Laminated-type piezoelectric element

Details Laminated-type piezoelectric element Laminated-type piezoelectric element

2006-04-18

2008-10-21

Budd, Mark (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S364000

Reexamination Certificate

active

07439655

ABSTRACT:
A laminated-type piezoelectric element1is provided, which comprises a first external electrode layer33, which is located at a side area of the laminated-type piezoelectric element1, is electrically continuous to internal electrode layers21, and comprises plural expansible and contractible opening portions33ain a stacking direction of the laminated-type piezoelectric element1. As the first external electrode layer33is connected to the laminated-type piezoelectric element1with an electrically conductive adhesive member32and the electrically conductive adhesive member32is narrower than the first external electrode layer33, the electrically conductive adhesive member32penetrates into the opening portions33aof the first external electrode layer33to form connections in a shape of an anchor. Therefore, the first external electrode layer33is firmly connected to the laminated-type piezoelectric element1.

REFERENCES:
patent: 6507140 (2003-01-01), Heinz et al.
patent: 6573639 (2003-06-01), Heinz et al.
patent: 6700306 (2004-03-01), Nakamura et al.
patent: 7061162 (2006-06-01), Sato et al.
patent: 2001/0033125 (2001-10-01), Takao et al.
patent: 8-242025 (1996-09-01), None
patent: 2002-9356 (2002-01-01), None
Chinese Office Action dated Apr. 25, 2008 issued in counterpart Chinese Application No. 200610073658.0 with English translation.

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