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.

Date of Patent:
Dec. 26, 2023

Filed:

Jun. 02, 2022
Applicant:

Murata Manufacturing Co., Ltd., Nagaokakyo, JP;

Inventors:

Shinsuke Ikeuchi, Nagaokakyo, JP;

Seiji Umezawa, Nagaokakyo, JP;

Masayuki Suzuki, Nagaokakyo, JP;

Fumiya Kurokawa, Nagaokakyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 17/02 (2006.01); H10N 30/853 (2023.01);
U.S. Cl.
CPC ...
H04R 17/02 (2013.01); H04R 2400/01 (2013.01); H10N 30/8542 (2023.02);
Abstract

A transducer includes a base, beams, and a coupler. The beams each include a piezoelectric layer, a first electrode layer, and a second electrode layer. The coupler is fitted in slits between adjacent beams to define a connection between the beams. The coupler extends from an upper portion of the base into each of the slits without a break. A Young's modulus of the material of the coupler is lower than a Young's modulus of the material of the piezoelectric layer. A maximum thickness of the coupler in the upper portion of the base in the direction of the central axis of the base is greater than a thickness of each of the beams.


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