Patents Assigned to Yonwoo Corporation
  • Patent number: 6375045
    Abstract: The invention relates to an airless type dispenser. According to an aspect of the invention, there is provided with an airless type dispenser comprising a receptacle 11, a piston 18 inserted in the receptacle 11, a dispenser cap 12 which is coupled to the opening of the upper end of the receptacle 11 and includes a pump 14, a button 15 and a nozzle 16 wherein, on the upper surface of the piston 18, a material which has lower expansibility than the piston 18 is laminated.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: April 23, 2002
    Assignee: Yonwoo Corporation
    Inventor: Jung Hyun Ki
  • Patent number: 6354308
    Abstract: A cosmetic container having an airtight structure in which dryness or deterioration of the substance can be avoided is provided. According to an aspect of the present invention, there is provided with a cosmetic container comprising a lower case and an upper case hinged to the side of the lower case, wherein an inner container is provided in the lower case and substance is filled in the inner container, and an inner cover formed with elastic material is provided at the inner surface of the upper case, so that airtightness of the container can be maintained, as the edge of the inner cover is deformed elastically and contacts closely to the periphery of the inner container when the upper and lower cases are closed.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: March 12, 2002
    Assignee: Yonwoo Corporation
    Inventor: Eui Ho Kuk