Ultrasonic motor and manufacturing method of the same

Details Ultrasonic motor and manufacturing method of the same Ultrasonic motor and manufacturing method of the same

2010-06-28

2011-10-25

Dougherty, Thomas M (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S317000, C310S323160, C310S366000

Reexamination Certificate

active

08044554

ABSTRACT:
An ultrasonic motor and a manufacturing method thereof are provided. The ultrasonic motor includes an active layered section including a piezoelectric material; an inactive section disposed below the active layered section, which has a contact portion profile as a lowest layer; a first lower layer positioned one layer below an uppermost layer of the active layered section; a second lower layer formed with separated electrodes in an upper surface thereof and positioned two layers below the uppermost layer; and a repeated structure in the active layered section having a same structure as a combination structure comprising the first lower layer and the second lower layer, the repeated structure being downwardly layered from the combination structure.

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