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.

Date of Patent:
Jun. 29, 2021

Filed:

Jul. 31, 2018
Applicant:

Dai Nippon Printing Co., Ltd., Tokyo, JP;

Inventors:

Yoshimasa Kobayashi, Tokyo, JP;

Daijiro Sugihara, Tokyo, JP;

Munenori Ieshige, Tokyo, JP;

Makoto Hashiba, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/235 (2006.01); B41J 2/325 (2006.01); B41J 2/475 (2006.01); B41J 17/36 (2006.01); B41M 5/34 (2006.01); B41M 5/382 (2006.01); B41M 5/40 (2006.01); B41M 5/52 (2006.01); B41M 7/00 (2006.01);
U.S. Cl.
CPC ...
B41J 2/325 (2013.01); B41J 2/235 (2013.01); B41J 2/4753 (2013.01); B41J 17/36 (2013.01); B41M 5/345 (2013.01); B41M 5/382 (2013.01); B41M 5/40 (2013.01); B41M 5/52 (2013.01); B41M 7/0045 (2013.01);
Abstract

There is provided a thermal transfer sheet capable of being identified by a thermal transfer printing apparatus, as well as being capable of preventing color property changes in high-resolution printing and reducing production cost. The thermal transfer sheetof an embodiment includes a dye layerand a protective layeron one surface of a substrate. The protective layercontains an invisible light absorbing material and is provided with an identification markhaving at least one of a recessed portion and a protruding portion.


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