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:
Mar. 16, 2010
Filed:
Nov. 28, 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 an anthrapyridone compound represented by the following formula (1): wherein, R represents a hydrogen atom, an alkyl group, a hydroxy lower alkyl group, a cyclohexyl group or a (mono- or di-alkylamino) alkyl group, X represents a cross-linking group represented by the formula:—NH—(CH2)-NH—  (201)wherein, n is 2 to 8and another cross-linking group, respectivelyor a salt thereof, a magenta ink composition containing the anthrapyridone compound, and a colored product therewith; said compound has a hue having a high vividness suitable for inkjet recording, a recorded matter therewith has strong fastnesses particularly such as light fastness and ozone fastness, and the ink composition has an excellent storage stability, whereby said compound is useful as a magenta coloring matter suitable for inkjet recording.