Piezoelectric transducer including a plurality of...

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices

Reexamination Certificate

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C600S459000, C600S437000, C367S155000, C367S157000

Reexamination Certificate

active

10883733

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.

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patent: 2004/0032188 (2004-02-01), Bhardwaj
patent: 0480045 (1992-04-01), None
patent: 03-270599 (1991-12-01), None

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