Patents by Inventor Jong-Kwan Ryu

Jong-Kwan Ryu 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).

  • Microwave sealing structure and microwave oven having the same
    Patent number: 6867404
    Abstract: A microwave sealing structure prevents leakage of microwave to the outside of the cavity in which microwave resonates, in an apparatus using microwave which includes a cavity in which an internal space is formed so that microwave can resonate having an opening, and a door for opening/closing the opening. In the structure, an equivalent impedance circuit, formed with a rim of the opening and a cross-section of the rim of the door to prevent leakage of microwave out of the cavity, is a LC resonant circuit.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: March 15, 2005
    Assignee: LG Electronics Inc.
    Inventors: Young-Min Lee, Yang-Kyeong Kim, Jong-Kwan Ryu
  • Microwave sealing structure and microwave oven having the same
    Publication number: 20030141298
    Abstract: A microwave sealing structure prevents leakage of microwave to the outside of the cavity in which microwave resonates, in an apparatus using microwave which includes a cavity in which an internal space is formed so that microwave can resonate having an opening, and a door for opening/closing the opening. In the structure, an equivalent impedance circuit, formed with a rim of the opening and a cross-section of the rim of the door to prevent leakage of microwave out of the cavity, is a LC resonant circuit.
    Type: Application
    Filed: July 31, 2002
    Publication date: July 31, 2003
    Applicant: LG ELECTRONICS INC.
    Inventors: Young-Min Lee, Yang-Kyeong Kim, Jong-Kwan Ryu