Patents by Inventor Taek S. Kim

Taek S. 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).

  • Ginkgolide derivatives
    Patent number: 5541183
    Abstract: The present invention is directed to new ginkgolide derivatives, which may be used for the prevention or treatment of various PAF-induced diseases, and the pharmaceutical uses of these derivatives. The present invention is also directed to a process for preparing these ginkgolide derivatives.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: July 30, 1996
    Assignee: Sunkyong Industries Co., Ltd.
    Inventors: Pyeong-Uk Park, Sungsoo Pyo, Suk-Kwan Lee, Jin H. Sung, Wie J. Kwak, Hwa-Kun Park, Yong-Baik Cho, Geun Ho Ryu, Taek S. Kim
  • Method of making liquid crystal display elements using ceramic filter to determine spacer size
    Patent number: 5210629
    Abstract: A ceramic filter for using in making liquid crystal display elements includes a plurality of rectangular apertures adapted to permit glass spacers having the size no more than a predetermined size to pass therethrough and a method thereof, capable of selecting easily glass spacers of a uniform size according to the use of the ceramic filter and of preventing glass spacers from lumping together by mixing them in a diluted solution and then pouring a liquid crystal orientation solution in the mixture, and of providing a uniform cell gap and a uniform ground color. It is possible to avoid entering of ionic materials by virtue of the use of ceramic filter, thereby providing a uniform cell gap.
    Type: Grant
    Filed: December 6, 1991
    Date of Patent: May 11, 1993
    Assignee: Goldstar Co., Ltd.
    Inventor: Taek S. Kim