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. 20, 2008
Filed:
Jun. 23, 2004
Applicants:
Shinichi Sato, Kanagawa, JP;
Takao Yamamoto, Kanagawa, JP;
Kumiko Mafune, Kanagawa, JP;
Sadayuki Sugama, Ibaraki, JP;
Tsuyoshi Kanke, Kanagawa, JP;
Yoshihide Aikawa, Kanagawa, JP;
Inventors:
Shinichi Sato, Kanagawa, JP;
Takao Yamamoto, Kanagawa, JP;
Kumiko Mafune, Kanagawa, JP;
Sadayuki Sugama, Ibaraki, JP;
Tsuyoshi Kanke, Kanagawa, JP;
Yoshihide Aikawa, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D 11/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A water-based ink that comprises a water-soluble anionic colorant, an aluminum ion and an acid ion, wherein the content of the acid ion is more than that of the aluminum ion, and the content of the water-soluble anionic colorant is 20 to 1,000 times as much as that of the acid ion by molar ratio.