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:
Jul. 07, 2026
Filed:
Apr. 20, 2023
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Inventors:
Tadayuki Okawa, Nagaokakyo, JP;
Toshio Nishimura, Nagaokakyo, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Nagaokakyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/13 (2006.01); H03B 5/32 (2006.01); H03H 9/10 (2006.01); H03H 9/19 (2006.01);
U.S. Cl.
CPC ...
H03H 9/131 (2013.01); H03B 5/32 (2013.01); H03H 9/1021 (2013.01); H03H 9/19 (2013.01);
Abstract
A piezoelectric vibration element that includes a piezoelectric piece having a first principal surface and a second principal surface; a via electrode penetrating the piezoelectric piece from the first principal surface to the second principal surface thereof; a conductive etch stop film covering the via electrode on the second principal surface; and a wiring electrode covering at least part of an outer edge of the conductive etch stop film on the second principal surface.