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PROBLEM TO BE SOLVED : To provide a technology of painting a highly precise bar code capable of reading a large amount of information precisely on porcelain or earth ware even in a simple reading device of a cell-phone or the like.
SOLUTION : The ceramic has one or more two dimensional painted bar codes each having high definition of ≤350 μ and has the amount of information of one or more characters, signals or marks transmitting total amount of the information.
COPYRIGHT : (C)2008, JPO&INPIT