Patents by Inventor Whan H. Cho

Whan H. Cho 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).

  • Apparatus for adjusting the cooking time and power output of a microwave oven
    Patent number: 5558796
    Abstract: A microwave oven has a cooking time selecting unit and a cooking power selecting unit. The cooking time selecting unit has a first shaft which extends through a control panel and a first knob is mounted on the first shaft. The cooking power selecting unit has a second shaft which is disposed parallel to the first shaft and extends through the control panel. A second knob is mounted on the first shaft and has an outwardly open recess in which the first knob is freely rotatably disposed. A rotary power transmitter such as an idler gear or a timing belt interconnects the second knob and second shaft.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: September 24, 1996
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Whan H. Cho