Patents by Inventor San-Jung Lee

San-Jung Lee 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).

  • Exosome-based anticancer agent
    Patent number: 11952412
    Abstract: The present invention provides a recombinant exosome and uses thereof. More particularly, the present invention provides a recombinant exosome wherein a phagocytosis promoting protein is presented on the surface of the exosome.
    Type: Grant
    Filed: April 3, 2022
    Date of Patent: April 9, 2024
    Assignee: SHIFTBIO
    Inventors: Eun-ee Koh, Eun Jung Lee, Yoo Soo Yang, In-San Kim
  • Frequency-modulated dimming control system of discharge lamp
    Patent number: 6936979
    Abstract: The present invention discloses a frequency-modulated dimming control system of a discharge lamp. The frequency-modulated dimming control system of a discharge lamp includes including a voltage regulator having a variable output voltage for converting an input voltage into a bus voltage, wherein a level of the bus voltage is a predetermined ratio of the input voltage, for example 10% of the input voltage, and a ballast circuit for driving the discharge lamp by detecting a variation of the bus voltage and then providing a current to the discharge lamp in response to a frequency modulation of the ballast circuit and the variation of the bus voltage so as to control a light intensity of the discharge lamp.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: August 30, 2005
    Assignee: Delta Electronics, Inc.
    Inventors: San-Jung Lee, Ching-Ho Chou, Yu-Chi Lee
  • Frequency-modulated dimming control system of discharge lamp
    Publication number: 20040021432
    Abstract: The present invention discloses a frequency-modulated dimming control system of a discharge lamp. The frequency-modulated dimming control system of a discharge lamp includes including a voltage regulator having a variable output voltage for converting an input voltage into a bus voltage, wherein a level of the bus voltage is a predetermined ratio of the input voltage, for example 10 % of the input voltage, and a ballast circuit for driving the discharge lamp by detecting a variation of the bus voltage and then providing a current to the discharge lamp in response to a frequency modulation of the ballast circuit and the variation of the bus voltage so as to control a light intensity of the discharge lamp.
    Type: Application
    Filed: July 10, 2003
    Publication date: February 5, 2004
    Applicant: Delta Electronics, Inc.
    Inventors: San-Jung Lee, Ching-Ho Chou, Yu-Chi Lee