Piezoelectric device
US12343760B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2022 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | May 2, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/88
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A piezoelectric device includes an outer base, a protruding base, and only one cantilevered portion. A protruding base includes a protrusion and a tip portion. The protrusion protrudes from an internal circumferential surface of the outer base toward a center of a ring shape. The tip portion is connected to the protrusion and located at the center. The cantilevered portion is connected to the tip portion, and extends while being spaced apart from the protrusion. The cantilevered portion includes a fixed end portion and a free periphery. The fixed end portion is connected to the tip portion. The free periphery is located along the internal circumferential surface. The protrusion is located between a first end and a second end of the free periphery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.