Acoustic matching layer
US11468876B2 · kind B2 · utility
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1References
9Claims
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Key dates
| Filing date | Jun 21, 2018 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | May 10, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K13/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An acoustic matching layer includes a base material having a plate-shaped member made of a metal, a ceramic, or glass. Depressed portions are partially provided in a vibration surface of the base material toward a joining surface of the base material that is in a propagation direction of a sound wave.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.