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:
Dec. 31, 2013
Filed:
Feb. 01, 2011
Takeaki Shimanouchi, Kawasaki, JP;
Masahiko Imai, Kawasaki, JP;
Takashi Katsuki, Kawasaki, JP;
Osamu Toyoda, Kawasaki, JP;
Satoshi Ueda, Kawasaki, JP;
Takeaki Shimanouchi, Kawasaki, JP;
Masahiko Imai, Kawasaki, JP;
Takashi Katsuki, Kawasaki, JP;
Osamu Toyoda, Kawasaki, JP;
Satoshi Ueda, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A driving method for driving an electrostatic actuator including a fixed electrode and a movable electrode opposing each other with a dielectric layer interposed therebetween, includes applying a first voltage, between the fixed electrode and the movable electrode, to bring the movable electrode into contact with the dielectric layer, and applying a second voltage, between the fixed electrode and the movable electrode, after application of the first voltage is stopped and before the movable electrode moves away from the dielectric layer. Here, the second voltage has a polarity opposite to a polarity of the first voltage and an absolute value smaller than an absolute value of the first voltage.