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. 23, 2010
Filed:
May. 07, 2008
Satomi Yanagimachi, Yokosuka, JP;
Kumiko Mafune, Kawasaki, JP;
Mikio Sanada, Kawasaki, JP;
Kenji Moribe, Fujisawa, JP;
Tomonari Watanabe, Kawasaki, JP;
Daiji Okamura, Yokohama, JP;
Hideki Yamakami, Yokohama, JP;
Satoshi Kudo, Kawasaki, JP;
Fumiharu Nakamura, Yokohama, JP;
Satomi Yanagimachi, Yokosuka, JP;
Kumiko Mafune, Kawasaki, JP;
Mikio Sanada, Kawasaki, JP;
Kenji Moribe, Fujisawa, JP;
Tomonari Watanabe, Kawasaki, JP;
Daiji Okamura, Yokohama, JP;
Hideki Yamakami, Yokohama, JP;
Satoshi Kudo, Kawasaki, JP;
Fumiharu Nakamura, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In an ink set having a plurality of inks, the ink set has at least a pigment ink and a dye ink. The pigment ink contains at least water, a surfactant, a self-dispersion pigment, and a poor medium for self-dispersion pigment and/or a salt; a dynamic surface tension of the pigment ink at a lifetime of 50 milliseconds is higher than 47 mN/m. The dye ink contains at least water, a surfactant and a dye. An ink set is provided which can obtain images having a high image density and a superior bleeding resistance without regard to the types of recording mediums.