Droplet discharge head, image forming apparatus, polarization processing method of electromechanical transducer, and method of manufacturing droplet discharge head
US9186894B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2015 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Mar 17, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49124
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A droplet discharge head includes a substrate, an electromechanical transducer, a first terminal electrode, a second terminal electrode, and a holding substrate. The holding substrate covers the electromechanical transducer. The holding substrate has a first opening to expose at least a part of the first terminal electrode and a second opening to expose at least a part of the second terminal electrode. The first and second openings are arranged in an area in which an amount of charges supplied by a discharge electrode becomes a threshold amount or more when, by corona or glow discharge generated by the discharge electrode arranged to face a surface of the holding substrate having the first and second openings, charges are supplied to the first and second terminal electrodes through the first and second openings to generate an electric field between first and second drive electrodes to perform polarization processing on the electromechanical transducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.