Patents by Inventor Hogyu Han

Hogyu Han 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).

  • Compound used as an amino-protecting group, process for preparing the same, and synthetic method of a peptide using the same
    Patent number: 6759511
    Abstract: The present invention relates to a carbonic acid ester compound of the following formula (1): in which X, Y, and Ar are defined in the specification, which can be easily combined with the amino group of an amino acid or removed therefrom under mild conditions, whereby the amino group can be effectively protected during peptide syntheses, process for preparing the same, and use of the same. Since the amino acid derivatives thus protected have high thermal and chemical stabilities and good solubility for organic solvents, peptides can be synthesized at a low cost with a high yield.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: July 6, 2004
    Assignee: Hanchem Co., Ltd.
    Inventors: Hogyu Han, Nakcheol Jeong, SangJo Lee, Jin Gab Oh, Hosung Yu
  • Novel compound used as an amino-protecting group, process for preparing the same, and synthetic method of a peptide using the same
    Publication number: 20030220469
    Abstract: The present invention relates to a carbonic acid ester compound of the following formula (1): 1
    Type: Application
    Filed: October 31, 2002
    Publication date: November 27, 2003
    Inventors: Hogyu Han, Nakcheol Jeong, SangJo Lee, Jin Gab Oh, Hosung Yu
  • Organometallic ligands for the localization and quantification of amyloid in vivo and in vitro
    Patent number: 6054114
    Abstract: Novel organometallic compounds for binding amyloid are described. Methods using such compounds for determining by imaging the localization or quantification of amyloid fibrils in a mammal, for diagnosing the degree of progression of Alzheimer's disease in a mammal, for monitoring the response to a therapy in a mammal having Alzheimer's disease, for identifying an agent useful for treating Alzheimer's disease, for treating Alzheimer's disease, and for detecting the presence of the infectious form of the prion protein, are also described.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: April 25, 2000
    Assignee: Massachusetts Institute of Technology
    Inventors: Peter T. Lansbury, Jr., Hogyu Han, Cheon-Gyu Cho, Weiguo Zhen, James D. Harper, Alan Davison