Patents by Inventor Ji-Chul Ryu

Ji-Chul Ryu 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).

  • Intelligent powered mobility for infants and special needs children
    Patent number: 8090488
    Abstract: A powered mobility device for advancing cognitive, perceptual and motor abilities of a child lacking natural mobility is disclosed. The device includes a seat sized for the child to be secured therein and a motorized drive assembly coupled to the seat. A local operating instrument is operably coupled to the drive assembly for operating and steering the drive assembly. The local operating instrument is positioned to allow manipulation by the child seated in the seat. A processor is operatively coupled to the motorized drive assembly and to a local steering instrument. The processor is adapted to transmit a signal to the motorized drive assembly and the local steering instrument to control the mobility device. A method for advancing cognitive, perceptual and motor abilities of a child by using the device is also disclosed.
    Type: Grant
    Filed: October 3, 2008
    Date of Patent: January 3, 2012
    Inventors: Sunil K. Agrawal, James C. Galloway, Ji-Chul Ryu
  • INTELLIGENT POWERED MOBILITY FOR INFANTS AND SPECIAL NEEDS CHILDREN
    Publication number: 20090132124
    Abstract: A powered mobility device for advancing cognitive, perceptual and motor abilities of a child lacking natural mobility is disclosed. The device includes a seat sized for the child to be secured therein and a motorized drive assembly coupled to the seat. A local operating instrument is operably coupled to the drive assembly for operating and steering the drive assembly. The local operating instrument is positioned to allow manipulation by the child seated in the seat. A processor is operatively coupled to the motorized drive assembly and to a local steering instrument. The processor is adapted to transmit a signal to the motorized drive assembly and the local steering instrument to control the mobility device. A method for advancing cognitive, perceptual and motor abilities of a child by using the device is also disclosed.
    Type: Application
    Filed: October 3, 2008
    Publication date: May 21, 2009
    Applicant: University of Delaware
    Inventors: Sunil K. Agrawal, James C. Galloway, Ji-Chul Ryu