sum total of points in point service is indicated. SOLUTION: This card has information recording parts such as a magnetic stripe 2, an IC memory 3 or the like and an information displaying part 4, in which a magnetic recording system reversible displaying element containing magnetic field inductive magnetic powder in microcapsules as a reversible displaying element reversibly allowing to display and erase visible information or the like and, in addition, an information in response to the amount of money dealt with the credit card and the total sum information of informations are displayed visibly. |
