SECURITY SHEET
First Claim
1. A security sheet having an engraving layer laid on a support layer, the engraving layer having a sheet surface on which an identification image for identifying an individual is engraved, the security sheet comprising:
- a visible image formed on the sheet surface, the visible image non-engraved and being identical in details to the engraved identification image.
1 Assignment
0 Petitions
Accused Products
Abstract
A security sheet having with high anti-forgery/falsification property has an engraving layer including a sheet surface provided with an engraved identification image and a visible image non-engraved and being identical in details to the identification image so as to allow observation by comparison. For example, when a policeman questions a suspicious person at night to ask that person to present an identification card, the policeman checks the engraved identification image through tactile sense and visual sense. At the same time, the policeman checks the engraved identification image and the non-engraved visible image identical in details thereto through observation by comparison between both images by visual sense and through face-to-face observation of the person. With this, identity of the person can be authenticated by making use of tactile sense and visual sense complementarily.
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Citations
19 Claims
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1. A security sheet having an engraving layer laid on a support layer, the engraving layer having a sheet surface on which an identification image for identifying an individual is engraved, the security sheet comprising:
a visible image formed on the sheet surface, the visible image non-engraved and being identical in details to the engraved identification image. - View Dependent Claims (2, 3, 4, 19)
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5. A security sheet having an engraving layer laid on a support layer, the engraving layer having a sheet surface on which an identification image for identifying an individual is engraved, the security sheet comprising:
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a watermark engraving area for watermark engraving and a raised engraving area for raised engraving that are provided on the sheet surface; the watermark engraving area in which the identification image watermark-engraved; and the raised engraving area in which the identification image is raised-engraved. - View Dependent Claims (6, 7, 8)
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9. A security sheet having a support layer interposed between a pair of engraving layers, wherein
a common identification image for identifying an individual watermark-engraved in each engraving layer, the common identification images being positioned so as to overlap each other in a layer direction.
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12. A security sheet having an engraving layer laid on a support layer, the engraving layer having a sheet surface on which an identification image for identifying an individual is engraved, the security sheet comprising:
a security mark provided on the sheet surface and having a property of becoming visible and obvious by ultraviolet irradiation, the security mark with a portion chipped off by an engraving of the identification image. - View Dependent Claims (13, 14, 15, 16, 17, 18)
Specification