Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1998-04-07
2000-08-22
Dougherty, Thomas M.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
31032315, H02N 200
Patent
active
061077259
ABSTRACT:
A vibration type driving device includes a vibration element by which vibration is excited, and a contact element brought into contact with the vibration element and relatively moved by the vibration. One of two opposing slide portions of the vibration and contact elements is made of an alumina ceramic containing an additive except alumina, and the other one of the two opposing slide portions is made of an iron-based material. An apparatus using this vibration type driving device is also disclosed.
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Canon Kabushiki Kaisha
Dougherty Thomas M.
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