Patents by Inventor Dong Wan Jo

Dong Wan Jo 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).

  • Tantalum carbide-coated carbon material and method for manufacturing same
    Patent number: 11976353
    Abstract: The present disclosure relates to a tantalum carbide-coated carbon material and a method for manufacturing the same, and an aspect of the present disclosure provides a tantalum carbide-coated carbon material including: a carbon substrate; and a tantalum carbide coating layer formed on the carbon substrate by a CVD method, wherein microcracks included in the tantalum carbide coating layer have a maximum width of 1.5 ?m to 2.6 ?m.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: May 7, 2024
    Assignee: Tokai Carbon Korea Co., Ltd
    Inventor: Dong Wan Jo
  • Carbonated tantalum coating material
    Patent number: 11780732
    Abstract: The present disclosure relates to a tantalum carbide coating material, and more specifically, to a tantalum carbide coating material comprising: a carbon substrate; and a tantalum carbide coating formed on the carbon substrate, wherein a thermal expansion coefficient difference between the carbon substrate and the tantalum carbide coating is 1.0×10?6/° C. or more.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: October 10, 2023
    Assignee: TOKAI CARBON KOREA CO., LTD.
    Inventor: Dong Wan Jo
  • Tantalum carbide coated carbon material
    Patent number: 11697874
    Abstract: The present invention relates to a tantalum carbide coated carbon material, and more particularly, to a tantalum carbide coated carbon material including a tantalum carbide film having a surface contact angle of 50° or more and low surface energy.
    Type: Grant
    Filed: December 1, 2021
    Date of Patent: July 11, 2023
    Assignee: TOKAI CARBON KOREA CO., LTD
    Inventor: Dong Wan Jo
  • TANTALUM CARBIDE COATED CARBON MATERIAL
    Publication number: 20220170149
    Abstract: The present invention relates to a tantalum carbide coated carbon material, and more particularly, to a tantalum carbide coated carbon material including a tantalum carbide film having a surface contact angle of 50° or more and low surface energy.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 2, 2022
    Applicant: TOKAI CARBON KOREA CO., LTD
    Inventor: Dong Wan JO
  • TANTALUM CARBIDE-COATED CARBON MATERIAL AND METHOD FOR MANUFACTURING SAME
    Publication number: 20220170150
    Abstract: The present disclosure relates to a tantalum carbide-coated carbon material and a method for manufacturing the same, and an aspect of the present disclosure provides a tantalum carbide-coated carbon material including: a carbon substrate; and a tantalum carbide coating layer formed on the carbon substrate by a CVD method, wherein microcracks included in the tantalum carbide coating layer have a maximum width of 1.5 ?m to 2.6 ?m.
    Type: Application
    Filed: December 1, 2021
    Publication date: June 2, 2022
    Applicant: TOKAI CARBON KOREA CO., LTD.
    Inventor: Dong Wan JO
  • Method of manufacturing tantalum carbide coating layer using chemical vapor deposition and tantalum carbide manufactured using the same
    Patent number: 11268189
    Abstract: A method of manufacturing a material including tantalum carbide (TaC) with a particularly low impurity content, and a TaC material formed by the method are provided. The method includes preparing a base material, and forming a TaC coating layer on a surface of the base material at a temperature of 1,600° C. to 2,500° C.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: March 8, 2022
    Assignee: TOKAI CARBON KOREA CO., LTD
    Inventor: Dong Wan Jo
  • Carbon material having coating layer comprising TaC, and method for producing said carbon material
    Patent number: 11091833
    Abstract: The present invention relates to carbon material having, on the base material, a coating layer that includes TaC, and a method for producing the carbon material. For example, the carbon material may include a base material and a coating layer on the surface of the base material. The coating layer may include TaC, which may have a maximum diffraction peak value on the (111) surface, where diffraction peak values may be generated by diffractions of X-rays in XRD analysis.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 17, 2021
    Assignee: TOKAI CARBON KOREA CO., LTD
    Inventor: Dong Wan Jo
  • Carbon material having coating layer comprising tac, and method for producing said carbon material
    Patent number: 10883170
    Abstract: The present invention relates to carbon material having, on the base material, a coating layer that includes tantalum carbide (TaC), and a method for producing the carbon material. For example, the carbon material may include a base material and a coating layer on the surface of the base material. The coating layer may include TaC having average crystal grain size of 10-50 ?m.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: January 5, 2021
    Assignee: TOKAI CARBON KOREA CO., LTD
    Inventor: Dong Wan Jo
  • CARBONATED TANTALUM COATING MATERIAL
    Publication number: 20200207629
    Abstract: The present disclosure relates to a tantalum carbide coating material, and more specifically, to a tantalum carbide coating material comprising: a carbon substrate; and a tantalum carbide coating formed on the carbon substrate, wherein a thermal expansion coefficient difference between the carbon substrate and the tantalum carbide coating is 1.0×10?6/° C. or more.
    Type: Application
    Filed: December 17, 2019
    Publication date: July 2, 2020
    Inventor: Dong Wan JO
  • CARBON MATERIAL HAVING COATING LAYER COMPRISING TAC, AND METHOD FOR PRODUCING SAID CARBON MATERIAL
    Publication number: 20200149157
    Abstract: The present invention relates to carbon material having, on the base material, a coating layer that includes TaC, and a method for producing the carbon material. For example, the carbon material may include a base material and a coating layer on the surface of the base material. The coating layer may include TaC, which may have a maximum diffraction peak value on the (111) surface, where diffraction peak values may be generated by diffractions of X-rays in XRD analysis.
    Type: Application
    Filed: April 27, 2018
    Publication date: May 14, 2020
    Applicant: TOKAI CARBON KOREA CO., LTD
    Inventor: Dong Wan JO
  • CARBON MATERIAL HAVING COATING LAYER COMPRISING TAC, AND METHOD FOR PRODUCING SAID CARBON MATERIAL
    Publication number: 20200140997
    Abstract: The present invention relates to carbon material having, on the base material, a coating layer that includes tantalum carbide (TaC), and a method for producing the carbon material. For example, the carbon material may include a base material and a coating layer on the surface of the base material. The coating layer may include TaC having average crystal grain size of 10-50 ?m.
    Type: Application
    Filed: April 27, 2018
    Publication date: May 7, 2020
    Applicant: TOKAI CARBON KOREA CO., LTD
    Inventor: Dong Wan JO
  • METHOD OF MANUFACTURING TANTALUM CARBIDE COATING LAYER USING CHEMICAL VAPOR DEPOSITION AND TANTALUM CARBIDE MANUFACTURED USING THE SAME
    Publication number: 20190185995
    Abstract: A method of manufacturing a material including tantalum carbide (TaC) with a particularly low impurity content, and a TaC material formed by the method are provided. The method includes preparing a base material, and forming a TaC coating layer on a surface of the base material at a temperature of 1,600° C. to 2,500° C.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 20, 2019
    Inventor: Dong Wan Jo