logo

For the Inventor, By the Inventor

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.:

US 12577420 B1

PDFFull Text
Date of Patent:
Mar. 17, 2026

Filed:

Jul. 28, 2022

Pigment composition, coloring agent, and inkjet ink

Applicant:

Dic Corporation, Tokyo, JP;

Inventors:

Shogo Yamada, Kamisu, JP;

Yukiko Higuchi, Kamisu, JP;

Akira Kimura, Kamisu, JP;

Xia Yang, Qingdao, CN;

Wei Zhao, Qingdao, CN;

Assignee:

DIC CORPORATION, Tokyo, JP;

Attorney:

WHDA, LLP

Primary Examiner:

Manish S Shah

Int. Cl.
CPC ...
C09D 11/322 (2014.01); B41J 2/01 (2006.01); B41J 2/21 (2006.01); C08K 5/3437 (2006.01); C09B 48/00 (2006.01); C09B 67/20 (2006.01); C09C 3/06 (2006.01); C09D 11/38 (2014.01); C09D 17/00 (2006.01);
U.S. Cl.
CPC ...
C09D 11/322 (2013.01); B41J 2/01 (2013.01); B41J 2/2107 (2013.01); C08K 5/3437 (2013.01); C09B 48/00 (2013.01); C09B 67/006 (2013.01); C09C 3/06 (2013.01); C09D 11/38 (2013.01); C09D 17/00 (2013.01);
Abstract

An object of the present invention is to provide a pigment composition that is suitable as an IJ ink and has high dispersion stability and excellent storage stability, a coloring agent containing the pigment composition, and, in particular, an IJ ink. The pigment composition of the present invention contains a quinacridone pigment and a compound represented by formula (I) below. In formula (I), n represents an integer of 1 to 8. At least C.I. Pigment Red 122 is preferably contained as the quinacridone pigment.

Find Patent Forward Citations

Yamada, Shogo. (2026). Pigment composition, coloring agent, and inkjet ink (U.S. Patent No. 12577420). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12577420

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…