Piezoactuator with low stray capacitance

Details Piezoactuator with low stray capacitance Piezoactuator with low stray capacitance

2006-01-18

2009-08-25

Dougherty, Thomas M (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

Reexamination Certificate

active

07579756

ABSTRACT:
A piezoelectric actuator includes a stack of piezoceramic layers and electrodes among the piezoceramic layers. At least one edge region of the stack does not include electrodes. A cover layer is at the at least one edge region. The cover layer has a dielectric constant that is less than a dielectric constant of a piezoceramic layer.

REFERENCES:
patent: 3835340 (1974-09-01), Schildkraut
patent: 5828160 (1998-10-01), Sugishita
patent: 6111343 (2000-08-01), Unami et al.
patent: 6495946 (2002-12-01), Heinz et al.
patent: 7358653 (2008-04-01), Nishimura
patent: 2001/0040420 (2001-11-01), Watanabe et al.
patent: 2002/0084872 (2002-07-01), Kawazoe
patent: 2002/0109435 (2002-08-01), Cotton, III
patent: 2006/0238073 (2006-10-01), Ragossnig et al.
patent: 2007/0046148 (2007-03-01), Sugg
patent: 42 01 937 (1992-07-01), None
patent: 199 28 176 (2001-01-01), None
patent: 101 63 005 (2002-10-01), None
patent: 103 07 825 (2004-09-01), None
patent: 103 21 694 (2004-12-01), None
patent: 10353171 (2005-06-01), None
patent: 63-288075 (1988-11-01), None
patent: 03-097310 (1991-04-01), None
patent: 07-154005 (1995-06-01), None
patent: 2002-305792 (2002-10-01), None
patent: WO03/026033 (2003-03-01), None
patent: WO2005/053046 (2005-06-01), None
patent: WO2005/069394 (2005-07-01), None
International Search Report for PCT/DE2006/000067.
Written Opinion for PCT/DE2006/000067.
English translation of Written Opinion for PCT/DE2006/000067.

Affiliated with

Also associated with

Rating

Piezoactuator with low stray capacitance does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Piezoactuator with low stray capacitance, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Piezoactuator with low stray capacitance will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4062975