Inkjet head, inkjet recording apparatus, liquid droplet ejecting apparatus, and image forming apparatus
US8454133B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2012 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Mar 16, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14491
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkjet head is disclosed. In the inkjet head a vibrating plate is formed on a liquid chamber substrate on which multiple dedicated liquid chambers are aligned; a first insulating film and a second insulating film are formed between a dedicated electrode wiring and a lower electrode in an area in which the dedicated electrode wiring and the lower electrode overlap; a third insulating film and a fourth insulating film are stacked in an area which includes a forming area of the dedicated electrode wiring; in at least a portion of a forming area of the dedicated liquid chamber, there is provided a non-film forming area; and, in an area including a piezoelectric element forming section, either the first insulating film and the fourth insulating film are formed in the non-film forming area, or the fourth insulating film is formed in the non-film forming area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.