Stacked electro-mechanical energy conversion element and...

Details Stacked electro-mechanical energy conversion element and... Stacked electro-mechanical energy conversion element and...

2005-08-23

2005-08-23

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S366000

Reexamination Certificate

active

06933657

ABSTRACT:
A stacked electro-mechanical energy conversion element includes a plurality of layers having a circular shape each of which is formed of a material having an electro-mechanical energy conversion function and has a through-hole in the center thereof, a plurality of electrode portions formed at least on one surface of the layers and separated from each other by a plurality of first non-electrode portions, a plurality of wiring conductors which penetrate the plurality of layers and electrically connect electrode portions of the different layers, and a plurality of second non-electrode portions formed in the periphery of the wiring conductors so as to prevent the wiring conductors from being rendered conductive to the electrode portions, wherein the wiring conductors are formed at least on or in the vicinity of an edge of an outer diameter of each layer, and the electrode portions are formed over the edge of the outer diameter except for portions at which the second non-electrode portions are formed.

REFERENCES:
patent: 5770916 (1998-06-01), Ezaki et al.
patent: 5814919 (1998-09-01), Okumura
patent: 5936327 (1999-08-01), Takahashi et al.
patent: 6046526 (2000-04-01), Maruyama
patent: 6065196 (2000-05-01), Inoi et al.
patent: 6114798 (2000-09-01), Maruyama et al.
patent: 6191520 (2001-02-01), Maruyama et al.
patent: 6291932 (2001-09-01), Maruyama et al.

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