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. 10, 2006
Filed:
Oct. 04, 2000
Akihiro Hachigo, Itami, JP;
Katsuhiro Itakura, Itami, JP;
Satoshi Fujii, Itami, JP;
Hideaki Nakahata, Itami, JP;
Shinichi Shikata, Itami, JP;
Akihiro Hachigo, Itami, JP;
Katsuhiro Itakura, Itami, JP;
Satoshi Fujii, Itami, JP;
Hideaki Nakahata, Itami, JP;
Shinichi Shikata, Itami, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
The present invention provides a surface acoustic wave device comprising a diamond, having operating frequencies in the range of several hundreds of MHz to several tens of GHz, and being capable of operating at high frequencies. The surface acoustic wave device of the present invention comprises a diamond layer or a substrate layer and a diamond layer, a ZnO piezoelectric layer, interdigital transducers and a short-circuit electrode layer, being characterized in that (2π·H/λ) is in the range of 3.0 to 10.0 where the thickness of the ZnO layer is H and the wavelength of the surface acoustic wave is λ.