Ink-jet head device with a multi-stacked PZT actuator
US6416172B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2001 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Jan 10, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14217
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink-jet head device using a stack of piezoelectric bodies, including a nozzle plate having a nozzle, a manifold portion having a restrictor plate that has a restrictor, piezoelectric bodies stacked in multiple layers and interposed between the nozzle plate and the manifold portion to form a chamber for containing ink, each of the piezoelectric bodies having a cavity at the center, common electrodes and driving electrodes alternately interposed one by one between adjacent piezoelectric bodies, a common lead line and a driving line electrically connected to the common electrodes and driving electrodes, respectively, for supplying a voltage to piezoelectric bodies to cause deformation thereof, and a medium interposed at least between the restrictor plate and a piezoelectric body adjacent to the restrictor plate, and between the nozzle plate and a piezoelectric body adjacent to the nozzle plate, the medium deformed corresponding to deformation of the piezoelectric bodies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.