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:
Aug. 30, 2022
Filed:
Jul. 12, 2018
Taiyo Yuden Co., Ltd., Tokyo, JP;
Sumiaki Kishimoto, Takasaki, JP;
Hiroshi Hamada, Takasaki, JP;
Hiroyuki Shimizu, Takasaki, JP;
Yukihiro Matsui, Takasaki, JP;
Tomohiro Harada, Takasaki, JP;
Yukihiro Konishi, Takasaki, JP;
TAIYO YUDEN CO., LTD., Tokyo, JP;
Abstract
A multilayer piezoelectric element includes a ceramic base body, a pair of external electrodes, multiple internal electrodes, and surface electrodes. The pair of external electrodes cover a pair of end faces and extend from the pair of end faces along a pair of principal faces and a pair of side faces. The multiple internal electrodes are stacked inside the ceramic base body along the thickness direction, and are connected alternately to one or the other of the pair of external electrodes along the thickness direction. The surface electrodes extend from the pair of external electrodes along the pair of principal faces, and are each divided in the longitudinal direction at a position near, of the pair of external electrodes, the external electrode to which the internal electrode adjacent to the principal face is connected.