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. 28, 2006
Filed:
Mar. 05, 2003
Yoshinori Katoh, Saitama, JP;
Isao Yamaguchi, Chiba, JP;
Yoshinori Katoh, Saitama, JP;
Isao Yamaguchi, Chiba, JP;
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Abstract
A metal phthalocyanine compound that is useful as a black colorant suitable for use in an ink-jet recording ink, a water-based ink composition containing the metal phthalocyanine compound, and a product colored with the metal phthalocyanine compound. In particular, a metal phthalocyanine compound having, as substituents, both an acylamino group and a carboxyethylamino group on the phthalocyanine structure, or the salt thereof is used as a black colorant. Recorded images formed by the use of this colorant are excellent in light fastness and water fastness and exhibit absorption in infrared and visible regions, so that highly effective utilization can be found in printing of, for example, bar codes which are available in near-infrared ray reading.