Patent ID: 8102097

Claim:
An electrostatic acting device comprising: a first electrode section ( 20 , 20 a ) including a first electrode ( 22 , 22 a , 22 b , 22 c ); a second electrode section ( 10 , 10 a , 10 b , 10 c , 10 d ) provided to be opposed to said first electrode section at a prescribed distance and including an electret film ( 12 , 12 a ) capable of storing charges and a first conductive layer ( 14 , 14 a , 14 b ) formed on a prescribed region of an upper surface of said electret film; and a first insulating film ( 13 , 13 a ) interposed between said electret film and said first conductive layer, wherein said first conductive layer and said first insulating film are formed in substantially the same shape in plan view.