Liquid ejecting head and liquid ejecting apparatus
US12064967B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 2022 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Sep 16, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/11
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
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 EI1/EI2≤40, wherein EI1 is a bending rigidity of the active portion at the first position and EI2 is a bending rigidity of the non-active portion at the second position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.