Patents by Inventor Sun-Il Han

Sun-Il 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).

  • Magnetic field effect transistor
    Patent number: 9257540
    Abstract: A magnetic field effect transistor is presented. A magnetic field effect transistor comprises a current control part and a magnetic field applying part. A current control part comprises multiple electrodes and a current flowing material region located between multiple electrodes and in which the amount of current flowing between the electrodes is changed, and a magnetic field applying part applying a magnetic field generating from a magnetization state, which changes according to external input, of a pre-set material. By controlling current by using magnetic fields, high speed operation is possible as charging time is not required, and calculation results may be stored without external power supply because magnetic field is supplied by altering magnetization state of a material according to external input.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: February 9, 2016
    Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kungwon Rhie, Jin Ki Hong, Tae-Yueb Kim, Sung-Jung Joo, Jin-Seo Lee, Ku-Youl Jung, Dong-Seok Kim, Sun-Il Han
  • Piperidine derivatives, process for preparation thereof, and pharmaceutical composition for alzheimer's disease containing the same
    Patent number: 7288552
    Abstract: The present invention relates to novel piperidine derivatives having effect of inhibiting acetylcholinesterase and aggregation of ?-amyloid, Alzheimer's disease-induced protein, and treatment for Alzheimer's disease containing the same, the piperidine derivatives represented by Formula 3.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: October 30, 2007
    Assignee: STC NARA Co., Ltd.
    Inventors: Young-Ee Kwon, Jeong-Ho Kang, Hwa-Jung Lee, Sang-Jae Lee, Do-Wan Kim, Kang-Hoon Lee, Sun-Il Han, You-Sun Yoon
  • Piperidine derivatives, process for preparation thereof, and pharmaceutical composition for alzheimer's disease containing the same
    Publication number: 20050043316
    Abstract: The present invention relates to novel piperidine derivatives having effect of inhibiting acetylcholinesterase and aggregation of ?-amyloid, Alzheimer's disease-induced protein, and treatment for Alzheimer's disease containing the same, the piperidine derivatives represented by Formula 3.
    Type: Application
    Filed: October 16, 2002
    Publication date: February 24, 2005
    Inventors: Young-Ee Kwon, Jeong-Ho Kang, Hwa-Jung Lee, Sang-Jae Lee, Do-Wan Kim, Kang-Hoon Lee, Sun-Il Han, You-Sun Yoon