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:
Mar. 03, 2020
Filed:
Jul. 11, 2017
Applicant:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/64 (2006.01); H03H 9/70 (2006.01); H03H 9/72 (2006.01); H03H 9/54 (2006.01); H03H 9/56 (2006.01); H03H 9/25 (2006.01);
U.S. Cl.
CPC ...
H03H 9/6496 (2013.01); H03H 9/25 (2013.01); H03H 9/542 (2013.01); H03H 9/568 (2013.01); H03H 9/6483 (2013.01); H03H 9/706 (2013.01); H03H 9/725 (2013.01);
Abstract
A multiplexer includes: a first filter that includes a piezoelectric thin film resonator and is connected between a common terminal and a first terminal, the piezoelectric thin film resonator being located on a substrate; a second filter that includes an acoustic wave resonator and is connected between the common terminal and a second terminal, the acoustic wave resonator including an IDT located on a piezoelectric substrate; and a capacitor that includes a pair of electrodes facing each other in a planar direction and is coupled to the first filter, the pair of electrodes being located on the piezoelectric substrate.