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Stacked element and vibration drive device

  • US 6,114,798 A
  • Filed: 03/25/1997
  • Issued: 09/05/2000
  • Est. Priority Date: 03/25/1996
  • Status: Expired due to Term
First Claim
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1. A stack element comprising:

  • a plurality of layers of an electromechanical energy transducing material; and

    layers of an electrode material stacked alternately with said layers of the energy transducing material,wherein said electrode material contains silver in a metal component and said silver is less than 50% by weight and contains 50 or more % by weight of palladium, andwherein said stack element is subjected to a polarization process with said plurality of layers of the electrode material, with each of said plurality of layers of the electrode material being divided into a plurality of areas, and said plurality of areas polarized in different directions, with said stack element vibrating based on a combination of plural bending vibrations.

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