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:
Jun. 18, 2024
Filed:
Feb. 27, 2023
Applicant:
Korea University of Technology and Education Industry-university Cooperation Foundation, Cheonan-si, KR;
Inventors:
Yong Hae Heo, Cheonan-si, KR;
Hyun-U Ko, Cheonan-si, KR;
Seok-Han Lee, Cheonan-si, KR;
Seang Ho Kim, Jincheon-gun, KR;
Sang-Youn Kim, Seoul, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 7/20 (2006.01); H01F 1/44 (2006.01); H01F 13/00 (2006.01);
U.S. Cl.
CPC ...
H01F 13/00 (2013.01); H01F 1/447 (2013.01); H01F 7/20 (2013.01);
Abstract
The present invention relates to a haptic actuator based on a nutation structure using a squeeze mode of a magneto-rheological fluid, which compresses a magneto-rheological fluid (MR fluid) by using a rotary body capable of performing a rotary motion based on a nutation structure, thereby generating a sustainable rotational resistance force by using a squeeze mode and a flow mode of the MR fluid.