Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Reexamination Certificate
2005-08-23
2005-08-23
Budd, Mark (Department: 2834)
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
C310S328000
Reexamination Certificate
active
06933663
ABSTRACT:
A piezoelectric/electrostrictive actuator includes a plurality of piezoelectric/electrostrictive elements arranged in comb teeth-like alignment on a base plate. The actuator is driven by means of dislocation of the piezoelectric/electrostrictive elements. The cell driving type actuator is characterized in that each of the cells is formed independently from adjacent cells by positioning cover plates between two adjacent piezoelectric/electrostrictive elements. Thus, there is provided a piezoelectric/electrostrictive actuator wherein a heating process at a high temperature can be applied and mass production at low cost is possible. The actuator includes cells with slit portions having a width of 60 μm or less and a high aspect ratio and can be activated with high electric field strength, and great displacement can be obtained with small electric field strength.
REFERENCES:
patent: 5471231 (1995-11-01), Hiraishi et al.
patent: 6106106 (2000-08-01), Nakazawa et al.
patent: 6206496 (2001-03-01), Ushioda
patent: 6223405 (2001-05-01), Oikawa et al.
patent: 6361151 (2002-03-01), Shigemura
patent: 07-081055 (1995-03-01), None
patent: 07-329290 (1995-12-01), None
Kitamura Kazumasa
Takahashi Nobuo
Takeuchi Yukihisa
Tsuji Hiroyuki
Budd Mark
Burr & Brown
NGK Insulators Ltd.
LandOfFree
Cell driving type actuator and method for manufacturing the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cell driving type actuator and method for manufacturing the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cell driving type actuator and method for manufacturing the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3507321