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. 16, 2021
Filed:
Oct. 10, 2019
Applicant:
Taiyo Yuden Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
TAIYO YUDEN CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/145 (2006.01); H03H 9/25 (2006.01); H03H 9/64 (2006.01); H03H 9/02 (2006.01); H03H 9/72 (2006.01);
U.S. Cl.
CPC ...
H03H 9/14541 (2013.01); H03H 9/02897 (2013.01); H03H 9/02992 (2013.01); H03H 9/25 (2013.01); H03H 9/6483 (2013.01); H03H 9/725 (2013.01);
Abstract
An acoustic wave device includes: a piezoelectric substrate; and a pair of comb-shaped electrodes located on the piezoelectric substrate, each of the comb-shaped electrodes including a plurality of electrode fingers, side surfaces facing each other of the electrode fingers having a plurality of protrusion portions and a plurality of recessed portions arranged in an extension direction of the electrode fingers, ends of the protrusion portions and the recessed portions narrowing.