Inkjet recording head and recording apparatus using the same
US6550897B2 · kind B2 · utility
8Cited by
7References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2001 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Dec 18, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14491
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inkjet recording head allowing a high driving efficiency and preventing a variation in the driving efficiency is disclosed. An piezoelectric actuator is provided for each ink nozzle and has a driving section disposed in an area of an ink pressure chamber, an electrode pad section, and at least one bridge section connecting the driving section and the electrode pad section. The pressure chamber has a plane shape having an aspect ratio approximately equal to 1, and the bridge section has a width of a connection area to the driving section set smaller than a width of a connection side of the driving section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.