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:
May. 02, 2023
Filed:
Sep. 24, 2019
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Nao Kozaka, Matsumoto, JP;
Yuki Wakushima, Matsumoto, JP;
Yoshitaka Miyajima, Matsumoto, JP;
Takeshi Yano, Shiojiri, JP;
Chitae Hashizume, Matsumoto, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/328 (2014.01); C09D 11/38 (2014.01); D06P 1/18 (2006.01); D06P 1/645 (2006.01); B41J 2/21 (2006.01); B41J 2/175 (2006.01); B41M 5/00 (2006.01); B41J 2/01 (2006.01); C09D 11/322 (2014.01);
U.S. Cl.
CPC ...
B41J 2/2107 (2013.01); B41J 2/01 (2013.01); B41J 2/17503 (2013.01); B41M 5/0023 (2013.01); C09D 11/322 (2013.01); C09D 11/328 (2013.01); C09D 11/38 (2013.01); D06P 1/18 (2013.01); D06P 1/645 (2013.01);
Abstract
An ink jet ink composition contains a dye having an azo group, water, and a hindered amine compound having a radical. The dissolved nitrogen concentration of the ink composition is 10 ppm or less.