Ultrasonic sensor having a piezoelectric element

Details Ultrasonic sensor having a piezoelectric element Ultrasonic sensor having a piezoelectric element

2011-03-01

2011-03-01

Rosenau, Derek J (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S348000, C310S365000

Reexamination Certificate

active

07898151

ABSTRACT:
An ultrasonic sensor having a piezoelectric element including first and second electrodes is disclosed. The ultrasonic sensor includes an aluminum case having a bottom part electrically contacting the second electrode of the piezoelectric element, a first conductive part electrically connected to the first electrode of the piezoelectric element, and a second conductive part having a cladding material including a material exhibiting a satisfactory welding property with respect to the aluminum case. The second conductive part and the aluminum case are welded together.

REFERENCES:
patent: 5987992 (1999-11-01), Watanabe et al.
patent: 6520019 (2003-02-01), Schon et al.
patent: 2008/0118826 (2008-05-01), Shimamura et al.
patent: 09-284896 (1997-10-01), None
patent: 11-266498 (1999-09-01), None
patent: 2000-032594 (2000-01-01), None
patent: 2002-209294 (2002-07-01), None

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