The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2009
Filed:
May. 15, 2008
Isao Takahashi, Miyagi-ken, JP;
Isao Takahashi, Miyagi-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
An electrostatic actuator includes a stator having a plurality of protruding electrodes formed on a surface of a base material, where the surface serves as a counter surface, and a mover disposed so as to face the stator, where the mover has a plurality of protruding electrodes formed on a surface of a base material and the surface serves as a counter surface. A side surface of each of the protruding electrodes of the stator faces a side surface of a corresponding one of the protruding electrodes of the mover. Planar electrodes are formed on at least one of the counter surface of the stator and the counter surface of the mover in a portion other than a portion where the protruding electrodes are formed, and the planar electrodes face end surfaces of the protruding electrodes formed on the other counter surface.