Liquid ejecting head, liquid ejecting apparatus and piezoelectric element
US8777380B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2012 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Oct 31, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14258
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid ejecting head for discharging liquid from nozzle openings is provided. The liquid ejecting head includes a piezoelectric element comprising a piezoelectric film inserted between electrodes with buffer layer on one or two surfaces of the piezoelectric film, wherein the piezoelectric film is made from barium titanate-based composition having a perovskite structure containing barium, titanium as well as copper equal to or less than 3 mol % of titanium amount, lithium more than or equal to 2 mol % and less than or equal to 5 mol % of titanium amount, and boron more than or equal to 2 mol % and less than or equal to 5 mol % of titanium amount and the buffer layer is formed from a complex oxides with perovskite structure containing bismuth, iron, manganese, barium and titanium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.