Patents by Inventor Wha-Jung Kim

Wha-Jung Kim 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).

  • Production method of titanium dioxide (TiO) photocatalyst and TiOphotocatalyst produced by the same
    Patent number: 7851407
    Abstract: A method for producing a titanium dioxide photocatalyst is provided. The method uses a sol-gel process wherein acid and base catalysts are added in two separate steps. According to the method, a titanium dioxide photocatalyst with increased mesoporosity can be produced without the use of any particular additive. Further, an anatase structure is formed upon drying and is maintained even after high-temperature calcination. Further provided is a titanium dioxide photocatalyst produced by the method. Further provided is a titanium dioxide photocatalyst doped with sulfur and zirconium, which is produced by using the method. The doped titanium dioxide photocatalyst exhibits catalytic activity even under visible light and excellent surface characteristics to achieve improved photocatalytic activity.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: December 14, 2010
    Assignee: Kyungpook National University Industry-Academic Cooperation Foundation
    Inventors: Tae Jeong Kim, Wha Jung Kim, Sun Woo Kim
  • PRODUCTION METHOD OF TITANIUM DIOXIDE (TiO2) PHOTOCATALYST AND TiO2 PHOTOCATALYST PRODUCED BY THE SAME
    Publication number: 20090286676
    Abstract: A method for producing a titanium dioxide photocatalyst is provided. The method uses a sol-gel process wherein acid and base catalysts are added in two separate steps. According to the method, a titanium dioxide photocatalyst with increased mesoporosity can be produced without the use of any particular additive. Further, an anatase structure is formed upon drying and is maintained even after high-temperature calcination. Further provided is a titanium dioxide photocatalyst produced by the method. Further provided is a titanium dioxide photocatalyst doped with sulfur and zirconium, which is produced by using the method. The doped titanium dioxide photocatalyst exhibits catalytic activity even under visible light and excellent surface characteristics to achieve improved photocatalytic activity.
    Type: Application
    Filed: May 19, 2008
    Publication date: November 19, 2009
    Applicant: Kyungpook National University Industry- Academic Cooperation Foundation
    Inventors: Tae Jeong Kim, Wha Jung Kim, Sun Woo Kim
  • Method of preparing ZSM-5 using variable temperature without organic template
    Patent number: 7361328
    Abstract: Disclosed is a method of preparing ZSM-5 having substantially 100% crystallinity by using variable temperatures in the absence of an organic template, characterized in that a reaction mixture having a molar composition of M2O/SiO2 (M: alkali metal ion) of 0.07-0.14, H2O/SiO2 of 15-42 and SiO2/Al2O3 of 20-100 is nucleated at relatively high temperatures (180-210° C.) and then crystallized at relatively low temperatures (130-170° C.), thus easily controlling a crystal size and a particle size distribution of the ZSM-5.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: April 22, 2008
    Assignee: SK Corporation
    Inventors: Wha-Jung Kim, Shin-Dong Kim
  • Method of preparing zsm-5 using variable temperature without organic template
    Publication number: 20060111234
    Abstract: Disclosed is a method of preparing ZSM-5 having substantially 100% crystallinity by using variable temperatures in the absence of an organic template, characterized in that a reaction mixture having a molar composition of M2O/SiO2 (M: alkali metal ion) of 0.07-0.14, H2O/SiO2 of 15-42 and SiO2/Al2O3 of 20-100 is nucleated at relatively high temperatures (180-210° C.) and then crystallized at relatively low temperatures (130-170° C.), thus easily controlling a crystal size and a particle size distribution of the ZSM-5.
    Type: Application
    Filed: December 22, 2003
    Publication date: May 25, 2006
    Applicant: SK CORPORATION
    Inventors: Wha-Jung Kim, Shin-Dong Kim
  • IgE-dependent histamine-releasing factor-binding peptides
    Patent number: 6710165
    Abstract: Disclosed are IgE-dependent histamine-releasing factor (HRF) receptor, HRF-binding peptides and nucleic acids encoding the same, and uses thereof in the medicinal area.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: March 23, 2004
    Inventors: Kyunglim Lee, Junho Chung, Wha Jung Kim, Miyoung Kim, Jaehoon Jung
  • I g E-dependent histamine-releasing factor (HRF) receptor, HRF-binding peptides and nucleic acids encoding the same, and uses thereof
    Publication number: 20020095023
    Abstract: Disclosed are IgE-dependent histamine-releasing factor (HRF) receptor, HRF-binding peptides and nucleic acids encoding the same, and uses thereof in the medicinal area.
    Type: Application
    Filed: June 1, 2001
    Publication date: July 18, 2002
    Inventors: Kyunglim Lee, Junho Chung, Wha Jung Kim, Miyoung Kim, Jaehoon Jung