Abstract: The present specification provides a heating system including: a heating unit including a substrate and a heating layer provided on the substrate and including graphene; an electromagnetic wave irradiation unit configured to irradiate at least one region of the heating unit with electromagnetic waves; and a control unit configured to control an operation of the electromagnetic wave irradiation unit, wherein the heating layer emits heat by absorbing the electromagnetic waves.
Type:
Grant
Filed:
August 14, 2017
Date of Patent:
October 1, 2024
Assignees:
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, GRAPHENE SQUARE INC.
Inventors:
Byung Hee Hong, Sang Min Kang, Young Soo Kim
Abstract: A method of evaluating quality of graphene using a confocal laser scanning microscope, the method comprising steps of: irradiating with laser light a graphene layer formed on a catalyst layer; detecting a signal of light reflected from the graphene layer; forming a planar image of the graphene layer using the detected optical signal; and analyzing a contrast between graphene and the catalyst layer in the planar image, wherein the graphene layer is continuously formed on the catalyst layer by a roll-to-roll process.
Type:
Grant
Filed:
October 14, 2021
Date of Patent:
March 19, 2024
Assignees:
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, GRAPHENE SQUARE INC., Dankook University Cheonan Campus Industry Academic Cooperation Foundation
Inventors:
Byung Hee Hong, Dong Jin Kim, Yun Sung Woo
Abstract: The present specification provides a functional contact lens including: a lens substrate having a spherically curved surface so as to be worn on an eyeball; and a functional layer provided on at least one surface of the lens substrate and including a graphene sheet, and a method for manufacturing the same.
Type:
Grant
Filed:
August 14, 2017
Date of Patent:
March 12, 2024
Assignees:
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, GRAPHENE SQUARE INC.
Inventors:
Byung Hee Hong, Sangkyu Lee, Insu Jo, Sangmin Kang
Abstract: The present disclosure provides an electrode structure including a metal thin film and a patterned graphene-graphitic carbon composite layer disposed on the metal thin film, a method for fabricating the electrode structure using laser printing, and an electrochemical device including the same.
Type:
Grant
Filed:
June 1, 2018
Date of Patent:
December 12, 2023
Assignees:
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, GRAPHENE SQUARE, INC.
Inventors:
Byung Hee Hong, Sang Min Kang, Quang Trung Truong
Abstract: The present disclosure relates to a manufacturing method of a graphene fiber, a graphene fiber manufactured by the same method, and use thereof. The graphene fiber formed by using graphenes of linear pattern can be applied to various fields such as an electric wire and coaxial cable.
Type:
Grant
Filed:
August 8, 2012
Date of Patent:
March 16, 2021
Assignee:
GRAPHENE SQUARE INC.
Inventors:
Byung Hee Hong, Keun Soo Kim, Hyeong Keun Kim, Su Kang Bae
Abstract: The present disclosure provides an n-doping method of graphene, including supplying a reaction gas containing a carbon source and heat to a substrate and reacting to grow graphene on the substrate; and n-doping the graphene by a doping solution containing an n-type dopant or a vapor containing an n-type dopant, an n-doped graphene produced by the method, and a device including the n-doped graphene.
Abstract: A touch sensor capable of specifying a touch position and/or a degree of a touch pressure by using graphene as an electrode and/or a strain gauge, and more particular, a touch sensor capable of simultaneously detecting a pressure and a position by means of change in resistance by using graphene is provided.
Type:
Application
Filed:
December 23, 2011
Publication date:
October 31, 2013
Applicant:
GRAPHENE SQUARE INC.
Inventors:
Jong-Hyun Ahn, Byung Hee Hong, Young Bin Lee, Su Kang Bae, Hyeong Keun Kim