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:
Apr. 06, 2010
Filed:
Nov. 27, 2007
Hiroyuki Matsumoto, Kita-ku, JP;
Noriko Kajiura, Kita-ku, JP;
Yutaka Ishii, Kita-ku, JP;
Yasuo Murakami, Kita-ku, JP;
Hiroyuki Matsumoto, Kita-ku, JP;
Noriko Kajiura, Kita-ku, JP;
Yutaka Ishii, Kita-ku, JP;
Yasuo Murakami, 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 can provide a magenta coloring matter having a highly vivid hue suitable for inkjet recording, a high fastness to recorded matters, and an excellent storage stability; wherein Rrepresents a benzyl group wherein the phenyl group of the benzyl group may be further substituted by a methyl group, a chlorine atom or a nitro group, 1-naphthylmethyl group or the like, and Rrepresents a hydrogen atom, an alkyl group or the like, respectively.