Patents by Inventor Yeo-heung YOON

Yeo-heung YOON has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Electrode structure having rolled graphene film
    Patent number: 9978534
    Abstract: An electrode structure includes a rolled graphene film which is wound about a central axis, and a nanomaterial dispersed on a surface of the rolled graphene film.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: May 22, 2018
    Assignees: SAMSUNG ELECTRONICS CO., LTD., CORNING PRECISION MATERIALS CO., LTD.
    Inventors: Yeo-heung Yoon, Hyo-young Lee, Soon-geun Kwon, Jae-young Choi
  • Aggregated graphene oxide and preparing method thereof, aggregated graphene and preparing method thereof, and aggregated and nitrogen-doped graphene and preparing method thereof
    Patent number: 9284195
    Abstract: Aggregated graphene oxide includes a range of specific surface area, and a method of preparing aggregated graphene oxide includes dispersing graphene oxide in an organic solvent and adding an anti-solvent. Aggregated graphene includes a range of specific surface area, and a method of preparing aggregated graphene includes dispersing graphene oxide in an organic solvent, adding an anti-solvent, and reducing the aggregated graphene oxide. Aggregated and nitrogen-doped includes a range of specific surface area, and a method of preparing aggregated and nitrogen-doped graphene includes dispersing graphene oxide in an organic solvent, adding an anti-solvent, and photo-reacting the aggregated graphene oxide.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: March 15, 2016
    Assignee: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Hyoyoung Lee, Yeo Heung Yoon, Chul Baik, Keun Sik Lee
  • METHOD FOR FORMING GRAPHENE QUANTUM DOT
    Publication number: 20150298977
    Abstract: In a method for forming a graphene quantum dot, a first reduced graphene oxide product having a first size is formed by applying microwaves to a graphene oxide material. The first reduced graphene oxide product is oxidized by applying microwaves to a mixed solution including an acid solution, a first oxidant, and the first reduced graphene oxide product so as to form a first graphene oxide product having a second size. Microwaves are applied to the first graphene oxide product so as to form a second reduced graphene oxide product having a third size which is smaller than the first size.
    Type: Application
    Filed: October 10, 2013
    Publication date: October 22, 2015
    Applicant: GRAPHENEALL CO., LTD.
    Inventor: Yeo Heung Yoon
  • Method for Forming Graphene Oxide
    Publication number: 20150274531
    Abstract: Graphite is oxidized using an acid so as to form a first reaction product that comprises graphene oxide. The acid is recovered from the first reaction product. Graphite is oxidized using the recovered acid so as to form a recycle-reaction product that comprises graphene oxide.
    Type: Application
    Filed: October 10, 2013
    Publication date: October 1, 2015
    Applicant: GRAPHENEALL CO., LTD.
    Inventor: Yeo Heung Yoon
  • AGGREGATED GRAPHENE OXIDE AND PREPARING METHOD THEREOF, AGGREGATED GRAPHENE AND PREPARING METHOD THEREOF, AND AGGREGATED AND NITROGEN-DOPED GRAPHENE AND PREPARING METHOD THEREOF
    Publication number: 20140287908
    Abstract: Aggregated graphene oxide includes a range of specific surface area, and a method of preparing aggregated graphene oxide includes dispersing graphene oxide in an organic solvent and adding an anti-solvent. Aggregated graphene includes a range of specific surface area, and a method of preparing aggregated graphene includes dispersing graphene oxide in an organic solvent, adding an anti-solvent, and reducing the aggregated graphene oxide. Aggregated and nitrogen-doped includes a range of specific surface area, and a method of preparing aggregated and nitrogen-doped graphene includes dispersing graphene oxide in an organic solvent, adding an anti-solvent, and photo-reacting the aggregated graphene oxide.
    Type: Application
    Filed: January 30, 2014
    Publication date: September 25, 2014
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Hyoyoung LEE, Yeo Heung YOON, Chul BAIK, Keun Sik LEE
  • ELECTRODE STRUCTURE HAVING ROLL SHAPE, ELECTRODE AND ELECTRIC DEVICE INCLUDING THE SAME, AND METHOD OF MANUFACTURING THE ELECTRODE STRUCTURE
    Publication number: 20140234680
    Abstract: An electrode structure includes a rolled graphene film which is wound about a central axis, and a nanomaterial dispersed on a surface of the rolled graphene film.
    Type: Application
    Filed: February 6, 2014
    Publication date: August 21, 2014
    Applicants: Samsung Corning Precision Materials Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Yeo-heung YOON, Hyo-young LEE, Soon-geun KWON, Jae-young CHOI