Patents by Inventor Hak Seok Yu

Hak Seok Yu 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: 7164106
    Abstract: A toaster-cum-microwave oven includes a toasting chamber, a heating device, a humidity measuring device for measuring an inside humidity of the toasting chamber and producing a humidity signal indicating the measured inside humidity, a switching device for selectively cutting or allowing a power supply to the heating device, and a controlling device. The controlling device receives the humidity signal, calculates a rate of change of humidity using the humidity signal, compares the rate of change of humidity with a predetermined value, and controls the switching device to cut the power supply to the heating device after a remaining cooking time has lapsed if the rate of change of humidity is equal to or greater than the predetermined value.
    Type: Grant
    Filed: November 15, 2005
    Date of Patent: January 16, 2007
    Assignee: Daewoo Electronics Corporation
    Inventors: Hak Seok Yu, Seung Hoe Kim
  • Publication number: 20040262300
    Abstract: A toaster-cum-microwave oven includes a toasting chamber, a heating device, a temperature measuring device for measuring an inside temperature of the toasting chamber and producing a temperature signal indicating the measured inside temperature, a switching device for selectively cutting or allowing a power supply to the heating device, and a controlling device. The controlling device receives the temperature signal, determines an amount of heat required to cook the bread product, calculates an amount of heat supplied to the bread product by using the inside temperature of the toasting chamber, compares the supplied amount of heat with the required amount of heat, and controls the switching device to cut the power supply to the heating device if the supplied amount of heat is equal to or greater than the required amount of heat.
    Type: Application
    Filed: June 28, 2004
    Publication date: December 30, 2004
    Applicant: DAEWOO ELECTRONICS Corporation
    Inventors: Hak Seok Yu, Seung Hoe Kim
  • Patent number: 5877479
    Abstract: A microwave oven equipped with a microwave stirrer. The oven has a magnetron for generating a microwave, a tray for rotating a foodstuff, a stirrer for uniformly dispersing the microwave into a chamber, and a driving device for simultaneously driving the tray and the stirrer. As a driving device, a motor and a gear section are provided so that the driving device drives both the tray having rollers and stirring plates for stirring the microwave. The oven stirs the microwave so that the microwave is uniformly dispersed in a chamber, thereby uniformly heating the foodstuff.
    Type: Grant
    Filed: December 22, 1997
    Date of Patent: March 2, 1999
    Assignee: Daewoo Electronics Co., Ltd.
    Inventor: Hak-Seok Yu