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:
Jun. 16, 2026
Filed:
May. 20, 2024
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Toshio Nishimura, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Nagaokakyo, JP;
Abstract
A crystal resonator is provided that includes a crystal substrate having first and second main surfaces; a first and second comb electrodes on the first main surface and that each include electrode fingers that are alternately arranged. The first comb electrode includes a first electrode finger and the second comb electrode includes a second electrode finger adjacent to the first electrode finger. Thickness shear vibration is excited at a portion overlapping with a gap between the first and second electrode fingers, depending on a potential difference between the first and second electrode fingers. A duty ratio (L+L(/(2×P) on a first main surface side is from 0.15 to 0.33 inclusive or from 0.62 to 0.82 inclusive where a width of the first electrode finger is denoted as L, a width of the second electrode finger is and a distance between the first and second electrode fingers is P
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