Piezoelectric speaker
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United States of America Patent
Stats
-
Oct 15, 2024
Grant Date -
Sep 10, 2020
app pub date -
Nov 20, 2018
filing date -
Nov 21, 2017
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A piezoelectric speaker (10) includes a piezoelectric film (35), a first joining layer (51), and an interposed layer (40). The piezoelectric film (35) includes a first electrode (61), a second electrode (62), and a piezoelectric body (30) sandwiched by the first electrode (61) and the second electrode (62). The first joining layer (51) is a layer having pressure-sensitive adhesiveness or adhesiveness. The interposed layer (40) is disposed between the piezoelectric film (35) and the first joining layer (51). Both principal surfaces of the piezoelectric film (35) vibrate up and down as a whole.
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International Classification(s)
- 2018 Application Filing Year
- H02N Class
- 373 Applications Filed
- 256 Patents Issued To-Date
- 68.64 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H02N Class
- 0 % this patent is cited more than
- 1 Age
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