Patents by Inventor Byong Chol Bai

Byong Chol Bai 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).

  • Method for producing impregnated pitch from petroleum-based raw material and impregnated pitch produced thereby
    Patent number: 10844286
    Abstract: The present invention relates to a method for producing an impregnated pitch from a petroleum-based raw material and to an impregnated pitch produced using the same, and when the method for producing an impregnated pitch according to the present invention is used, it is possible to produce an impregnated pitch having a high carbonization yield (40 wt % or more) and low quinoline insoluble matter (QI, 2% or less) for improving efficiency of an impregnation process from a petroleum-based raw material. Therefore, when an impregnation process is applied to a carbon compact by using the impregnated pitch according to the present invention, it is possible to remarkably reduce micropores inside the carbon compact, and to produce a carbon compact having physical properties such as excellent electrical conductivity and mechanical strength.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: November 24, 2020
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Jong Gu Kim, Young-Pyo Jeon, Ji Sun Im, Byung Jin Song, Byong Chol Bai, Seung Hyun Ko, Jong Eun Choi
  • METHOD FOR PRODUCING IMPREGNATED PITCH FROM PETROLEUM-BASED RAW MATERIAL AND IMPREGNATED PITCH PRODUCED THEREBY
    Publication number: 20200123448
    Abstract: The present invention relates to a method for producing an impregnated pitch from a petroleum-based raw material and to an impregnated pitch produced using the same, and when the method for producing an impregnated pitch according to the present invention is used, it is possible to produce an impregnated pitch having a high carbonization yield (40 wt % or more) and low quinoline insoluble matter (QI, 2% or less) for improving efficiency of an impregnation process from a petroleum-based raw material. Therefore, when an impregnation process is applied to a carbon compact by using the impregnated pitch according to the present invention, it is possible to remarkably reduce micropores inside the carbon compact, and to produce a carbon compact having physical properties such as excellent electrical conductivity and mechanical strength.
    Type: Application
    Filed: December 26, 2017
    Publication date: April 23, 2020
    Inventors: Jong Gu Kim, Young-Pyo Jeon, Ji Sun Im, Byung Jin Song, Byong Chol Bai, Seung Hyun Ko, Jong Eun Choi