Ferroelectric element process for producing the same and ink jet head
US6343855B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 1998 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Feb 23, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/8554
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A ferroelectric element, having a ferroelectric material containing at least two metals, the ferroelectric element having been produced by a process including the steps of: providing alkoxides of the respective metals as starting compounds; hydrolyzing the metal alkoxides in the presence of a catalytic amount of a protonic acid to increase the molecular weight; and adding a film-forming polymer material to the sol-like solution prepared in the step of increasing the molecular weight to prepare a sol-like ferroelectric precursor solution. The ferroelectric element can be formed in a thick film form without creating any cracks. It can be advantageously used as a piezoelectric element in a piezoelectric ink jet head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.