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:
Jun. 28, 2005
Filed:
Jun. 13, 2003
Applicants:
Daisuke Tamazaki, Nagaokakyo, JP;
Takeshi Nakao, Nagaokakyo, JP;
Toshimaro Yoneda, Ishikawa-ken, JP;
Inventors:
Daisuke Tamazaki, Nagaokakyo, JP;
Takeshi Nakao, Nagaokakyo, JP;
Toshimaro Yoneda, Ishikawa-ken, JP;
Assignee:
Murata Manufacturing Co., LTD, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H009/00 ;
U.S. Cl.
CPC ...
Abstract
A surface acoustic wave device has first and second surface acoustic wave filter elements which are arranged on a surface acoustic wave substrate so as to define a filter device having a two-stage configuration. A free surface portion is provided by forming a perforation in an inter-stage connecting portion connecting the first and second surface acoustic wave filter elements.