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:
Nov. 21, 2023
Filed:
Mar. 09, 2021
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Inventor:
Shou Nagatomo, Nagaokakyo, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/02 (2006.01); H03H 9/145 (2006.01); H03H 9/25 (2006.01);
U.S. Cl.
CPC ...
H03H 9/14541 (2013.01); H03H 9/02559 (2013.01); H03H 9/02574 (2013.01); H03H 9/25 (2013.01);
Abstract
An acoustic wave device uses a longitudinal acoustic wave, and includes a piezoelectric layer including first and second principal surfaces opposite to each other, an IDT electrode directly or indirectly on the first principal surface, and a high acoustic velocity member directly or indirectly on the second principal surface and including a 4H-type or 6H-type crystal polytype silicon carbide.