The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 2019
Filed:
Sep. 04, 2015
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Yuko Aoyama, Tokyo, JP;
Toshihisa Yamakawa, Tokyo, JP;
Atsuhiro Sabashi, Tokyo, JP;
Daiki Katou, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
Provided are an information recording object and a reading device devised so that embedded information is difficult to guess. The information recording objectprovided with a combined image comprising an image Cprinted in a lustrous layerand an image Cformed on the image Cand printed in a transparent layeris characterized in that: the image Cand the image Care each printed with an ink for which the amount of reflected light differs according to viewing angle; for the combined image, one image is visible depending on the viewing angle; the image Cis an image in which there is a regularity in feature points in a spatial frequency domain F; and the image Cis an image in which the feature points in a spatial frequency domain Fare disposed at positions that block said regularity.