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:
May. 16, 2023

Filed:

Sep. 17, 2019
Applicant:

Ricoh Company, Ltd., Tokyo, JP;

Inventors:

Hiroki Hagiwara, Kanagawa, JP;

Tomohiro Nakagawa, Kanagawa, JP;

Yuki Kaji, Saitama, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09D 11/00 (2014.01); C09D 11/38 (2014.01); C09D 11/322 (2014.01); C09D 11/326 (2014.01); C09D 11/40 (2014.01); C09D 1/00 (2006.01); C09D 4/00 (2006.01); C09D 5/00 (2006.01); C09K 3/00 (2006.01); B41J 2/21 (2006.01);
U.S. Cl.
CPC ...
C09D 11/38 (2013.01); C09D 11/322 (2013.01); C09D 11/326 (2013.01); C09D 11/40 (2013.01); B41J 2/21 (2013.01);
Abstract

An ink is provided. The ink comprises a colorant, water, an organic solvent comprising a glycol ether having a solubility parameter of from 9.0 to 12.0 (cal/cm), and a surfactant comprising a silicone-based surfactant (a) and a nonionic surfactant (b).


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