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.:

US 7400220 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 15, 2008

Filed:

Feb. 25, 2005
Applicants:

Yasuyuki Saitou, Yokohama, JP;

Osamu Kawachi, Yokohama, JP;

Inventors:

Yasuyuki Saitou, Yokohama, JP;

Osamu Kawachi, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/00 (2006.01); H03H 9/25 (2006.01);
U.S. Cl.
CPC ...
Abstract

A surface acoustic wave device includes a surface acoustic wave resonator. The surface acoustic wave resonator includes comb-like electrodes and reflection electrodes provided on both sides of the comb-like electrodes, and each of the reflection electrodes has at least two different pitches. It is thus possible to suppress the ripple components.


Find Patent Forward Citations

Saitou, Yasuyuki. (2008). Surface acoustic wave device (U.S. Patent No. 7400220). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7400220

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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