Patents by Inventor Kenichi KASAl

Kenichi KASAl 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).

  • CIRCUIT AND METHOD FOR DETERMINING INTERNAL SHORT-CIRCUIT, BATTERY PACK, AND PORTABLE DEVICE
    Publication number: 20140184235
    Abstract: An internal short-circuit determination circuit includes a current detecting unit, a voltage detecting unit, a short detecting unit, and first and second acquiring units. The first acquiring unit acquires first and second capacity values based on first and second voltage values. The second acquiring unit acquires a third capacity value based on a current flowing in a battery unit during a predetermined period. The short detecting unit computes a fourth capacity value by subtracting at least the second and third capacity values from the first capacity value. The short detecting unit determines whether an internal short-circuit has occurred in the battery unit based on the fourth capacity value.
    Type: Application
    Filed: March 4, 2014
    Publication date: July 3, 2014
    Applicant: MITSUMI ELECTRIC CO., LTD.
    Inventors: Akira IKEUCHI, Yoshihide MAJIMA, Itsuki NAKANO, Kenichi KASAl