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:
Aug. 02, 2016
Filed:
Jun. 12, 2013
Murata Manufacturing Co., Ltd., Nagaokakyo-Shi, Kyoto-Fu, JP;
Takamasa Kuboki, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyoto-Fu, JP;
Abstract
An acceleration sensor where the accuracy of acceleration detection is unlikely to fall even when the ambient temperature changes. A piezoelectric substrate includes a polarized central portion and first and second end portions. A first electrode is formed on a first main surface of the piezoelectric substrate so as to extend from the first end portion to the second end portion. A second electrode is formed inside the piezoelectric substrate so as to extend across the second end portion and the central portion. The second electrode opposes the first electrode in the central portion in a thickness direction. A supporting member clamps the second end portion. The piezoelectric substrate is formed such that a distance between the first electrode and the second electrode in the second end portion is greater than a distance between the first electrode and the second electrode in the central portion.