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:
Apr. 28, 2009
Filed:
Apr. 12, 2004
Shuichi Kataoka, Nagano-ken, JP;
Bunji Ishimoto, Nagano-ken, JP;
Akira Mizutani, Nagano-ken, JP;
Naoki Okamoto, Hyogo-ken, JP;
Yoshiaki Miyazaki, Hyogo-ken, JP;
Izumi Yasuda, Hyogo-ken, JP;
Tomoyuki Shiraga, Hyogo-ken, JP;
Shuichi Kataoka, Nagano-ken, JP;
Bunji Ishimoto, Nagano-ken, JP;
Akira Mizutani, Nagano-ken, JP;
Naoki Okamoto, Hyogo-ken, JP;
Yoshiaki Miyazaki, Hyogo-ken, JP;
Izumi Yasuda, Hyogo-ken, JP;
Tomoyuki Shiraga, Hyogo-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Mikuni Shikiso Kabushiki Kaisha, Hyogo, JP;
Abstract
It is an object of the present invention to provide a pigment dispersion, an ink composition, and an ink set, enabling excellent glossiness, bronzing prevention, and ink composition storage stability to be realized. The present invention provides a pigment dispersion characterized by comprising at least a pigment, an aqueous medium, a copolymer resin between a hydrophobic monomer and a hydrophilic monomer, and a urethane resin, and also an ink composition characterized by containing at least the pigment dispersion and an aqueous medium, and an ink set characterized by comprising at least the ink composition.