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. 05, 2011
Filed:
Feb. 05, 2008
Pigment ink, ink jet recording method, ink cartridge, recording unit and ink jet recording apparatus
Takashi Saito, Kawasaki, JP;
Katsuhiro Shirota, Kawasaki, JP;
Shinichi Hakamada, Kawasaki, JP;
Masashi Tsujimura, Kawasaki, JP;
Fumihiko Mukae, Tokyo, JP;
Katsuhiko Suzuki, Tokyo, JP;
Takashi Saito, Kawasaki, JP;
Katsuhiro Shirota, Kawasaki, JP;
Shinichi Hakamada, Kawasaki, JP;
Masashi Tsujimura, Kawasaki, JP;
Fumihiko Mukae, Tokyo, JP;
Katsuhiko Suzuki, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A pigment ink is provided which has good ink reliability and storage stability and can achieve superior scratch resistance of images at such a level that coloring materials are hardly scraped off even when images are scratched with finger nails under application of such strong pressure as to scratch a recording medium at its non-recorded areas. The pigment ink contains a pigment, a modified siloxane compound having a specific structure, and a polymer whose acid value and hydrogen bond parameter (δh) are specified.