Patents by Inventor Cheol-Soo Lee

Cheol-Soo 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).

  • Publication number: 20240079547
    Abstract: The present invention relates to electrode slurry coating apparatus and method, the present invention ultimately allowing the process efficiency to be increased and rate of errors to be reduced when double-layer structured active material layers are formed by temporally adjusting the height of first and second discharge outlets through which active material is discharged.
    Type: Application
    Filed: November 7, 2023
    Publication date: March 7, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Taek Soo Lee, Young Joon Jo, Sang Hoon Choy, Ki Tae Kim, Ji Hee Yoon, Cheol Woo Kim
  • Patent number: 11450973
    Abstract: An all metal wideband tapered slot phase array antenna includes: a ground plate; and a plurality of antennas arranged on the ground plate, wherein each of the antennas includes radiators configured to face each other with respect to a center line, forming an inclined surface that starts from the ground plate and decreases in width in an exponential manner, and having a non-uniform thickness.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: September 20, 2022
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Joo Rae Park, Jeong Ho Ryu, Young Mi Park, Jae Won Chang, Cheol Soo Lee
  • Patent number: 11340305
    Abstract: An apparatus for estimating a state of a secondary battery (SB), including: a charging unit electrically connected to two terminals of the SB, the charging unit charging the SB, a voltage measuring unit electrically connected to and measuring a voltage across the two terminals of the SB, a time measuring unit for: receiving a voltage value of the SB from the voltage measuring unit, and during charging of the SB, in a predefined voltage range, measuring a charge time of the SB corresponding to the voltage range multiple times, and a control unit for: transmitting/receiving an electrical signal to/from the charging unit, the voltage measuring unit, and the time measuring unit, calculating a ratio of a first charge time and a second charge time measured by the time measuring unit sequentially at a time interval, and estimating a state of the SB.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: May 24, 2022
    Assignee: LG Energy Solution, Ltd.
    Inventors: Se-Wook Seo, Jin-Hyung Lim, Cheol-Soo Lee
  • Publication number: 20200174083
    Abstract: An apparatus for estimating a state of a secondary battery (SB), including: a charging unit electrically connected to two terminals of the SB, the charging unit charging the SB, a voltage measuring unit electrically connected to and measuring a voltage across the two terminals of the SB, a time measuring unit for: receiving a voltage value of the SB from the voltage measuring unit, and during charging of the SB, in a predefined voltage range, measuring a charge time of the SB corresponding to the voltage range multiple times, and a control unit for: transmitting/receiving an electrical signal to/from the charging unit, the voltage measuring unit, and the time measuring unit, calculating a ratio of a first charge time and a second charge time measured by the time measuring unit sequentially at a time interval, and estimating a state of the SB.
    Type: Application
    Filed: January 25, 2019
    Publication date: June 4, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Se-Wook SEO, Jin-Hyung LIM, Cheol-Soo LEE
  • Patent number: 9254471
    Abstract: Method and apparatus for synthesizing an F-18 labeled radioactive pharmaceutical by labeling a precursor with an F-18 radioactive isotope, by reacting the labeled precursor to obtain a labeled pharmaceutical, by separating impurities from the labeled pharmaceutical to provide a purified labeled pharmaceutical, and by collecting the purified labeled pharmaceutical. The apparatus includes a labeling cartridge that contains the precursor, receives the isotope, and causes a labeling reaction to provide the labeled precursor; a synthesizing container that receives the labeled precursor, receives at least one reagent effective to hydrolyze the labeled precursor, and within which the labeled precursor undergoes a hydrolysis reaction to provide the labeled pharmaceutical; and a separation cartridge that receives the labeled pharmaceutical, and contains a polymer compound that separates impurities into polar compounds and nonpolar compounds to provide the purified labeled pharmaceutical.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: February 9, 2016
    Assignee: SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Cheol-Soo Lee, Dae-Yoon Chi, Eun-Young Heo, Jong-Min Kim, Byoung-Se Lee, Hee-Seup Kil
  • Publication number: 20150087868
    Abstract: The present invention relates to an apparatus for synthesizing F-18 labeled radioactive pharmaceutical. The apparatus for synthesizing F-18 labeled radioactive pharmaceutical includes an F-18 radioactive isotope supplier, a reagent supplier, a polymer precursor cartridge, a first heating unit, a polymer compound cartridge, a synthesizing container, a second heating unit, a water liquid container, a transmitting gas supplier, a cleansing liquid supplier, a connection tube, a plurality of control valves, and a controller.
    Type: Application
    Filed: May 11, 2012
    Publication date: March 26, 2015
    Applicant: SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Cheol-Soo Lee, Dae-Yoon Chi, Eun-Young Heo, Jong-Min Kim, Byoung-Se Lee, Hee-Seup Kil