Patent ID: 8634632

Claim:
A paper sheet management system configured to obtain inputted information on a paper sheet, and to perform management such as registration and search of the information on the paper sheet comprising: a recognition-information extracting unit configured to extract recognition information printed on the paper sheet, the recognition information uniquely identifying the paper sheet; a paper-sheet information obtaining unit configured to obtain, as paper sheet information of the paper sheet, feature amount data showing features of the paper sheet; a paper-sheet information storage unit configured to store the recognition information extracted by the recognition-information extracting unit and the paper sheet information obtained by the paper-sheet information obtaining unit, such that the recognition information and the paper sheet information are related to each other; and a paper-sheet information searching unit configured to search predetermined recognition information in the paper-sheet information storage unit, and to output existence or nonexistence of the recognition information in the paper-sheet information storage unit and paper sheet information corresponding to the recognition information, wherein the feature amount data includes data showing the features of the paper sheets that vary across the ages, and the features of the paper sheets that vary across the ages include at least one of fold lines, stains, minute wrinkles, and color fade-out.