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. 28, 2023
Filed:
Feb. 26, 2019
Applicant:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Inventors:
Fumihisa Ito, Takasaki, JP;
Yukihiro Matsui, Takasaki, JP;
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/047 (2006.01); H01L 41/083 (2006.01);
U.S. Cl.
CPC ...
H01L 41/083 (2013.01); H01L 41/0471 (2013.01); H01L 41/0472 (2013.01);
Abstract
A laminated piezoelectric elementincludes: a laminated bodyin rectangle shape formed by alternately laminating a plurality of piezoelectric layersand one or more internal electrode(s); a connection electrodeconnected to one end portionof the internal electrode(s); and an electric field relaxation regionorformed discontinuously with regard to the internal electrode(s)in at least one of two corner portionsandof the other end portionopposite to the one end portionof the internal electrode(s)