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. 20, 2007
Filed:
Aug. 12, 2003
Hajime Kando, Kyoto-fu, JP;
Daisuke Yamamoto, Takatsuki, JP;
Michio Kadota, Kyoto, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
A surface acoustic wave device includes a LiNbOsubstrate with a Euler angle in an area defined by a rectangle having four comers with coordinates () (0°, 7°, 101°), () (0°, 23°, 79°), () (0°, 23°, 79°), and () (0°, 7°, 79°), for example, and an electrode film made of Au, wherein surface acoustic waves including a longitudinal wave component as a main component are propagated thereon. The surface acoustic wave device uses longitudinal surface acoustic waves having a phase speed greater than with the 'slow transverse wave', and has a great electromechanical coupling coefficient and small propagation loss, and is suitable for handling high-frequency signals.