Liquid ejecting head and liquid ejecting apparatus
US11794474B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2021 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Jan 6, 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 includes: an actuator including a piezoelectric element and a vibrating plate; and a pressure chamber substrate including a pressure chamber whose volume changes when the vibrating plate deforms, in which 0.35×FR1≤FR2<1.00×FR1, where one position in a longitudinal direction of the pressure chamber is a first position, another position closer than the first position to an end of the pressure chamber in the longitudinal direction of the pressure chamber is a second position, bending rigidity of the actuator in the thickness direction at the first position is FR1, and bending rigidity of the actuator in the thickness direction at the second position is FR2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.