Inkjet head
US10836166B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2017 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Jun 20, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
This inkjet head comprises: a nozzle plate including a plurality of nozzles; a vibration plate including a pressure chamber to store ink to be ejected from the nozzle; a spacer plate containing a piezoelectric layer to apply pressure to the pressure chamber; a vibration board provided between the pressure chamber and the piezoelectric layer to transmit deformation of the piezoelectric layer to the pressure chamber; and an intermediate substrate between the pressure chamber plate and the nozzle plate, the intermediate substrate including a communication flow path that communicates with the nozzle and the pressure chamber. The nozzle plate includes: an individual circulation flow path provided for each of the plurality of nozzles to discharge ink; and a common circulation flow path into which a plurality of individual circulation flow paths merge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.