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. 14, 2021
Filed:
Dec. 03, 2018
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Takashi Ito, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
A thermal transfer sheet is provided, which can be produced with enhanced working efficiency and is identifiable, and a thermal transfer printing device which uses the thermal transfer sheet is also provided. The thermal transfer sheet includes a substrate, and a yellow dye layer, a magenta dye layer and a cyan dye layer disposed on the substrate. An interval between the yellow dye layer and the magenta dye layer is different from an interval between the magenta dye layer and the cyan dye layer. Alternatively, the yellow dye layer and the magenta dye layer overlap partially, and the magenta dye layer and the cyan dye layer overlap partially. The transfer printing device identifies the type of the thermal transfer sheet based on the interval between the dye layers or the widths of the overlaps.