Back to results
US 12,109,590 B2Granted
Ultrasonic device
AssigneeTDK Corporation
InventorTatsuya Taki
Life of this patent
Estimating the term…
Abstract
An ultrasonic device includes a case, a piezoelectric element, a sound absorbing material, and a vibration-proof material. The case defines a housing space. The piezoelectric element is disposed in the housing space. The sound absorbing material is disposed on the piezoelectric element and is made of a foaming material. The vibration-proof material is disposed around the sound absorbing material and is in contact with an inner face of the case. Between the piezoelectric element and the sound absorbing material, a first space is formed.
Claims19
An ultrasonic device comprising:
- a case defining a housing space;
- a piezoelectric element disposed in the housing space;
- a sound absorbing material disposed on the piezoelectric element and made of a foaming material;
- a substrate disposed in the housing space in such a way as to be opposed to the piezoelectric element via the sound absorbing material and electrically connected to the piezoelectric element, and
- a vibration-proof material disposed around the sound absorbing material and being in contact with an inner face of the case, wherein
- a first space is formed between the piezoelectric element and the sound absorbing material, and
- a second space is formed between the substrate and the sound absorbing material.
4 more elements
Dependencies are inferred from the claim text.