Patents by Inventor Young-chul Gil

Young-chul Gil 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).

  • Fibrous zeolite ZSM-5 and preparation method thereof
    Patent number: 5772980
    Abstract: There are disclosed a fibrous zeolite ZSM-5 and a preparation method thereof. The fibrous zeolite ZSM-5 which is represented by xSiO.sub.2 (1-x)Al.sub.2 O.sub.3 (x is 0.9429.about.0.9943) can be directly used as a reinforcement material because of its fibrous form, and has sufficient sites on which other substances can be easily adsorbed and from which the adsorbed substances can be easily desorbed. Also, the fibrous zeolite can be applied to an optical material due to its transparent property.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: June 30, 1998
    Assignee: Daelim Engineering Co., Ltd.
    Inventors: Yong-gun Sul, Kyeong-taek Jung, Jin-ho Hyun, Du-soung Kim, Young-chul Gil
  • Fibrous zeolite and preparation method thereof
    Patent number: 5582819
    Abstract: There are disclosed a fibrous zeolite and a preparation method thereof wherein the fibrous zeolite, represented as xTiO.sub.2.(1-x)SiO.sub.2 (x is 0.02.about.0.1), which is easy to adsorb and desorb, and is easy to use as a functional material, and can be directly used as a reinforcement material.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 10, 1996
    Assignee: Daelim Engineering Co., Ltd.
    Inventors: Yong-gun Shul, Cheon-hee Lee, Young-chul Gil, Du-soung Kim