Patents Assigned to Techno-Frontier Ltd.
  • Patent number: 4872445
    Abstract: The present invention concerns an improved cooking utensil for keeping warm and cooking which comprises an inner vessel portion, an outer shell portion having an inside diameter larger than that of the inner vessel portion and a height as same as or longer than that of the inner vessel portion, said outer shell portion having a cylindrical shape, and a lid which closes an opening of the inner vessel portion, and a space portion being defined by said inner vessel portion and said outer shell portion, said inner vessel portion and said outer shell portion being combined or connected by a pair of hand grips.
    Type: Grant
    Filed: June 29, 1988
    Date of Patent: October 10, 1989
    Assignee: Techno-Frontier Ltd.
    Inventors: Hiroshi Kobayashi, Masae Kobayashi, Haruhiko Machida