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:
Oct. 06, 2026
Filed:
Oct. 18, 2021
Applicant:
Kureha Corporation, Tokyo, JP;
Inventors:
Assignee:
Kureha Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10N 30/88 (2023.01); C08J 7/04 (2020.01); C08J 7/044 (2020.01); H10N 30/01 (2023.01); H10N 30/30 (2023.01); H10N 30/857 (2023.01); G06F 3/041 (2006.01);
U.S. Cl.
CPC ...
H10N 30/883 (2023.02); C08J 7/0427 (2020.01); C08J 7/044 (2020.01); H10N 30/01 (2023.02); H10N 30/302 (2023.02); H10N 30/857 (2023.02); C08J 2327/16 (2013.01); G06F 3/041 (2013.01); G06F 2203/04105 (2013.01);
Abstract
Provided is a piezoelectric film capable of sufficiently exhibiting both piezoelectric properties and transparency. A piezoelectric film including, by stacking: a transparent piezoelectric base film made of a fluororesin; and a transparent coating layer having a thickness of 0.20 to 2.5 μm, wherein the transparent coating layer forms an interface with the transparent piezoelectric base film over an entire region overlapping the transparent piezoelectric base film.