Patents by Inventor Won Jang Lee

Won Jang 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: 20240167711
    Abstract: The simulation system for predicting heating and cooling loads of a building comprises the collection unit collecting measurement data of a target building from a BEMS, the identification unit identifying indoor and outdoor temperature, humidity, and insolation measured in the building in real time based on RTS method, the correlation derivation unit deriving a correlation between energy usage based on the BEMS measurement data collected by the collection unit and the cooling and heating loads according to indoor and outdoor temperature, humidity, and insolation identified by the identification unit, the simulation unit predicting a change in cooling and heating loads according to a change in at least one of pieces of measurement data based on the correlation derived from the correlation derivation unit to perform a simulation, and the information provision unit providing a simulation result from the simulation unit in a visible form to a user terminal.
    Type: Application
    Filed: September 19, 2023
    Publication date: May 23, 2024
    Inventors: Tae Dong LEE, Won Jang PARK, Min Ho CHOI, Soo Hyun YANG, Moo Kyung SEO, Han Sung CHOI, Hye Mi LIM, Ji Hun PARK, So Jeong PARK, Ki Bum HAN, Hyeong Jae JEON
  • Publication number: 20240130227
    Abstract: The present invention provides a heterocyclic compound represented by Formula 1 and an organic light-emitting device comprising the same.
    Type: Application
    Filed: November 16, 2021
    Publication date: April 18, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Dong Jin LEE, Gi Back LEE, Won Jang JEONG, Dong Jun KIM
  • Publication number: 20240108406
    Abstract: The present invention relates to a renal denervation catheter which detects contact of a heating electrode with a renal vessel surface and detects reaction sensitivity of a target nerve by a detection electrode so as to excise only the target nerve. To this end, the renal denervation catheter is disclosed, wherein the renal denervation catheter comprises: a catheter housing; an electrode part provided in a housing, emitting a contact detection RF signal for contact with the inner wall of the renal vessel according to a contact detection mode, and emitting a denervation RF signal for renal denervation according to a denervation mode; a control part for allowing to enter the denervation mode when a contact detection feedback signal value generated by the contact detection mode satisfies a defined condition.
    Type: Application
    Filed: April 5, 2021
    Publication date: April 4, 2024
    Inventors: Do-hyoung KIM, Won-jang Lee
  • Publication number: 20240107788
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device including the same.
    Type: Application
    Filed: June 3, 2021
    Publication date: March 28, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Seong-Jong PARK, Won-Jang JEONG, Dong-Jun KIM
  • Publication number: 20240092776
    Abstract: Disclosed (or Provided) are a heterocyclic compound and an organic light emitting device including the same.
    Type: Application
    Filed: June 22, 2023
    Publication date: March 21, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Hyung-Jin LEE, Won-Jang JEONG, Dong-Jun KIM, Dae-Hyuk CHOI
  • Publication number: 20240083887
    Abstract: The present specification relates to a heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device including the same.
    Type: Application
    Filed: June 3, 2021
    Publication date: March 14, 2024
    Applicant: LT MATERIALS CO., LTD.
    Inventors: Gi-Back LEE, Ji-Un KIM, Won-Jang JEONG, Dong-Jun KIM
  • Publication number: 20200330746
    Abstract: A multichannel stimulation system for regenerating damaged corneal nerves, includes: electrically contacting a contactor of the multichannel unit with the stimulation signal module; providing an electric pulse signal, by the stimulation signal module; transferring an electric pulse signal of a first duration time and an electric pulse signal of a seventh duration time to the first channel, and transferring an electric pulse signal; maintaining an adjusted magnitude of the absolute value of an electric pulse signal when the magnitude of the absolute value of the electric pulse signal desired by a user is adjusted; and confirming whether impedance measured between the first channel and an area where the first channel is attached and impedance measured between the second channel and an area where the second channel is attached exceed a reference impedance.
    Type: Application
    Filed: January 14, 2020
    Publication date: October 22, 2020
    Inventors: Do-Hyoung KIM, Pyung-Kyu KIM, Joo-Wan SEO, Won-Jang LEE
  • Patent number: 10786667
    Abstract: A multichannel stimulation system for regenerating damaged corneal nerves, includes: electrically contacting a contactor of the multichannel unit with the stimulation signal module; providing an electric pulse signal, by the stimulation signal module; transferring an electric pulse signal of a first duration time and an electric pulse signal of a seventh duration time to the first channel, and transferring an electric pulse signal; maintaining an adjusted magnitude of the absolute value of an electric pulse signal when the magnitude of the absolute value of the electric pulse signal desired by a user is adjusted; and confirming whether impedance measured between the first channel and an area where the first channel is attached and impedance measured between the second channel and an area where the second channel is attached exceed a reference impedance.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: September 29, 2020
    Assignee: NU EYNE CO., LTD.
    Inventors: Do-Hyoung Kim, Pyung-Kyu Kim, Joo-Wan Seo, Won-Jang Lee
  • Patent number: 10695566
    Abstract: A multichannel stimulation system for regenerating damaged corneal nerves, includes: a multichannel unit including a first channel formed of a conductive material and attached between an area above a left eye and a left eyebrow to transfer a stimulation signal, and a second channel formed of a conductive material and attached between an area above a right eye and a right eyebrow to transfer the stimulation signal; and a stimulation signal module for providing the first channel and the second channel with an electric pulse signal as the stimulation signal, wherein the multichannel unit includes a contactor formed between the first channel and the second channel in one piece to electrically contact with the stimulation signal module.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: June 30, 2020
    Assignee: NU EYNE CO., LTD.
    Inventors: Do-Hyoung Kim, Pyung-Kyu Kim, Joo-Wan Seo, Won-Jang Lee
  • Patent number: 6586616
    Abstract: The present invention relates to a process for preparing (R)-4-cyano-3-hydroxybutyric acid ester derivatives and more particularly, to a process for preparing optically pure (R)-4-cyano-3-hydroxybutyric acid ester derivatives expressed by formula (1) in high yield by performing cyanation and sequential esterification of (S)-3,4-epoxybutyric acid salt as a starting material. In said formula, R represents linear or branched alkyl group with 1˜5 carbon atoms or benzyl group.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: July 1, 2003
    Assignee: Samsung Fine Chemicals Co., Ltd.
    Inventors: Kyoung Rok Roh, Ho Sung Yu, Kyung Il Kim, Won Jang Lee, Dae Il Hwang
  • Patent number: 6417403
    Abstract: A process for the preparation of chiral (S)-2,3-disubstituted-1-propylamine derivatives, in which a carbonyl group of (S) 3,4-disubstituted-1-butanecarbonyl derivatives is converted to an amine group, and the conversion reaction is performed through Curtius rearrangement or Hoffman rearrangement.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: July 9, 2002
    Assignee: Samsung Fine Chemicals Co., Ltd.
    Inventors: Kyoung Rok Roh, Jung Hwan Lee, Dae Il Hwang, Won Jang Lee, Kyung-Il Kim