PROBLEM TO BE SOLVED: To provide an information providing system using a two-dimensional code that facilitates customer management based on sheets such as business cards, while allowing the newest information to be input at all times, and facilitating the attachment of the two-dimensional code to a sheet such as a business card.;SOLUTION: The information providing system using a two-dimensional code is provided which is characterized in that an address for accessing a predetermined site and/or a two-dimensional code for reading predetermined information is formed in the shape of a seal, so that the seal is placed on a sheet such as a business card to provide desired information in the form of the two-dimensional code.;COPYRIGHT: (C)2010,JPO&INPIT
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