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. 20, 2024
Filed:
Jul. 08, 2022
Seiko Epson Corporation, Tokyo, JP;
Masanori Mikoshiba, Shimosuwa, JP;
Motoki Takabe, Shiojiri, JP;
Yasuhiro Itayama, Kai, JP;
Jingling Wang, Shiojiri, JP;
SEIKO EPSON CORPORATION, , JP;
Abstract
A liquid ejecting head in which a first electrode layer, a piezoelectric layer, and a second electrode layer of a piezoelectric element are laminated, a pressure chamber, which is partitioned by a partition wall, has an elongated shape, in a structure including the diaphragm and the piezoelectric element including an active portion and a non-active portion lateral direction, a first position is a position on an inner side of the active portion when viewed in the thickness direction, a second position is a position on an inner side of the non-active portion and closest to a boundary between the pressure chamber and the partition wall, and EI/EI≤40, wherein EIis a bending rigidity of the active portion at the first position and EIis a bending rigidity of the non-active portion at the second position.