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:
Jan. 29, 2019
Filed:
Aug. 28, 2013
Applicant:
Toppan Printing Co., Ltd., Tokyo, JP;
Inventors:
Hideki Ochiai, Tokyo, JP;
Mihoko Nagayoshi, Tokyo, JP;
Kota Aono, Tokyo, JP;
Yuki Kotegawa, Tokyo, JP;
Assignee:
TOPPAN PRINTING CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B42D 25/364 (2014.01); B42D 25/45 (2014.01); B41M 3/14 (2006.01); G02B 5/30 (2006.01); B42D 15/00 (2006.01); B42D 25/29 (2014.01);
U.S. Cl.
CPC ...
B42D 25/364 (2014.10); B41M 3/14 (2013.01); B42D 15/00 (2013.01); B42D 25/29 (2014.10); B42D 25/45 (2014.10); G02B 5/3041 (2013.01); B41M 3/148 (2013.01); B42D 2033/26 (2013.01); B42D 2035/36 (2013.01);
Abstract
An anti-counterfeit medium includes a portion having optical transparency, a retardation layer facing the portion and including regions whose slow axis directions are different from each other, and a polarizing layer facing the retardation layer at a position of the portion. The anti-counterfeit medium includes only the polarizing layer as a polarizer. A portion out of the anti-counterfeit medium where the portion, the retardation layer, and the polarizing layer form a stacked structure has optical transparency.