Patents by Inventor Byung-Do Yoo

Byung-Do Yoo 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: 20240072267
    Abstract: A separator assembly for a fuel cell and a fuel cell stack including the same, is uniformly capable of forming a surface pressure of a region where a reaction gas flows when a stack is stacked by adjusting a height and shape of a gasket line for each region in which the reaction gas flows.
    Type: Application
    Filed: April 17, 2023
    Publication date: February 29, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Jin Hyeok Yoo, Sun Do Shin, Kyeong Min Kim, Byung Gun Song
  • Patent number: 7310854
    Abstract: A dust cover of a vacuum cleaner is installed to be separable from a dust collecting chamber so as to open/close the dust collecting chamber in which a dust bag filtering sucked dust is mounted, and has a support part to which the dust bag is mounted at its inside, thereby easily performing processes of mounting the dust bag to a vacuum cleaner and separating the dust bag from the vacuum cleaner and discarding without an external contamination.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: December 25, 2007
    Assignee: LG Electronics Inc.
    Inventors: Hyeun-Sik Nam, Byung-Do Yoo, Heon Pyeong Ji
  • Patent number: 7174604
    Abstract: The present invention relates to an upright vacuum cleaner. An upright vacuum cleaner according to the present invention includes a main body for housing a suction power generating device for sucking air and a filtering device for filtering out foreign substances contained in the sucked air. A suction nozzle is pivotably connected to a lower portion of the main body for sucking the air containing the foreign substances and then guiding the sucked air into the main body. A handle is installed at the top of the main body and is designed to be gripped by a user in use. The potentiometer, or some other device for controlling the electric current applied to the suction power generating device, is installed at one side surface of the handle. The potentiometer allows the user to control a suction power level and on/off operations of the vacuum cleaner by means of a sliding manipulation. Further, the potentiometer is preferably installed at a front surface of the handle.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: February 13, 2007
    Assignee: LG Electronics Inc.
    Inventors: Byung-Do Yoo, Suk-Young Kim
  • Publication number: 20050081323
    Abstract: A dust cover of a vacuum cleaner is installed to be separable from a dust collecting chamber so as to open/close the dust collecting chamber in which a dust bag filtering sucked dust is mounted, and has a support part to which the dust bag is mounted at its inside, thereby easily performing processes of mounting the dust bag to a vacuum cleaner and separating the dust bag from the vacuum cleaner and discarding without an external contamination.
    Type: Application
    Filed: January 16, 2004
    Publication date: April 21, 2005
    Inventors: Hyeun-Sik Nam, Byung-Do Yoo, Heon Ji
  • Publication number: 20040083571
    Abstract: The present invention relates to an upright vacuum cleaner. The upright vacuum cleaner according to the present invention comprises a main body for housing a suction power generating means for sucking air and a filtering means for filtering out foreign substances contained in the sucked air; a suction nozzle pivotably connected to a lower portion of the main body for sucking the air containing the foreign substances and then guiding the sucked air into the main body; a handle installed at the top of the main body and gripped by a user in use; and a potential meter installed at one side surface of the handle and capable of controlling a suction power level and on/off operations of the vacuum cleaner by means of a sliding manipulation. Further, the potential meter is preferably installed at a front surface of the handle.
    Type: Application
    Filed: February 25, 2003
    Publication date: May 6, 2004
    Applicant: LG Electronics Inc.
    Inventors: Byung-Do Yoo, Suk-Young Kim