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:
Jan. 13, 2026
Filed:
Mar. 18, 2022
Applicant:
Kao Corporation, Tokyo, JP;
Inventors:
Tomohiko Nagano, Wakayama, JP;
Shimpei Kobayashi, Wakayama, JP;
Hiroto Soma, Wakayama, JP;
Shu Nagashima, Wakayama, JP;
Yuki Ozaki, Wakayama, JP;
Assignee:
KAO CORPORATION, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/326 (2014.01); B41J 2/01 (2006.01); C08G 63/183 (2006.01); C09D 11/104 (2014.01); C09D 11/322 (2014.01); C09D 17/00 (2006.01); C09D 167/02 (2006.01);
U.S. Cl.
CPC ...
C09D 11/326 (2013.01); B41J 2/01 (2013.01); C08G 63/183 (2013.01); C09D 11/104 (2013.01); C09D 11/322 (2013.01); C09D 17/001 (2013.01); C09D 167/02 (2013.01);
Abstract
A pigment water dispersion, including pigment-containing polyester resin particles. The polyester resin contains a constitutional unit derived from an alcohol component and a constitutional unit derived from a carboxylic acid component, the alcohol component contains 3-methyl-1,5-pentanediol, and an average particle size of the pigment-containing resin particles is not less than 60 nm and not more than 350 nm.