The information record curd, the information reading system and information you read and in the information

摘要

PROBLEM TO BE SOLVED: To provide an information recording card, the information read system of the information recording card and an information read/write system which enable recording of information in a high density at a low cost by simple constitution and prevention of illegal use without letting a third person read recorded contents from the viewpoint of privacy protection. SOLUTION: The information recording card, the information read system of the information recording card and the information read/write system are provided which enable of the recording of the information in a high density at a low cost by the simple constitution and the prevention of the illegal use without letting the third person read the recorded contents from the viewpoint of the privacy protection by printing/displaying recording items converted to color dots.