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:
Sep. 08, 2015
Filed:
Nov. 21, 2011
Tsuyoshi Yamauchi, Tokyo-to, JP;
Mitsuru Kitamura, Tokyo-to, JP;
Manabu Yamamoto, Tokyo-to, JP;
Akiko Kitamura, Tokyo-to, JP;
Yoko Sekine, Tokyo-to, JP;
Tsuyoshi Yamauchi, Tokyo-to, JP;
Mitsuru Kitamura, Tokyo-to, JP;
Manabu Yamamoto, Tokyo-to, JP;
Akiko Kitamura, Tokyo-to, JP;
Yoko Sekine, Tokyo-to, JP;
DAI NIPPON PRINTING CO., LTD., Tokyo-to, JP;
Abstract
A main object of the invention is to provide a taggant particle group that has a plurality of authentication steps and an excellent anti-counterfeit effect and can be applied to various anti-counterfeit media. The invention attains the object by providing a taggant particle group which is an aggregate of taggant particles which individually have a plurality of identification information items, wherein one identification information item among the plurality of identification information items possessed by the individual particles is common identification information that is possessed in common by the taggant particles that constitute the taggant particle group, and another identification information item among the plurality of identification information items possessed by the individual particles is non-common identification information of which the authenticity can be determined in combination with other identification information items possessed by other taggant particles that constitute the taggant particle group.