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:
Jan. 21, 2025
Filed:
May. 18, 2021
Applicant:
Alps Alpine Co., Ltd., Tokyo, JP;
Inventors:
Heishiro Fudo, Miyagi-ken, JP;
Eiji Shinohara, Miyagi-ken, JP;
Akihito Yamamoto, Miyagi-ken, JP;
Shinya Ichise, Miyagi-ken, JP;
Yuki Ono, Miyagi-ken, JP;
Hisashi Komatsu, Miyagi-ken, JP;
Hiroyuki Tobari, Miyagi-ken, JP;
Assignee:
Alps Alpine Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10N 30/30 (2023.01); H10N 30/87 (2023.01);
U.S. Cl.
CPC ...
H10N 30/302 (2023.02); H10N 30/871 (2023.02);
Abstract
A composite piezoelectric element includes a first electrode layer, a piezoelectric substance layer disposed on the first electrode layer, and a second electrode layer disposed on the piezoelectric substance layer, and, in plan view, a measuring unit including the first electrode layer, the piezoelectric substance layer, and the second electrode layer and a buffer portion in which the piezoelectric substance layer is not provided.