Patent ID: 8466600
Filing Date: 2013-06-18
Classification: H01G,H02N

Abstract:
1. An electrostatic power generating device comprising: a substrate; a first electrode formed on a surface of said substrate; a second electrode and an electret film so formed as to be opposed to said first electrode at an interval therebetween; and a member inhibiting said first electrode and said electret film from moving close to each other within a prescribed interval, wherein said electrostatic power generating device generates an electric power when at least one of said first electrode and said electret film moves in a direction parallel to the longitudinal direction of said substrate and a relative distance between said first electrode and said electret film changes, said first electrode is interposed between said substrate and said electret film, said member is held by one of said substrate or said second electrode, said second electrode has a groove shaped recess portion and projecting portion provided on a surface of said second electrode, and said electret film is so formed as to be embedded on a bottom surface of said recess portion of said second electrode and said electret film is not formed on a surface of said projecting portion.