Patents by Inventor Jingwan Ju

Jingwan Ju 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).

  • Power supply device using secondary battery and method of switching the battery mode
    Patent number: 9590443
    Abstract: The present invention employs more than two secondary batteries; most output of one battery is supplied to load, and rest output is used to charge another battery for improving the battery efficiency and prolong the battery usable time (discharge time). The object of the present invention is to provide a power supplying device and battery mode switching method by using the secondary battery cells.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: March 7, 2017
    Inventor: Jingwan Ju
  • Power Supply Device Using Secondary Battery and Method of Switching the Battery Mode
    Publication number: 20150002073
    Abstract: The present invention employs more than two secondary batteries; most output of one battery is supplied to load, and rest output is used to charge another battery for improving the battery efficiency and prolong the battery usable time (discharge time). The object of the present invention is to provide a power supplying device and battery mode switching method by using the secondary battery cells.
    Type: Application
    Filed: January 11, 2013
    Publication date: January 1, 2015
    Inventor: Jingwan Ju