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:
Sep. 26, 2023
Filed:
Sep. 27, 2021
Seiko Epson Corporation, Tokyo, JP;
Harunobu Koike, Matsumoto, JP;
Tatsuo Sawasaki, Fujimi-machi, JP;
Masao Nakayama, Shiojiri, JP;
Chihiro Nishi, Chino, JP;
Toshihiro Shimizu, Fujimi-machi, JP;
Yasushi Yamazaki, Azumino, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A liquid ejecting head includes a piezoelectric element and a vibrating plate configured to vibrate in response to actuation of the piezoelectric element, the vibrating plate including a first layer that contains SiOand a second layer that contains ZrOand that is stacked on the first layer. The second layer contains a first impurity element different from Zr, and the concentration of the first impurity element at an interface in contact with the first layer in the second layer is higher than the concentration of the first impurity element in an internal region that is included in the second layer and that is contiguous from the interface to the surface of the second layer.