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. 28, 2013
Filed:
Apr. 04, 2006
Keiichiro Tsubaki, Tokyo, JP;
Ryuji Higashi, Kawasaki, JP;
Masayuki Ikegami, Atsugi, JP;
Keiko Yamagishi, Ebina, JP;
Ryo Natori, Yokohama, JP;
Takaho Shibata, Yokohama, JP;
Keiichiro Tsubaki, Tokyo, JP;
Ryuji Higashi, Kawasaki, JP;
Masayuki Ikegami, Atsugi, JP;
Keiko Yamagishi, Ebina, JP;
Ryo Natori, Yokohama, JP;
Takaho Shibata, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The invention provides an ink composition, which is improved in dispersibility and fastness properties and is excellent in dispersion stability and re-solubility owing to dispersed particles in which a coloring material is included by a crosslinked hydrophobic block segment in a dispersing polymer. The ink composition contains an amphiphilic block polymer compound, in which a coloring material is included, and a medium, wherein the amphiphilic block polymer compound, in which the coloring material is included, forms a dispersed particle having the hydrophobic block segment as an internal core part, and the hydrophobic block segment is crosslinked.