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.

Date of Patent:
Oct. 12, 2010

Filed:

Jun. 06, 2008
Applicants:

Hiroyuki Nakamura, Osaka, JP;

Tetsuya Tsurunari, Osaka, JP;

Ken Matsunami, Osaka, JP;

Hidekazu Nakanishi, Osaka, JP;

Inventors:

Hiroyuki Nakamura, Osaka, JP;

Tetsuya Tsurunari, Osaka, JP;

Ken Matsunami, Osaka, JP;

Hidekazu Nakanishi, Osaka, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/00 (2006.01); H03H 9/64 (2006.01);
U.S. Cl.
CPC ...
Abstract

A surface acoustic wave filter includes a piezoelectric substrate including lithium niobate, a series resonator including a first interdigital transducer electrode provided on the piezoelectric substrate, and a parallel resonator including a second interdigital transducer electrode provided on the piezoelectric substrate and being electrically connected to the series resonator. An apodized weighting factor of the first interdigital transducer electrode is smaller than an apodized weighting factor of the second interdigital transducer electrode. This surface acoustic wave filter has a small loss.


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Nakamura, Hiroyuki. (2010). Surface acoustic wave filter, boundary acoustic wave filter, and antenna duplexer using same (U.S. Patent No. 7812688). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7812688

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

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