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:
Sep. 01, 2026

Filed:

Dec. 12, 2024
Applicant:

Seiko Epson Corporation, Tokyo, JP;

Inventor:

Masahiko Yoshida, Shiojiri, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/175 (2006.01);
U.S. Cl.
CPC ...
B41J 2/17566 (2013.01); B41J 2/17513 (2013.01); B41J 2/17553 (2013.01); B41J 2002/17579 (2013.01);
Abstract

A liquid ejection apparatus includes a storage container configured to store a liquid having conductivity, a first electrode housed in a first liquid chamber, a second electrode housed in a second liquid chamber, a partition wall configured to partition the first liquid chamber and the second liquid chamber, a detection unit configured to output a detection signal corresponding to an electrical signal from one of the first electrode and the second electrode, and an identification unit configured to identify a remaining amount of the liquid, wherein a first opening is formed below the partition wall, a second opening is formed above the partition wall, and when the liquid stored in the storage container is present in the first opening and the second opening, the first electrode and the second electrode are in contact with the liquid stored in the storage container.


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