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:
May. 12, 2020
Filed:
Jan. 05, 2019
Applicant:
Toppan Printing Co., Ltd., Tokyo, JP;
Inventors:
Mihoko Okawa, Tokyo, JP;
Hideki Ochiai, Tokyo, JP;
Koji Ichikawa, 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 25/435 (2014.01); G02B 5/30 (2006.01); B41M 3/14 (2006.01); B42D 25/41 (2014.01); B42D 25/36 (2014.01); B42D 25/378 (2014.01); B42D 25/23 (2014.01); B42D 25/47 (2014.01); B42D 25/391 (2014.01); B42D 25/24 (2014.01); B42D 25/29 (2014.01); B42D 25/21 (2014.01); B42D 25/382 (2014.01); B42D 25/387 (2014.01);
U.S. Cl.
CPC ...
B42D 25/364 (2014.10); B41M 3/14 (2013.01); B42D 25/21 (2014.10); B42D 25/23 (2014.10); B42D 25/24 (2014.10); B42D 25/29 (2014.10); B42D 25/36 (2014.10); B42D 25/378 (2014.10); B42D 25/382 (2014.10); B42D 25/387 (2014.10); B42D 25/391 (2014.10); B42D 25/41 (2014.10); B42D 25/435 (2014.10); B42D 25/47 (2014.10); G02B 5/30 (2013.01); G02B 5/3016 (2013.01); G02B 5/3025 (2013.01); G02B 5/3033 (2013.01);
Abstract
An anti-counterfeiting medium includes a recording medium, a polarizer layer arranged on a part of the recording medium. The polarizer layer is formed thereon with a low extinction-ratio area that forms an image portion where a polarizer exhibits an extinction ratio lower than in a portion other than the low extinction-ratio area of the polarizer layer. The recording medium is formed thereon with an image portion that is a part of the recording medium and has a nature different from that of a portion other than the part of the recording medium.