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:
Feb. 14, 2006
Filed:
Oct. 12, 2002
Applicants:
Osamu Shibata, Ishikawa-ken, JP;
Yoichi Sawada, Ishikawa-ken, JP;
Inventors:
Osamu Shibata, Ishikawa-ken, JP;
Yoichi Sawada, Ishikawa-ken, JP;
Assignee:
Murata Manufacturing Co., LTD, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/145 (2006.01); H03H 9/25 (2006.01);
U.S. Cl.
CPC ...
Abstract
A surface acoustic wave device includes at least four surface acoustic wave elements that are arranged to have an unbalanced-to-balanced conversion function. In a surface acoustic wave element on the balanced side, the phase between the input and output terminals is 180 degrees shifted so that the phase difference between the outputs on the balanced side becomes substantially 180 degrees.