Patents by Inventor Ryuji Yoshihara

Ryuji Yoshihara 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 apparatus with function for correcting for erroneous detection
    Patent number: 7394222
    Abstract: A power supply apparatus has a battery that is composed of a plurality of battery modules connected in series, a voltage detector that detects the relative voltages at the individual nodes between the battery modules with respect to a predetermined reference node, an erroneous detection checker that checks whether each of the detected relative voltages is an erroneously detected voltage and a normally detected voltage, and a calculation circuit that calculates the voltages of the individual battery modules based on those relative voltages that are judged to be normally detected voltages.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: July 1, 2008
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Eiichiro Hashimoto, Kimihiko Furukawa, Ryuji Yoshihara
  • Power supply apparatus
    Publication number: 20050225290
    Abstract: A power supply apparatus has a battery that is composed of a plurality of battery modules connected in series, a voltage detector that detects the relative voltages at the individual nodes between the battery modules with respect to a predetermined reference node, an erroneous detection checker that checks whether each of the detected relative voltages is an erroneously detected voltage and a normally detected voltage, and a calculation circuit that calculates the voltages of the individual battery modules based on those relative voltages that are judged to be normally detected voltages.
    Type: Application
    Filed: April 1, 2005
    Publication date: October 13, 2005
    Inventors: Eiichiro Hashimoto, Kimihiko Furukawa, Ryuji Yoshihara