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:
Jun. 17, 2025
Filed:
Jul. 13, 2022
Seiko Epson Corporation, Tokyo, JP;
Masaki Mori, Shiojiri, JP;
Yu Shiozawa, Shiojiri, JP;
Motoki Takabe, Shiojiri, JP;
Hitoshi Takaai, Azumino, JP;
Eiju Hirai, Azumino, JP;
Michiya Kubokawa, Fujimi-machi, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid discharge head includes a pressure chamber substrate that has a plurality of pressure chambers, a piezoelectric element that is laminated at the pressure chamber substrate, and has an individual electrode individually provided for each of the plurality of pressure chambers, a common electrode commonly provided for the plurality of pressure chambers, and a piezoelectric body provided between the individual electrode and the common electrode in a lamination direction of the piezoelectric element and provided to apply pressure to a liquid in the pressure chamber, a drive wiring that is electrically coupled to the individual electrode and the common electrode, and provided to apply a voltage for driving the piezoelectric body to the piezoelectric body, and a heating resistor that is formed of the same material as any of the individual electrode, the common electrode, and the drive wiring, and provided to heat the liquid in the pressure chamber.