| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for judging the authenticity of sheets for executing the non-destructive judgement of the type of filler and/or pigment contained in sheets and the difference of contents for all the sheets such as sheets requiring the prevention of the forgery/alteration of bank bills, stock certificates, securities such as credits and stamps and general print sheets and copy sheets. <P>SOLUTION: This method for judging the authenticity of sheets where at least either predetermined filler or predetermined pigment is filled in sheets or coated on the surfaces of sheets comprises a first authenticity judging process based on at least either the type of the predetermined filler or the type of the predetermined pigment and a second authenticity judging process based on at least either the loads of the predetermined filler or the loads of the predetermined pigment. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
