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:
Mar. 17, 2026

Filed:

Jun. 09, 2023
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventor:

Tomoki Maruyama, Matsumoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01); C09D 11/03 (2014.01); C09D 11/328 (2014.01); C09D 11/38 (2014.01);
U.S. Cl.
CPC ...
B41J 2/17566 (2013.01); C09D 11/03 (2013.01); C09D 11/328 (2013.01); C09D 11/38 (2013.01); B41J 2002/17579 (2013.01);
Abstract

An ink jet recording device of the present disclosure is an ink jet recording device including an ink amount detection device that includes a container internally having an accommodation space that accommodates an ink jet ink composition, a first electrode and at least one second electrode disposed to face each other via the accommodation space, and a capacitance detection unit detecting a capacitance between the first electrode and the second electrode using a mutual capacity method, in which the ink jet ink composition has an electrical conductivity of 10.0 mS/cm or less.


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