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:
Aug. 26, 2025
Filed:
Mar. 31, 2020
Tohoku University, Sendai, JP;
Michio Kadota, Miyagi, JP;
Shuji Tanaka, Miyagi, JP;
Abstract
A high-order mode surface acoustic wave device includes a piezoelectric substrate () formed from a LiTaOor LiNbOcrystal and an interdigital transducer electrode () embedded in a surface of the piezoelectric substrate () to use a surface acoustic wave in a high-order mode. Further, the high-order mode surface acoustic wave device may include a film () or substrate stacked on the piezoelectric substrate (), and may include a support substrate () and/or a multi-layer film () provided in contact with a surface opposite to the surface of the piezoelectric substrate () on which the interdigital transducer electrode () is provided. The high-order mode surface acoustic wave device may achieve good characteristics and maintain a sufficient mechanical strength even in a high frequency band of 3.8 GHz or greater.