Patents by Inventor Ho-Song Cho

Ho-Song Cho 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).

  • Nonimmunosuppressive [&ggr;-hydroxy-methylleucine4] cyclosporin A, hair growth stimulator and external composition for skin using the same
    Patent number: 6521595
    Abstract: The present invention relates to methods for treating alopecia and stimulating hair growth and pharmaceutical compositions using nonimmunosuppressive [&ggr;-hydroxy-methylleucine4] cyclosporin A having superior hair growth-promoting effect, wherein the hydroxyl group is added to the carbon position of No. 4 methylleucine of cyclosporin A by the microorganism.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: February 18, 2003
    Assignee: LG Chemical, Ltd.
    Inventors: Sang-Nyun Kim, Ho-Jeong Ahn, Myung-Kee Kim, Jong-Il Kim, Jung-Hun Kim, Chang-Woo Lee, Min-Ho Lee, Chang-Deok Kim, Ho-Song Cho, Hyun-Sik Kim, Min-Hwan Jung, Seung-Jin Kim
  • Use of [gamma-hydroxy-N-methyl-leucine9] cyclosporin a for hair growth
    Publication number: 20020165133
    Abstract: The present invention discloses a hair growth promoter comprising [&ggr;-hydroxy-N-methyl-L-leucine9] cyclosporin A, in which a hydroxy group is added to a &ggr; carbon of N-methyl-L-leucine at No. 9 position in cyclosporin A by metabolic action of a microorganism, as an active ingredient.
    Type: Application
    Filed: February 12, 2002
    Publication date: November 7, 2002
    Inventors: Sang-Nyun Kim, Ho-Jeong Ahn, Chang-Woo Lee, Jung-Hun Kim, Jong-Il Kim, Heon-Sik Lee, Min-Ho Lee, Ho-Song Cho, Seung-Jin Kim, Hong-Soon Park