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:
Jun. 02, 2026
Filed:
Mar. 15, 2023
Fujifilm Corporation, Tokyo, JP;
Seigo Nakamura, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
There are provided a piezoelectric laminate, which include, on a substrate in the following order, a lower electrode layer and a piezoelectric film, in which the piezoelectric film contains a perovskite-type oxide, the piezoelectric film includes a first region in which the perovskite-type oxide contains, as a main component, a first perovskite crystal in which a first angle formed by a (100) plane orientation or a (001) plane orientation and a normal direction of a surface of the substrate is 5°˜30°, and includes a second region provided between the first region and the lower electrode layer, in which the perovskite-type oxide contains, as a main component, a second perovskite crystal in which a second angle formed by the (100) plane orientation or the (001) plane orientation and the normal direction is less than 5°, and a thickness of the second region is 30 nm or more.