Patents by Inventor Sung Hwa CHOI

Sung Hwa CHOI 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: 20240170697
    Abstract: An apparatus for providing operation logic of a fuel cell system may include an activation part configured to perform activation on a fuel cell, and an operating performance part configured to perform constant current operation according to the performing of activation.
    Type: Application
    Filed: December 20, 2022
    Publication date: May 23, 2024
    Applicant: HYUNDAI MOBIS Co., Ltd.
    Inventors: Seung Kyu CHOI, Jin Hwa LEE, Hyo June LEE, Ju Ho SHIN, Kyung Jin LEE, Sung Chul LEE
  • Publication number: 20240170698
    Abstract: Disclosed is a method of fuel cell analysis. The method includes measuring at least a portion of an electrode of a fuel cell to determine a measured result. The method also includes analyzing a state of the fuel cell according to the measured result.
    Type: Application
    Filed: December 20, 2022
    Publication date: May 23, 2024
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventors: Hyo June LEE, Jin Hwa LEE, Sung Chul LEE, Ju Ho SHIN, Kyung Jin LEE, Seung Kyu CHOI
  • Publication number: 20240145939
    Abstract: A dual polarization antenna is disclosed in at least one embodiment of the present disclosure, including a base substrate, a power feeding unit supported on the base substrate, and a radiating plate supported on the power feeding unit, the power feeding unit includes a first feeding substrate and a second feeding substrate arranged to cross each other on the base substrate, the first feeding substrate includes a first feed line configured to supply a first reference phase signal to a first point on the radiating plate and to supply a first reverse phase signal having a reverse phase relative to the first reference phase signal, to a second point on the radiating plate, the second feeding substrate includes a second feed line configured to supply a second reference phase signal to a third point on the radiating plate and to supply a second reverse phase signal having a reverse phase relative to the second reference phase signal, to a fourth point on the radiating plate, and wherein the first feeding substrate
    Type: Application
    Filed: December 15, 2023
    Publication date: May 2, 2024
    Applicant: KMW INC.
    Inventors: Sung Hwan SO, Oh Seog CHOI, Seong Man KANG, Yong Won SEO, Myung Hwa KIM, Su Yong LEE
  • Publication number: 20240067668
    Abstract: The present invention relates to a heteroaryl derivative compound and a use thereof. Since the heteroaryl derivative of the present invention exhibits excellent inhibitory activity against EGFR, the heteroaryl derivative can be usefully used as a therapeutic agent for EGFR-associated diseases.
    Type: Application
    Filed: December 29, 2021
    Publication date: February 29, 2024
    Inventors: Yi Kyung Ko, Ah Reum Han, Jin Hee Park, Yeong Deok Lee, Hye Rim Im, Kyun Eun Kim, Dong Keun Hwang, Su Been Nam, Myung Hoe Heo, Se Rin Cho, Eun Hwa Ko, Sung Hwan Kim, Hwan Geun Choi
  • Patent number: 11020118
    Abstract: Disclosed is a peripheral nerve fixing apparatus, which includes: a suction unit configured to provide a negative pressure to a peripheral nerve at an end portion thereof to fix the peripheral nerve; and a negative pressure generating unit having a vacuum pump for generating a negative pressure and connected to the suction unit so that the negative pressure is provided to the suction unit, wherein at one surface of the end portion of the suction unit, the suction unit includes: a fixing unit provided to contact the peripheral nerve to keep a stable fixed state; and a suction hole formed in the fixing unit so that the negative pressure is provided to the peripheral nerve therethrough.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: June 1, 2021
    Assignee: Korea Institute of Science and Technology
    Inventors: Donghyun Hwang, Keehoon Kim, Yong Seok Ihn, Sehyuk Yim, Jinwoo Jeong, Sang Rok Oh, Kyung Su Park, Sung Hwa Choi
  • Publication number: 20190314023
    Abstract: Disclosed is a peripheral nerve fixing apparatus, which includes: a suction unit configured to provide a negative pressure to a peripheral nerve at an end portion thereof to fix the peripheral nerve; and a negative pressure generating unit having a vacuum pump for generating a negative pressure and connected to the suction unit so that the negative pressure is provided to the suction unit, wherein at one surface of the end portion of the suction unit, the suction unit includes: a fixing unit provided to contact the peripheral nerve to keep a stable fixed state; and a suction hole formed in the fixing unit so that the negative pressure is provided to the peripheral nerve therethrough.
    Type: Application
    Filed: February 27, 2019
    Publication date: October 17, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Donghyun HWANG, Keehoon KIM, Yong Seok IHN, Sehyuk YIM, Jinwoo JEONG, Sang Rok OH, Kyung Su PARK, Sung Hwa CHOI