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:
Jul. 21, 2020
Filed:
Oct. 25, 2018
Applicant:
Korea Institute of Science and Technology, Seoul, KR;
Inventors:
Youngsu Cha, Seoul, KR;
Kahye Song, Seoul, KR;
Assignee:
Korea Institute of Science and Technology, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02N 1/00 (2006.01); H01L 41/09 (2006.01); C08K 3/22 (2006.01);
U.S. Cl.
CPC ...
H02N 1/006 (2013.01); C08K 3/22 (2013.01); C08K 2003/2275 (2013.01);
Abstract
A composite actuator device includes a composite material that is configured to be driven by applying power thereto and that is composed of a silicone; and from 1 to 20 wt % of an iron oxide mixed in the silicone; and a metal plate that is spaced apart from the composite material by a predetermined distance. When the power is applied, the composite actuator is driven toward the metal plate by an electrostatic attractive force. Preferably, the composite actuator device has a resonance frequency of 3±0.1 Hz.