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:
Jan. 18, 2011
Filed:
Sep. 01, 2008
Daisuke Ono, Tokyo, JP;
Yutaka Ishii, Tokyo, JP;
Noriko Kajiura, Tokyo, JP;
Hiroyuki Matsumoto, Tokyo, JP;
Daisuke Ono, Tokyo, JP;
Yutaka Ishii, Tokyo, JP;
Noriko Kajiura, Tokyo, JP;
Hiroyuki Matsumoto, Tokyo, JP;
Nippon Kayaku Kabushiki, Tokyo, JP;
Abstract
The present invention relates to an anthrapyridone compound represented by the following formula (1): wherein, n represents an integer number of 1 to 3, Rrepresents a hydrogen atom, an alkyl group or the like, Rrepresents a hydrogen atom or a methoxy group, Rrepresents an anilino group having, as a substituent, at least one group selected from the group consisting of sulfo group, a carboxy group, an alkoxy group, a carbamoyl group, an cyano group, an alkyl group, an anilino group, a phenoxy group, an amino group, a hydroxy group and a mercapto group, an unsubstituted anilino group or the like, or a salt thereof, and provides a magenta coloring matter (compound) having high solubility in water and a hue and vividness which are suitable for inkjet recording and being excellent in fastnesses such as light fastness, moisture fastness and ozone gas fastness on recorded matter; and a magenta ink composition containing it.