Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2007-08-10
2009-10-06
Dougherty, Thomas M (Department: 2837)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
Reexamination Certificate
active
07598660
ABSTRACT:
A monolithic piezoelectric element includes a stack, and the stack includes a crack-forming conductive layer arranged to intentionally form a small crack in the stack. The small crack alleviates stress, thereby preventing the occurrence of a large crack that may extend to the piezoelectrically active region.
REFERENCES:
patent: 4523121 (1985-06-01), Takahashi et al.
patent: 5073740 (1991-12-01), Jomura et al.
patent: 5196757 (1993-03-01), Omatsu
patent: 6765337 (2004-07-01), Heinz et al.
patent: 7282835 (2007-10-01), Kawakami
patent: 7288875 (2007-10-01), Kadotani et al.
patent: 7498727 (2009-03-01), Nakamura et al.
patent: 2001/0033125 (2001-10-01), Takao et al.
patent: 2006/0238073 (2006-10-01), Ragossnig et al.
patent: 2008/0024043 (2008-01-01), Oakley et al.
patent: 1 764 844 (2007-03-01), None
patent: 1 944 813 (2008-07-01), None
patent: 61-124183 (1986-06-01), None
patent: 04-299588 (1992-10-01), None
patent: 06-005794 (1994-01-01), None
patent: 06-204581 (1994-07-01), None
patent: 08-274381 (1996-10-01), None
patent: 11-121820 (1999-04-01), None
patent: 2000-133851 (2000-05-01), None
patent: 2001-024247 (2001-01-01), None
patent: 2001-102646 (2001-04-01), None
patent: 2005-108989 (2005-04-01), None
patent: WO-2006/042791 (2006-04-01), None
Official Communication for PCT Application No. PCT/JP2005/023651; mailed on Feb. 28, 2006.
Hayashi Koichi
Hongo Hiromitsu
Kobayashi Shozo
Dougherty Thomas M
Keating & Bennett LLP
Murata Manufacturing Co. Ltd.
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