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:
Jul. 11, 2006
Filed:
Oct. 31, 2000
Akihiro Bungo, Saitama, JP;
Ryohei Kimura, Saitama, JP;
Koji Hasegawa, Hokkaido, JP;
Masanori Koshiba, Hokkaido, JP;
Akihiro Bungo, Saitama, JP;
Ryohei Kimura, Saitama, JP;
Koji Hasegawa, Hokkaido, JP;
Masanori Koshiba, Hokkaido, JP;
Mitsubishi Materials Corporation, Tokyo, JP;
Abstract
The surface acoustic wave device has the surface acoustic wave transducer, which consists of the positive electrode finger, the negative electrode finger, and the floating electrode, which are formed on the surface of the langasite single crystal substrate, where the substrate orientation and the surface acoustic wave propagation direction are chosen so that it may have the natural unidirectional property. When the wavelength of the surface acoustic wave is λ, each above-mentioned electrode is formed along the surface acoustic wave propagation direction, so that the width of above-mentioned positive electrode finger and the negative electrode finger may be about λ/8, the distance g between each center of the positive electrode finger and the floating electrode may be 13/40λ≦g≦14/40λ, and the width W of the floating electrode may be 11/40λ≦W≦13/40λ.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile