Liquid ejection head
US7988068B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 26, 2006 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | May 20, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/21
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The liquid ejection head comprises: a pressure chamber which is connected to a nozzle; a diaphragm which constitutes one face of the pressure chamber; and a piezoelectric element which deforms the diaphragm for ejecting liquid inside the pressure chamber through the nozzle, wherein the liquid is ejected by driving the piezoelectric element in a temperature region in which a tendency of increase or decrease in viscosity of the liquid with respect to temperature of the liquid and a tendency of increase or decrease in a piezoelectric d constant of the piezoelectric element with respect to temperature of the piezoelectric element have a prescribed relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.