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:
Jun. 03, 2025
Filed:
Aug. 11, 2022
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Koichi Terao, Suwa, JP;
Soichi Yamazaki, Shiojiri, JP;
Nikako Tsukiji, Matsumoto, JP;
Harunobu Komatsu, Matsumoto, JP;
Koji Horiba, Atsugi, JP;
Assignee:
SEIKO EPSON CORPORATION, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/328 (2014.01); B41J 2/01 (2006.01); C09D 167/00 (2006.01);
U.S. Cl.
CPC ...
C09D 11/328 (2013.01); B41J 2/01 (2013.01); C09D 167/00 (2013.01);
Abstract
An ink jet composition of the present disclosure includes: water; a polyester resin having sulfo groups; a colorant; and a high molecular weight dispersant having anionic groups, the colorant is contained in particles formed from a material containing the polyester resin, and a rate X1 [percent on molar basis] of the sulfo groups to all constituent monomers of the polyester resin is lower than a rate X2 [percent on molar basis] of the anionic groups to all constituent monomers of the high molecular weight dispersant.