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:
Apr. 14, 2015

Filed:

Apr. 12, 2012
Applicants:

Soichi Yamazaki, Shiojiri, JP;

Rie Miyazaki, Matsumoto, JP;

Miharu Kanaya, Azumino, JP;

Hiroshi Kato, Okaya, JP;

Ayako Nishiki, Matsumoto, JP;

Hideki Okada, Shiojiri, JP;

Inventors:

Soichi Yamazaki, Shiojiri, JP;

Rie Miyazaki, Matsumoto, JP;

Miharu Kanaya, Azumino, JP;

Hiroshi Kato, Okaya, JP;

Ayako Nishiki, Matsumoto, JP;

Hideki Okada, Shiojiri, JP;

Assignee:

Seiko Epson Corporation, Suwa-shi, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/01 (2006.01); B41J 2/175 (2006.01); B41J 2/21 (2006.01); C09D 11/322 (2014.01); C09D 11/38 (2014.01);
U.S. Cl.
CPC ...
B41J 2/17509 (2013.01); B41J 2/2107 (2013.01); C09D 11/322 (2013.01); C09D 11/38 (2013.01);
Abstract

An ink jet recording aqueous pigment ink contains a self-dispersing pigment, a quaternary amino acid, a non-polymeric, nonionic material having a melting point of 40° C. or more, and at least one of trialkylamine and trialkanolamine. The content of the non-polymeric, nonionic material is 3% to 15% by mass relative to the total mass of the ink jet recording aqueous pigment ink.


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