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:
Aug. 31, 2010
Filed:
Nov. 07, 2007
Yutaka Ishii, Kita-ku, JP;
Noriko Kajiura, Kita-ku, JP;
Hiroyuki Matsumoto, Kita-ku, JP;
Yasuo Murakami, Kita-ku, JP;
Tadayuki Kiyoyanagi, Kita-ku, JP;
Yutaka Ishii, Kita-ku, JP;
Noriko Kajiura, Kita-ku, JP;
Hiroyuki Matsumoto, Kita-ku, JP;
Yasuo Murakami, Kita-ku, JP;
Tadayuki Kiyoyanagi, Kita-ku, JP;
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention relates to a novel anthrapyridone compound represented by the following formula (1) or a salt thereof and provides a magenta coloring matter having a very vivid hue suitable for inkjet recording, being strong in fastnesses of recorded matters, and having an excellent storage stability: wherein, Rrepresents a hydrogen atom, an alkyl group and the like, Rrepresents a hydrogen atom or a methoxy group, and Rrepresents an alkyl group which may have an aryl group, a heterocycle group, a sulfonic acid group, a carboxy group, an alkoxycarbonyl group, an acyl group, a carbamoyl group, a cyano group, an alkoxy group, a phenoxy group, a hydroxy group, a nitro group and the like on the alkyl group and further may have a substituent on the aryl group and the heterocycle group respectively.