Patents by Inventor Yuuichirou Sawada

Yuuichirou Sawada 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: 6845313
    Abstract: There is provided an engine start control method and an engine start control apparatus which can judge cell starting and kick starting with a simple constitution to perform optimum engine start according the respective starting. The engine start control method and the engine start control apparatus have a cell starting program at the time when an engine is started by a cell motor and a human power starting program at the time when the engine is started by a human power, detect a difference between a battery voltage at the time of engine stop and a battery voltage at the time of commencement of engine start, and starts the engine in accordance with the cell starting program if this difference is larger than a predetermined value and starts the engine in accordance with the human power starting program if the difference is smaller than the predetermined value.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: January 18, 2005
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Hitoshi Hasegawa, Yuuichirou Sawada, Michiyasu Takahashi