The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 27, 2024
Filed:
Aug. 27, 2021
Tdk Corporation, Tokyo, JP;
Tatsuya Taki, Tokyo, JP;
TDK CORPORATION, Tokyo, JP;
Abstract
An ultrasonic device according to one aspect 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 a main face of the piezoelectric element and is made of a foaming material. The vibration-proof material is disposed around the sound absorbing material. The sound absorbing material includes a first opposing face opposed to the main face. The first opposing face has an uneven shape in which a plurality of protruding portions and a plurality of depression portions are alternately continued, and is rougher than the main face.