Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2007-09-25
2007-09-25
Martin, J. San (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S363000, C310S364000, C310S366000, C310S324000
Reexamination Certificate
active
10855932
ABSTRACT:
A cell driving type piezoelectric actuator comprising: a plurality of cell driving bodies each comprising a wall portion, a cell formed by the wall portion, a piezoelectric body formed on at least one of wall portions and at least one pair of electrodes formed on the piezoelectric body; said piezoelectric operation portion being capable of changing a volume of the cell on which said piezoelectric operation portion is formed by its displacement, wherein the piezoelectric actuator comprises at least one pair of support bodies, the plurality of cell driving bodies are formed completely independent of one another and are connected to one another through at least one pair of support bodies, and the cell driving bodies and the support bodies are integrally formed by firing a green body of said piezoelectric actuator. A method for manufacturing the same is also disclosed.
REFERENCES:
patent: 6223405 (2001-05-01), Oikawa et al.
patent: 2002/0001021 (2002-01-01), Tachibana
patent: 06-143564 (1994-05-01), None
patent: 07-081055 (1995-03-01), None
patent: 3217006 (2001-08-01), None
patent: 3465959 (2003-08-01), None
Iwata Koichi
Kimura Koji
Takeuchi Yukihisa
Yamamoto Kazuhiro
Burr & Brown
Martin J. San
NGK Insulators Ltd.
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