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:
Jan. 25, 2011
Filed:
Dec. 03, 2009
Michio Kadota, Kyoto, JP;
Takeshi Nakao, Omihachiman, JP;
Michio Kadota, Kyoto, JP;
Takeshi Nakao, Omihachiman, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
A surface acoustic wave device includes a LiTaOsubstrate, and an IDT having a high reflection coefficient, which has a relatively high electromechanical coupling coefficient k, and which can obtain superior resonance characteristics and/or filter characteristics. In a surface acoustic wave device in which a plurality of grooves is provided in an upper surface of a LiTaOsubstrate and an IDT having a plurality of electrode fingers made of a metal filled in the plurality of grooves, the following equation is satisfied: (ρ×C)>1.95×10, where ρ represents the density of the metal defining the IDT, and Crepresents the stiffness thereof.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile