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:
Jun. 02, 2026

Filed:

Sep. 06, 2024
Applicant:

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

Inventors:

Takuma Kuroyanagi, Nagaokakyo, JP;

Yoshihiro Yoshimura, Nagaokakyo, JP;

Kiyoshi Aikawa, Nagaokakyo, JP;

Takahiro Yamashita, Nagaokakyo, JP;

Yuusuke Suzuki, Nagaokakyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/64 (2006.01); H03H 9/13 (2006.01); H03H 9/145 (2006.01); H03H 9/22 (2006.01); H03H 9/25 (2006.01); H03H 9/56 (2006.01);
U.S. Cl.
CPC ...
H03H 9/6483 (2013.01); H03H 9/133 (2013.01); H03H 9/145 (2013.01); H03H 9/22 (2013.01); H03H 9/25 (2013.01); H03H 9/568 (2013.01);
Abstract

An acoustic wave device includes a first transmission filter; and a second transmission filter stacked on the first transmission filter so that a first functional surface of the first transmission filter and a second functional surface of the second transmission filter face each other at a predetermined distance. The first transmission filter includes a first input terminal and a first acoustic wave resonator. The second transmission filter includes a second input terminal and a second acoustic wave resonator. The first acoustic wave resonator includes a first functional electrode formed on the first functional surface. The second acoustic wave resonator includes a second functional electrode formed on the second functional surface. In a plan view along a thickness direction of the first and second transmission filters, a first formation region of the first functional electrode and a second formation region of the second functional electrode do not overlap each other.


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