Ink-jet head
US6347862B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1998 |
| Grant date | Feb 19, 2002 |
| Priority date | — |
| Expiry date | Dec 14, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/03
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
There is provided an ink-jet head having ink outlets formed at a high density for use in an ink-jet recorder. The ink-jet head comprises ink outlets, compression chambers communicating with the ink outlets, and piezoelectric vibration sections, each being provided on a part of each of the compression chambers and including a piezoelectric film containing Pb, Ti and Zr, and electrodes provided on both sides of the piezoelectric film. The piezoelectric film comprises a first layer and a second layer which each have a perovskite structure and are formed in contact with each other, wherein the first layer is formed as a layer containing no Zr or as a layer containing a smaller amount of Zr than that contained in the second layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.