Patents by Inventor Sang Gap Lee

Sang Gap 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).

  • Cryoprobe using closed gas loop for nuclear magnetic resonance apparatus
    Patent number: 9448292
    Abstract: Provided is a cryoprobe using a closed gas loop for a nuclear magnetic resonance apparatus, including: superconducting magnets providing a magnetic field; a rotor rotatably disposed between the superconducting magnets in the state of a sample being put therein, the rotor being rotated by a driving gas; a coil configured to generate a nuclear magnetic resonance spectrum according to a resonance phenomenon of the sample by applying a radio frequency to the rotor; and a gas loop configured to cool the driving gas in a cryogenic condition while circulating it in a closed-loop condition and to supply the driving gas to the rotor, wherein the gas loop supplies the driving gas to the rotor while cooling it in a cryogenic condition, thereby rotating the rotor.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: September 20, 2016
    Assignee: KOREA BASIC SCIENCE INSTITUTE
    Inventors: Yeon Suk Choi, Seung Young Park, Sang Gap Lee
  • CRYOPROBE USING CLOSED GAS LOOP FOR NUCLEAR MAGNETIC RESONANCE APPARATUS
    Publication number: 20150111751
    Abstract: Provided is a cryoprobe using a closed gas loop for a nuclear magnetic resonance apparatus, including: superconducting magnets providing a magnetic field; a rotor rotatably disposed between the superconducting magnets in the state of a sample being put therein, the rotor being rotated by a driving gas; a coil configured to generate a nuclear magnetic resonance spectrum according to a resonance phenomenon of the sample by applying a radio frequency to the rotor; and a gas loop configured to cool the driving gas in a cryogenic condition while circulating it in a closed-loop condition and to supply the driving gas to the rotor, wherein the gas loop supplies the driving gas to the rotor while cooling it in a cryogenic condition, thereby rotating the rotor.
    Type: Application
    Filed: December 16, 2013
    Publication date: April 23, 2015
    Applicant: KOREA BASIC SCIENCE INSTITUTE
    Inventors: Yeon Suk Choi, Seung Young Park, Sang Gap Lee