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.

Date of Patent:
Oct. 06, 2020

Filed:

Nov. 05, 2018
Applicant:

The Board of Trustees of the University of Illinois, Urbana, IL (US);

Inventors:

Seok Kim, Champaign, IL (US);

Zining Yang, Champaign, IL (US);

Jun Kyu Park, Champaign, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 7/08 (2006.01); G02B 26/02 (2006.01); G02B 26/00 (2006.01); G02B 1/00 (2006.01); B82Y 25/00 (2011.01); H01F 41/02 (2006.01);
U.S. Cl.
CPC ...
H01F 7/081 (2013.01); B82Y 25/00 (2013.01); G02B 1/005 (2013.01); G02B 26/02 (2013.01); G02B 26/023 (2013.01); G02B 26/007 (2013.01); H01F 41/02 (2013.01);
Abstract

A magnetically-responsive surface structure comprises an array of hybrid microstructures on a substrate, where each hybrid microstructure comprises an elastomeric micropillar attached to the substrate and a rigid tile attached to the elastomeric micropillar. The rigid tiles collectively define a discontinuous, changeable surface. The hybrid microstructures further comprise a ferromagnetic material. The elastomeric micropillars are deflectable under a magnetic field so as to alter an orientation of the rigid tiles, thereby allowing a characteristic of the discontinuous, changeable surface to be manipulated.


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