| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a forgery preventing printed material and a method of manufacturing the same having non-conventional sophisticated forgery preventing technology so as to prevent damage from forgery by an unauthorized copy. <P>SOLUTION: The forgery preventing printed material 1 includes a cut part or a through-hole 3 on a base material 2. The cut part or the through-hole 3 has a shape which is cut in an oblique direction with respect to a thickness direction of the base material 2, and a non-impact recording is made on a part from a cut surface of the base material 2 to a machined surface of the cut part or the through hole. Thereby, when the cut part or the through-hole is observed from an oblique direction at a predetermined angle with respect to the thickness direction of the base material of the forgery preventing printed material, specific information by the non-impact recording can be deciphered. When the forgery preventing printed material is observed from a direction different from the thickness direction of the base material and the predetermined oblique direction, the information by the non-impact recording cannot be deciphered. <P>COPYRIGHT: (C)2013,JPO&INPIT |
