Ink jet head and ink jet printer
US6350019B1 · kind B1 · utility
13Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2000 |
| Grant date | Feb 26, 2002 |
| Priority date | — |
| Expiry date | Mar 20, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2202/11
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An ink jet head includes a pressure chamber, a vibration plate, and a piezoelectric element which is provided on the vibration plate and causes a volume displacement of the pressure chamber. The piezoelectric element has a thickness of 20 &mgr;m or less, and the pressure chamber and the piezoelectric element satisfy a relation V0/(L22b)>550×10−6, where V0 [m3] denotes a volume displacement of the pressure chamber when the piezoelectric element is driven, L2 [m] denotes a width of the piezoelectric element, and b [m] denotes a depth of the pressure chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.