Patents by Inventor Koroku Ishida

Koroku Ishida 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).

  • Onboard battery management device
    Patent number: 7898263
    Abstract: A battery management device is provided for accurately measuring in a simple manner the internal resistance (reciprocal of conductance) of a battery that serves as the determination reference of the deterioration level of a battery without the application of an AC voltage to the battery while the battery remains onboard, and determining and displaying the deterioration level of the onboard battery.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: March 1, 2011
    Assignee: PCN Corporation
    Inventors: Koroku Ishida, Sumio Homma, Shigeki Homma, legal representative, Toshiko Homma, legal representative, Futao Kaneko, Takahiro Kawakami
  • Onboard Battery Management Device
    Publication number: 20090051364
    Abstract: A battery management device is provided for accurately measuring in a simple manner the internal resistance (reciprocal of conductance) of a battery that serves as the determination reference of the deterioration level of a battery without the application of an AC voltage to the battery while the battery remains onboard, and determining and displaying the deterioration level of the onboard battery.
    Type: Application
    Filed: March 28, 2006
    Publication date: February 26, 2009
    Applicant: PCN CORPORATIOAN
    Inventors: Koroku Ishida, Sumio Homma, Shigeki Homma, Toshiko Homma, Futao Kaneko, Takahiro Kawakami