Nikon Corporation

Tomohiko Yokoo

Takatoshi Ashizawa

Ryoichi Suganuma

Daisuke Saya

An ultrasonic motor having an electromechanical element and an elastic body joined by an adhesive layer, wherein the adhesive layer is chosen for having either a specific thermal expansion coefficient, a specific shrinkage volume, a high Vickers hardness, a high longitudinal elastic modulus, or a high Vickers hardness and a high longitudinal elastic modulus. By proper selection of an adhesive for use in the adhesive layer, the motor drive efficiency, starting torque and power consumption can be improved by reducing the deformation of the elastic body and maintaining a larger contact area with a contact member or movable element. Proper selection of an adhesive also allows the motor's performance level to be maintained when the temperature changes.

Growing community of inventors

Inagi, Japan

Tomohiko Yokoo