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. 30, 2025

Filed:

Mar. 07, 2023
Applicant:

Taiyo Yuden Co., Ltd., Tokyo, JP;

Inventors:

Kazushige Hatakeyama, Tokyo, JP;

Jyunichi Hamasaki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/72 (2006.01); H03H 9/05 (2006.01); H03H 9/70 (2006.01);
U.S. Cl.
CPC ...
H03H 9/725 (2013.01); H03H 9/0566 (2013.01); H03H 9/706 (2013.01);
Abstract

A multiplexer includes a transmit filter including first acoustic wave resonators connected to a first path between a common terminal and a transmit terminal, one or some first acoustic wave resonators of the first acoustic wave resonators being provided on a first substrate, and a remaining first acoustic wave resonator being provided on a second substrate, and a receive filter including second acoustic wave resonators connected to a second path between the common terminal and a receive terminal, one or some second acoustic wave resonators of the second acoustic wave resonators being provided on the first substrate and a remaining second acoustic wave resonator being provided on the second substrate, and a resonator closest to the receive terminal in a plan view among the one or some first and second acoustic wave resonators being a second acoustic wave resonator of the one or some second acoustic wave resonators.


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