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. 07, 2026
Filed:
Nov. 30, 2022
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/32 (2014.01); B41J 2/01 (2006.01); B41J 2/21 (2006.01); C09D 11/104 (2014.01); C09D 11/322 (2014.01); C09D 11/326 (2014.01);
U.S. Cl.
CPC ...
C09D 11/32 (2013.01); B41J 2/01 (2013.01); B41J 2/2107 (2013.01); C09D 11/104 (2013.01); C09D 11/322 (2013.01); C09D 11/326 (2013.01);
Abstract
Provided is an aqueous ink for ink jet containing coloring material-particle and resin particle. The resin particle is formed from a crystalline polyester resin having carboxylic acid groups. A difference between a 50% cumulative particle diameter (D) in a volume-based particle size distribution of the coloring material-particle and a 50% cumulative particle diameter (D) in a volume-based particle size distribution of the resin particle (D−D) is 10 nm or more. In addition, an ink cartridge and an ink jet recording method using this aqueous ink are provided.