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:
Aug. 26, 2025
Filed:
Mar. 29, 2023
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Toshimichi Yamada, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01); G06F 3/12 (2006.01);
U.S. Cl.
CPC ...
B41J 2/04508 (2013.01); B41J 2/04513 (2013.01); B41J 2/04581 (2013.01); G06F 3/1232 (2013.01);
Abstract
A liquid discharge system including a piezoelectric element that is displaced in accordance with a drive signal and discharges liquid; a drive signal output circuit that outputs the drive signal; a measurement circuit that measures a first capacitance of the piezoelectric element; and a determination circuit that determines a deterioration state of the piezoelectric element based on the first capacitance.