Patents by Inventor Minakami Yumi

Minakami Yumi 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).

  • Doze-off warning apparatus for vehicle
    Patent number: 7868771
    Abstract: The present invention provides a doze-off warning apparatus for a vehicle, comprising: a sensor measuring a driver's eye-open time (to) and an eye-closure time (tc); a doze-off driving determination part determining degree of danger based on the measured eye-open time (to) and the eye-closure time (tc) and comparing the determined degree of danger with a predetermined threshold (Kt); and an alarm part providing a warning signal with the driver when the degree of danger exceeds the predetermined threshold (Kt).
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: January 11, 2011
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hyudai Motor Japan R&D Center, Inc.
    Inventors: Kiichi Yamada, Minakami Yumi