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:
Jul. 05, 2011
Filed:
Aug. 29, 2006
Junshi Ota, Nagaokakyo, JP;
Junshi Ota, Nagaokakyo, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
A case member of an ultrasonic sensor includes an outer case member having a substantially cylindrical shape with a bottom surface and an inner case member. Cutout portions having a predetermined size are arranged so as to face each other in a lower portion of a sidewall of the inner case member. The inner case member is made of a metal material having a density that is greater than that of the outer case member. Consequently, an elliptical vibrating-surface amplitude profile can be formed in a vibrating surface of the ultrasonic sensor, and an ultrasonic sensor having stable anisotropy in directional properties can be provided. Further, the ultrasonic sensor has a small amount of displacement of side vibration.