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:
May. 19, 2015
Filed:
Jul. 19, 2012
Koji Tsuchiya, Tokyo, JP;
Masahiko Aoba, Tokyo, JP;
Kenjiro Matsumoto, Tokyo, JP;
Takeshi Tamaki, Tokyo, JP;
Koji Tsuchiya, Tokyo, JP;
Masahiko Aoba, Tokyo, JP;
Kenjiro Matsumoto, Tokyo, JP;
Takeshi Tamaki, Tokyo, JP;
DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD., Tokyo, JP;
Abstract
An object is to overcome the drawbacks of conventional blue phthalocyanine pigments upon the formation of images, and to develop a blue pigment that can satisfactorily exhibit a greenish blue color high in chroma and excellent in colorfulness, brightness, dispersibility, hue, tinting power and the like and that is applicable to various image recording methods. The object can be achieved by a greenish blue pigment, which exhibits a greenish blue hue of high chroma and contains a pigment represented by the following formula (I): wherein the number, m, of substituent phthalimidomethyl group(s) is in a range of 1.0≦m≦5.0, and the number, n, of a substituent sulfonic group R1 is in a range of 0.05≦n≦1.0.