logo

For the Inventor, By the Inventor

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.:

US 12610744 B1

PDFFull Text
Date of Patent:
Apr. 21, 2026

Filed:

Oct. 25, 2022

Piezoelectric device having an insulating portion overlapping electrode opening

Applicants:

Denso Corporation, Kariya-city, JP;

Toyota Jidosha Kabushiki Kaisha, Toyota, JP;

Mirise Technologies Corporation, Nisshin, JP;

Nisshinbo Micro Devices Inc., Tokyo, JP;

Inventors:

Tetsuya Enomoto, Nisshin-city, JP;

Takahide Usui, Fujimino-city, JP;

Naokatsu Ikegami, Fujimino-city, JP;

Shuji Katakami, Fujimino-city, JP;

Assignees:

DENSO CORPORATION, Kariya-city, JP;

TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;

MIRISE Technologies Corporation, Nisshin, JP;

Nisshinbo Micro Devices Inc., Tokyo, JP;

Attorney:

Posz Law Group, PLC

Primary Examiner:

Emily P Pham

Assistant Examiner:

Monica undefined Mata

Int. Cl.
CPC ...
H10N 30/00 (2023.01); B06B 1/06 (2006.01); H10N 30/50 (2023.01); H10N 30/85 (2023.01); H10N 30/87 (2023.01);
U.S. Cl.
CPC ...
H10N 30/704 (2024.05); B06B 1/06 (2013.01); H10N 30/50 (2023.02); H10N 30/85 (2023.02); H10N 30/87 (2023.02);
Abstract

A piezoelectric device includes a support member, and a vibrating portion provided on a support surface of the support member. The vibrating portion includes, in addition to a first electrode, a piezoelectric film and a second electrode arranged in a stacking direction, an insulating film configured to increase an electric resistance value between the first and second electrodes. The first electrode is provided on the support surface of the support member, and includes an opening penetrating the first electrode in the stacking direction. The piezoelectric film is provided on the first electrode to extend across the opening. The second electrode is provided on the piezoelectric film. The insulating film is provided at a position between the first electrode and the second electrode, and at least a part of the insulating film overlaps with the opening in the stacking direction.

Find Patent Forward Citations

Enomoto, Tetsuya. (2026). Piezoelectric device having an insulating portion overlapping electrode opening (U.S. Patent No. 12610744). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12610744

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…