Patents by Inventor An-Yoil Yen

An-Yoil Yen 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).

  • Hand-held electric appliance power-saving switch control mechanism
    Patent number: 6617711
    Abstract: A power-saving switch control mechanism for hand-held electric appliance comprises a sensor to detect the approaching hand of user and then continuously transmit signals to activate a switch into a close-circuit status in order for a cell to supply power to a control circuit of the electric appliance. When the sensor fails to detect the hand on the electric appliance, the switch returns to an open-circuit status to stop the cell from supplying power to the control circuit and stop the operation of the electric appliance accordingly.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: September 9, 2003
    Assignees: W-Link System, Inc.
    Inventors: Shuo-Hung Chang, An-Yoil Yen
  • Hand-held electric appliance power-saving switch control mechanism
    Publication number: 20020063477
    Abstract: A power-saving switch control mechanism for hand-held electric appliance comprises a sensor to detect the approaching hand of user and then continuously transmit signals to activate a switch into a close-circuit status in order for a cell to supply power to a control circuit of the electric appliance. When the sensor fails to detect the hand on the electric appliance, the switch returns to an open-circuit status to stop the cell from supplying power to the control circuit and stop the operation of the electric appliance accordingly.
    Type: Application
    Filed: October 31, 2001
    Publication date: May 30, 2002
    Inventors: Shuo-Hung Chang, An-Yoil Yen