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:
Sep. 13, 2022
Filed:
Jun. 22, 2020
Industry-academic Cooperation Foundation, Korea National University of Transportation, Chungys-si, KR;
Imagis Co., Ltd, Suwon, KR;
Tae-Heon Yang, Chungys-si, KR;
Han Eol Bae, Suwon, KR;
Jong Reep Na, Suwon, KR;
Sung Won Kim, Suwon, KR;
Sung Un Kim, Suwon, KR;
INDUSTRY-ACADEMIC COOPERATION FOUNDATION, KOREA NATIONAL UNIVERSITY OF TRANSPORTATION, Chungys-si, KR;
IMAGIS Co., Ltd, Gyeonggi-do, KR;
Abstract
Proposed is an actuator using a bi-directional electrostatic force, which generates a bi-directional electrostatic force in order to amplify and vibrate the vibration of a vibrator. The actuator may include an upper electrostatic force generator configured to generate a first electrostatic force in response to a first high voltage signal, a lower electrostatic force generator configured to generate a second electrostatic force in response to a second high voltage signal having a phase difference with the first high voltage signal, and a vibration generator positioned in a space between the upper electrostatic force generator and the lower electrostatic force generator and configured to generate vibration in response to the first and second electrostatic forces.