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:
Apr. 23, 2019
Filed:
Oct. 04, 2018
Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;
Kentaro Kawasaki, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
An elastic wave device includes a piezoelectric substrate, first to third IDT electrodes provided on the piezoelectric substrate, a dielectric film provided on the piezoelectric substrate and covering the first to third IDT electrodes, the thickness of the dielectric film in a first region in which the dielectric film covers the first IDT electrodes is different from the thickness of the dielectric film in a second region in which the dielectric film covers the second IDT electrodes and the thickness of the dielectric film in a third region in which the dielectric film covers the third IDT electrodes. The density equivalent thickness of each of the first IDT electrodes and the second IDT electrodes are equal to each other, and the density equivalent thickness of each of the third IDT electrodes is different from the density equivalent thickness of each of the first IDT electrodes and the second IDT electrodes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile