Patents by Inventor Hyun-Jeong Choi

Hyun-Jeong 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: 20240128480
    Abstract: An exemplary embodiment of the present disclosure provides a separator for a fuel cell, which is stacked on a reaction layer including a membrane electrode assembly (MEA). The separator includes a plate body stacked on the reaction layer, a wave pattern provided on one surface of the plate body that faces the reaction layer, the wave pattern being configured to define a reaction channel disposed between the reaction layer and the plate body and provided in a first direction in which a reactant gas is supplied, so that the reactant gas flows along the reaction channel, and a land provided along a lateral end of the wave pattern and disposed to be in contact with the reaction layer, thereby obtaining an advantageous effect of improving performance and operational efficiency.
    Type: Application
    Filed: December 20, 2022
    Publication date: April 18, 2024
    Applicant: HYUNDAI MOBIS Co., Ltd.
    Inventors: Sun Hwi KIM, Hyun Kyu CHOI, Bae Jung KIM, Chan Gi KIM, Hyun Jeong KIM, Ah Reum KIM
  • Publication number: 20240107639
    Abstract: An embodiment of the present disclosure provides a thermal processing apparatus and an operation method thereof capable of controlling a heat distribution of a substrate at a low cost in a thermal processing process using a microwave. According to the present disclosure, a thermal processing apparatus includes a chamber that forms a thermal processing space of a substrate, a substrate support unit that is located at a lower portion of the thermal processing space and supports the substrate, and a microwave unit that is located at an upper portion of the thermal processing space and forms an electromagnetic field by the microwave in the thermal processing space.
    Type: Application
    Filed: May 31, 2023
    Publication date: March 28, 2024
    Applicant: SEMES CO., LTD.
    Inventors: Han Lim KANG, Yoon Seok CHOI, Yun Sang KIM, Hyun Woo JO, Sang Jeong LEE
  • Patent number: 8433722
    Abstract: An objection identification system includes a virtual object database (DB) in which a plurality of virtual objects is stored and a target virtual object. The virtual objects includes an attribute data set including an attribute value of a real object and a service data set including a service data related to the real object. The target virtual object determining part receives a real object identification data of a target real object previewed by a terminal to compute an attribute value of the target real object, and determines a virtual object having an attribute value matched to an attribute value of the computed target real object of plural virtual objects stored in the virtual object DB as a target virtual object. In this case, a service data included in the service data set of the determined target virtual object by the target virtual object determining part is transmitted to the terminal.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: April 30, 2013
    Assignee: Kiwiple Co., Ltd.
    Inventors: Eui-Hyun Shin, Hyun-Jeong Choi, Sung-Yong Park
  • Publication number: 20110161365
    Abstract: An objection identification system includes a virtual object database (DB) in which a plurality of virtual objects is stored and a target virtual object. The virtual objects includes an attribute data set including an attribute value of a real object and a service data set including a service data related to the real object. The target virtual object determining part receives a real object identification data of a target real object previewed by a terminal to compute an attribute value of the target real object, and determines a virtual object having an attribute value matched to an attribute value of the computed target real object of plural virtual objects stored in the virtual object DB as a target virtual object. In this case, a service data included in the service data set of the determined target virtual object by the target virtual object determining part is transmitted to the terminal.
    Type: Application
    Filed: August 26, 2009
    Publication date: June 30, 2011
    Inventors: Eiu-Hyun Shin, Hyun-Jeong Choi, Sung-Yong Park