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. 27, 2025
Filed:
Oct. 14, 2022
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
NIPPON KAYAKU KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An anthraquinone compound represented by formula (1): (where Rand Rrepresent —H, a C1-C12 alkyl group, a C1-C12 alkyl group, a halogen atom, —COR, —OCOR, —COR, a cyano group, or —CF, R, R, Rand Rrepresent —H, a C1-C4 alkyl group, a C1-C4 alkoxy group, a halogen atom, —COR, —OCOR, —COR, a cyano group, or —CF. Rand Rrepresent —H, a C1-C12 alkyl group, or a C1-C12 alkoxy group. Rrepresents a C1-C12 alkyl group, or a substituent represented by formula (a) (where Rrepresents —H, a C1-C8 alkyl group, or a C1-C8 alkoxy group) or formula (b) (where Rrepresents —H or a C1-C8 alkyl group); however, at least one of Rthrough Rrepresents a halogen atom, —COR, —COR, a cyano group, or —CF).