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:
May. 19, 2026

Filed:

Mar. 13, 2024
Applicant:

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

Inventors:

Seima Kondo, Nagaokakyo, JP;

Takayuki Okude, Nagaokakyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/17 (2006.01); H03H 9/135 (2006.01); H03H 9/56 (2006.01);
U.S. Cl.
CPC ...
H03H 9/17 (2013.01); H03H 9/135 (2013.01); H03H 9/568 (2013.01);
Abstract

A resonator includes a resonant electrode on a substrate having piezoelectricity. The resonant electrode includes a first comb-shaped electrode including a first busbar electrode and first electrode fingers, and a second comb-shaped electrode including a second busbar electrode and second electrode fingers. The substrate includes first and second overlap regions. The first region includes of pairs of first and second electrode fingers arranged alternately at a first pitch. The second region includes pairs of first and second electrode fingers arranged alternately at a second pitch different from the first pitch. An electrostatic capacitance of the first comb-shaped electrode and the second comb-shaped electrode in the first region is about 0.9 times or more and about 1.1 times or less an electrostatic capacitance of the first comb-shaped electrode and the second comb-shaped electrode in the second region.


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