Piezoelectric transducer including a plurality of...

Details Piezoelectric transducer including a plurality of... Piezoelectric transducer including a plurality of...

2007-10-02

2007-10-02

Martin, J. San (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C600S437000, C600S459000, C367S155000, C367S157000

Reexamination Certificate

active

11403828

ABSTRACT:
A piezoelectric transducer for an ultrasonic scan is provided. The transducer includes a plurality of piezoelectric members arrayed. The plurality of piezoelectric members have different compositions parts in a slice direction so that an ultrasonic beam is focused in the slice direction.

REFERENCES:
patent: 4460841 (1984-07-01), Smith et al.
patent: 5350964 (1994-09-01), Hara et al.
patent: 5465725 (1995-11-01), Seyed-Bolorforosh
patent: 5548564 (1996-08-01), Smith
patent: 2004/0032188 (2004-02-01), Bhardwaj
patent: 03-270599 (1991-12-01), None

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