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. 01, 2005
Filed:
Sep. 12, 2002
Akio Kashiwazaki, Kanagawa, JP;
Katsuhiro Shirota, Kanagawa, JP;
Akihiro Mouri, Tokyo, JP;
Noribumi Koitabashi, Kanagawa, JP;
Hitoshi Tsuboi, Tokyo, JP;
Yasunori Fujimoto, Kanagawa, JP;
Akio Kashiwazaki, Kanagawa, JP;
Katsuhiro Shirota, Kanagawa, JP;
Akihiro Mouri, Tokyo, JP;
Noribumi Koitabashi, Kanagawa, JP;
Hitoshi Tsuboi, Tokyo, JP;
Yasunori Fujimoto, Kanagawa, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink which includes a first pigment, a second pigment, a polymer dispersant and an aqueous medium; wherein the first pigment is a self-dispersing pigment having on its surface at least one anionic group bonded to the surface directly or via an atomic group, the second pigment is dispersed in the aqueous medium by the polymer dispersant, and the polymer dispersant contains benzylmethacrylate as a monomer unit. Diffusion of this ink in the printing medium is suppressed in the cross-sectional direction but not horizontal direction. Thus, the ink can form an ink dot that has a proper dot size, uniform and high density in the dot, with little feathering or blur.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile