Patents by Inventor Tohru Wanibuchi

Tohru Wanibuchi 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).

  • Patent number: 7619389
    Abstract: A charge circuit 6 supplies a charging voltage (Vc) or a charging current to a secondary battery 2, 24 to 26 used for driving an appliance 21; a charged level setting device 5, Sc1 causes the charge circuit 6 to charge the secondary battery 2, 24 to 26 to a predetermined charged level, and detection means 12 detects a charged level of the secondary battery 2; a discharge section 21, 5, Sc1 discharges the secondary battery 2; and control means operates the charge circuit 6 when the predetermined charged level is higher than the detected charged level, and discharges the secondary battery by the discharge section 21, 5, Sc1 when the predetermined charged level is lower than the detected charged level Thus, it is possible to provide a charge control device capable of extending a cycle life of a secondary battery.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: November 17, 2009
    Assignee: Panasonic Corporation
    Inventor: Tohru Wanibuchi
  • Publication number: 20060238166
    Abstract: A charge circuit 6 supplies a charging voltage (Vc) or a charging current to a secondary battery 2, 24 to 26 used for driving an appliance 21; a charged level setting device 5, Sc1 causes the charge circuit 6 to charge the secondary battery 2, 24 to 26 to a predetermined charged level, and detection means 12 detects a charged level of the secondary battery 2; a discharge section 21, 5, Sc1 discharges the secondary battery 2; and control means operates the charge circuit 6 when the predetermined charged level is higher than the detected charged level, and discharges the secondary battery by the discharge section 21, 5, Sc1 when the predetermined charged level is lower than the detected charged level Thus, it is possible to provide a charge control device capable of extending a cycle life of a secondary battery.
    Type: Application
    Filed: November 10, 2005
    Publication date: October 26, 2006
    Inventor: Tohru Wanibuchi