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. 21, 2012
Filed:
May. 21, 2010
Applicants:
Tsutomu Takai, Kanazawa, JP;
Norihiro Hayakawa, Moriyama, JP;
Taro Nishino, Yasu, JP;
Inventors:
Assignee:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/25 (2006.01);
U.S. Cl.
CPC ...
Abstract
An acoustic wave device includes an acoustic wave element including an IDT electrode provided on a substrate, and a protective film arranged to cover the acoustic wave element so as to stabilize characteristics. The protective film is a silicon nitride film composed of silicon and nitrogen as main components and when a composition ratio of the silicon to the nitrogen is represented by 1:X, X is about 1.15 or less.
Takai, Tsutomu. (2012). Acoustic wave device (U.S. Patent No. 8120230). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8120230
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile