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.

Date of Patent:
Sep. 15, 2026

Filed:

Oct. 18, 2023
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventors:

Hidehiko Komatsu, Chino, JP;

Yasuhiro Oki, Matsumoto, JP;

Shintaro Hama, Matsumoto, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09D 11/328 (2014.01); C09B 35/023 (2006.01); C09B 35/037 (2006.01); C09B 67/20 (2006.01); C09B 67/22 (2006.01); C09D 11/033 (2014.01); C09D 11/037 (2014.01);
U.S. Cl.
CPC ...
C09D 11/328 (2013.01); C09B 35/023 (2013.01); C09B 35/037 (2013.01); C09B 67/0058 (2013.01); C09B 67/0069 (2013.01); C09D 11/033 (2013.01); C09D 11/037 (2013.01);
Abstract

Provided is an ink composition for ink jet printing containing a coloring material, a water-soluble organic solvent, and water. The coloring material contains a compound A represented by Formula (1) and a compound B represented by Formula (2) and a mass ratio (a/b) of a content a of the compound A to a content b of the compound B is 1.0 or more and 99 or less.


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