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:
Jun. 16, 2026
Filed:
Nov. 28, 2024
Toppan Holdings Inc., Tokyo, JP;
Yasuhisa Miyazawa, Tokyo, JP;
Yuichi Hoshino, Tokyo, JP;
Seiya Koseki, Tokyo, JP;
Risa Hashimoto, Tokyo, JP;
Takumi Tanioka, Tokyo, JP;
Misa Sanpei, Tokyo, JP;
TOPPAN HOLDINGS INC., Tokyo, JP;
Abstract
An inkjet ink that sufficiently suppresses photodiscoloration and/or photofading of printed images and has excellent lightfastness and 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; and water and ethanol as a solvent, in which, when only trehalose is contained as a fixing agent, the compounding ratio of the trehalose is in the range of 7.5 mass % or more and 20.0 mass % or less based on the total mass of the inkjet ink and, when trehalose and reduced isomaltulose are contained as the fixing agent, the compounding ratio of the trehalose is in the range of 2.5 mass % or more and 15.0 mass % or less based on the total mass of the inkjet ink and the compounding ratio of the reduced isomaltulose is 10.0 mass % or less based on the total mass of the inkjet ink.