Patents by Inventor Kim Dohyung

Kim Dohyung 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).

  • Patent number: 7488909
    Abstract: A lighted switch apparatus includes a casing (upper case) that has an opening; an operating part that is movable and has at least a pair of indicators; and a light source that is disposed in the casing (the upper case and a lower case). In this case, the operating knob includes a shaft portion (light-guiding member) composed of a light-guiding member having one end, which is inserted into the opening of the casing to be positioned in the casing and is disposed to face the light source, a knob light guiding part (operating part) having reflecting portions that are provided below the indicators of the operating part and reflects light from the other end of the shaft portion positioned outside of the casing to the indicators, and second reflecting portions that reflect and lead the light from the other end of the shaft portion to the knob light guiding part.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: February 10, 2009
    Assignee: Alps Electric Co., Ltd.
    Inventors: Fumito Kajiwara, Kim Dohyung
  • Publication number: 20060102456
    Abstract: A lighted switch apparatus includes a casing (upper case) that has an opening; an operating part that is movable and has at least a pair of indicators; and a light source that is disposed in the casing (the upper case and a lower case). In this case, the operating knob includes a shaft portion (light-guiding member) composed of a light-guiding member having one end, which is inserted into the opening of the casing to be positioned in the casing and is disposed to face the light source, a knob light guiding part (operating part) having reflecting portions that are provided below the indicators of the operating part and reflects light from the other end of the shaft portion positioned outside of the casing to the indicators, and second reflecting portions that reflect and lead the light from the other end of the shaft portion to the knob light guiding part.
    Type: Application
    Filed: November 2, 2005
    Publication date: May 18, 2006
    Inventors: Fumito Kajiwara, Kim Dohyung