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:
Nov. 18, 2025
Filed:
Jun. 21, 2022
Taiyo Yuden Co., Ltd., Tokyo, JP;
Sho Iwasaki, Tokyo, JP;
Jyunichi Hamasaki, Tokyo, JP;
TAIYO YUDEN CO., LTD., Tokyo, JP;
Abstract
A filter includes a support substrate, a piezoelectric layer, one or more series resonators connected in series between input and output terminals, each having first electrode fingers having a first average pitch, one or more parallel resonators having one end connected to a path and another end connected to a ground, each having second electrode fingers having a second average pitch more than a maximum first average pitch, another resonator having one end connected to the path, and having third electrode fingers having a third average pitch less than or equal to an intermediate value between the maximum first average pitch and a minimum second average pitch, and an inductor having one end connected to the another resonator and another end connected to the ground, and having an inductance more than a maximum inductance of another inductor connected between the parallel resonators and the ground.