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:
Jan. 16, 2024
Filed:
Feb. 14, 2022
Seiko Epson Corporation, Tokyo, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid ejecting head includes a piezoelectric device including a first electrode, a second electrode, and a piezoelectric layer, a vibration plate that is deformed when the piezoelectric device is driven, a pressure chamber plate including a pressure chamber whose volume is changed by deformation of the vibration plate, a wiring board, an individual lead electrode through which the wiring board and the first electrode are electrically coupled to each other, a common lead electrode through which the wiring board and the second electrode are electrically coupled to each other, and a resistance wire electrically coupled to the wiring board and used to determine temperature in the pressure chamber.