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:
Nov. 18, 2025
Filed:
Mar. 22, 2022
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Shunsuke Uchizono, Shiojiri, JP;
Hiroaki Kumeta, Matsumoto, JP;
Soichi Yamazaki, Shiojiri, JP;
Manabu Taniguchi, Shiojiri, JP;
Assignee:
SEIKO EPSON CORPORATION, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/00 (2014.01); B41J 2/01 (2006.01); C08K 3/36 (2006.01); C08K 5/3415 (2006.01); C09D 11/033 (2014.01); C09D 11/037 (2014.01);
U.S. Cl.
CPC ...
C09D 11/037 (2013.01); B41J 2/01 (2013.01); C08K 3/36 (2013.01); C08K 5/3415 (2013.01); C09D 11/033 (2013.01); C08K 2201/003 (2013.01);
Abstract
An ink jet ink composition includes: a colorant; silica particles; 1-(2-hydroxyethyl)-2-pyrrolidone; and water, and the silica particles have in a TEM image thereof, a Di (diameter of the maximum inscribed circle)/Dc (diameter of the minimum circumscribed circle) of 0.7 or more.