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:
Dec. 30, 2008
Filed:
Feb. 28, 2007
Michio Miura, Kawasaki, JP;
Satoru Matsuda, Kawasaki, JP;
Takashi Matsuda, Kawasaki, JP;
Masanori Ueda, Kawasaki, JP;
Seiichi Mitobe, Yokohama, JP;
Michio Miura, Kawasaki, JP;
Satoru Matsuda, Kawasaki, JP;
Takashi Matsuda, Kawasaki, JP;
Masanori Ueda, Kawasaki, JP;
Seiichi Mitobe, Yokohama, JP;
Fujitsu Media Devices Limited, Yokohama, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An elastic boundary wave device includes a LiNbOsubstrate, an electrode exciting an elastic wave and provided on the substrate, and a silicon oxide film provided on the substrate to cover the electrode, and parameters of the elastic boundary wave device have any one of ranges, where 'θ' is a rotation Y cut angle of the substrate, 'a' is a ratio of copper density with respect to a density of a material used as the electrode, “λ” is a wavelength of the elastic wave excited by the electrode, “h” is a film thickness of the electrode, “H” is a thickness of the silicon oxide film.