Method of manufacturing ink jet head
US6223405A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1997 |
| Grant date | May 1, 2001 |
| Priority date | — |
| Expiry date | Sep 9, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49401
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing an ink jet head includes the following steps, wherein the ink jet head is provided with a plurality of pressure chambers arranged continuously, ink feed means for feeding ink into these pressure chambers, and ink ejecting means for ejecting ink from each pressure chamber via a nozzle, so as to feed and eject ink by a change in volume of each pressure chamber. First, a first metallic film is formed on both surfaces of at least one wall composing the pressure chamber perpendicular to an arranging direction of the plurality of pressure chambers, wherein the at least one wall is one wall of a piezoelectric element deformed when a voltage is impressed. Then, the first metallic film formed on one of the both surfaces of at lest one wall is removed to form an exposed surface of the wall of the piezoelectric element. Thereafter, a second metallic film is formed on the exposed surface, whereby metallic films, thicknesses of which are different from each other, are formed on the both surfaces of at least one wall of the piezoelectric element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.