Ink-jet printing head and ink-jet printing apparatus using same
US5984459A · kind A · utility
12Cited by
2References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1998 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | Sep 1, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/11
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink-jet printing head and an ink-jet printing apparatus using the same, the ink-jet head comprising a piezoelectric element, a vibrating plate constituting a part of a pressure generating chamber communicating with a nozzle aperture, a lower electrode, a piezoelectric layer, and an upper electrode, wherein said vibrating plate in an area opposite to the vicinity of at least one end in the longitudinal direction of a piezoelectric active part which is an area in which said piezoelectric layer substantially drives said vibrating plate is convex on the reverse side to said piezoelectric element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.