Piezoelectric element, liquid ejecting head, and liquid ejecting apparatus
US11691416B2 · kind B2 · utility
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31Claims
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Key dates
| Filing date | May 20, 2021 |
| Grant date | Jul 4, 2023 |
| Priority date | — |
| Expiry date | Sep 17, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/877
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An electric current based on electric charge produced on the piezoelectric body changes by going through a first path, a second path, a third path, and a fourth path in this order. On the first path, the electric current becomes larger as the voltage becomes higher. On the second path, the electric current becomes smaller as the voltage becomes higher. On the third path, the electric current becomes larger as the voltage becomes higher. On the fourth path, the electric current becomes smaller as the voltage becomes higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.