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 12787650 B1

PDFFull Text
Date of Patent:
Nov. 03, 2026

Filed:

Mar. 28, 2022

Piezoelectric film, method of producing piezoelectric film, piezoelectric element, and piezoelectric device

Applicant:

Nitto Denko Corporation, Ibaraki, JP;

Inventors:

Gaku Tsuburaoka, Ibaraki, JP;

Daisuke Nakamura, Ibaraki, JP;

Taketo Ishikawa, Ibaraki, JP;

Hironobu Machinaga, Ibaraki, JP;

Assignee:

NITTO DENKO CORPORATION, Ibaraki, JP;

Attorney:

Hauptman Ham, LLP

Primary Examiner:

Julio C Gonzalez

Int. Cl.
CPC ...
H10N 30/00 (2023.01); C04B 35/453 (2006.01); C30B 23/08 (2006.01); C30B 25/06 (2006.01); C30B 29/16 (2006.01); H10N 30/076 (2023.01); H10N 30/853 (2023.01);
U.S. Cl.
CPC ...
H10N 30/853 (2023.02); C04B 35/453 (2013.01); C30B 23/08 (2013.01); C30B 25/06 (2013.01); C30B 29/16 (2013.01); H10N 30/076 (2023.02); C04B 2235/3206 (2013.01); C04B 2235/3284 (2013.01); C04B 2235/46 (2013.01); C04B 2235/762 (2013.01); C04B 2235/95 (2013.01);
Abstract

A piezoelectric film contains a piezoelectric material having a wurtzite-type crystal structure as a main component, and an additive element containing Kr, wherein the piezoelectric material contains a component selected from the group consisting of Zn, Al, Ga, Cd, and Si, as an electropositive element, and wherein a ratio of a content of Kr element to a content of contained elements in the piezoelectric material is in a range from 0.01 atm % to 0.05 atm %.

Find Patent Forward Citations

Quick Actions:

Tsuburaoka, Gaku. (2026). Piezoelectric film, method of producing piezoelectric film, piezoelectric element, and piezoelectric device (U.S. Patent No. 12787650). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12787650

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

Loading…