Patent ID: 7661602

Claim:
An identification code generation system for generating a printing identification code representing product identification information to be printed on products based on an identification code of each specific product which is stored in a memory accompanying said specific product; said printing identification code generation system comprising: identification information reading means for electronically reading in said identification code from said memory of said specific product; date information providing means for providing a numeric date code representing year, month and day as a production date of said specific product; and printing identification code generating means for converting said identification code read in from said memory by said identification information reading means into an alphanumeric identification code by a notation system of base N which is a positive integer greater than a base of a notation system by which said coded identification code is expressed so that said alphanumeric identification code has a number of digits less than said identification code, converting a part of said numeric date code provided by said date information providing means into an alphanumeric date code by said notation system of base N, and combining said alphanumeric identification code and said alphanumeric date code as said printing identification code.