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. 15, 2026
Filed:
Mar. 29, 2024
Toppan Holdings Inc., Tokyo, JP;
Yasuhisa Miyazawa, Tokyo, JP;
Seiya Koseki, Tokyo, JP;
Yuichi Hoshino, Tokyo, JP;
Masatoshi Saito, Tokyo, JP;
Risa Hashimoto, Tokyo, JP;
Hiromitsu Uchiyama, Tokyo, JP;
TOPPAN HOLDINGS INC., Tokyo, JP;
Abstract
This invention aims to provide an inkjet ink capable of sufficiently suppressing the photodiscoloration and/or photofading of printed images and maintaining the lightfastness not only when the inkjet ink is stored and used in a low humidity environment (about 20% RH) but when the inkjet ink is stored and used in a normal humidity environment (about 50% RH), and a tablet (tablet printed matter) including printed parts printed with the inkjet ink. An inkjet ink according to this embodiment contains: Blue No. 1 as a food dye in the range of 0.1 mass % or more and 2.5 mass % or less based on the total mass of the inkjet ink; and reduced isomaltulose as a fixing agent in the range of 5.7 times or more and 16.2 times or less the mass of the Blue No. 1.