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. 13, 2015
Filed:
Dec. 14, 2011
Applicants:
Takashi Yoshimoto, Tokyo, JP;
Akira Kawaguchi, Tokyo, JP;
Kenji Ooshima, Tokyo, JP;
Inventors:
Assignee:
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/02 (2014.01); C09B 31/30 (2006.01); C09D 11/328 (2014.01); C07D 471/04 (2006.01);
U.S. Cl.
CPC ...
C09D 11/328 (2013.01); C07D 471/04 (2013.01); C09B 31/30 (2013.01);
Abstract
A coloring matter which exhibits excellent (ozone) gas resistance, high print density, low color rendering properties, low color saturation, and high-quality black hue when is recorded on a paper only for inkjet exclusive use, i.e., an azo compound represented by formula (1), a tautomer of the azo compound, or a salt of the azo compound or the tautomer; and an ink composition containing the coloring matter, particularly a black ink composition for inkjet recording applications.