Patents by Inventor Munehiro Kawai

Munehiro Kawai 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).

  • Sun roof drive device
    Patent number: 7453222
    Abstract: The sun roof drive device opens and closes a vehicle sun roof by a DC brushless motor, which is driven by rectangular waves when high torque is required at a low rotational speed and which is driven by sinusoidal waves or pseudo-sinusoidal waves when low noise is required.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: November 18, 2008
    Assignees: Shinano Kenshi Kabushiki Kaisha, Yachiyo Kogyo Kabushiki Kaisha
    Inventors: Takashi Kanai, Takahiro Maruyama, Yutaka Nagai, Munehiro Kawai, Yoshikazu Ito
  • Sun roof drive device
    Publication number: 20070182218
    Abstract: The sun roof drive device opens and closes a vehicle sun roof by a DC brushless motor, which is driven by rectangular waves when high torque is required at a low rotational speed and which is driven by sinusoidal waves or pseudo-sinusoidal waves when low noise is required.
    Type: Application
    Filed: February 4, 2005
    Publication date: August 9, 2007
    Inventors: Takashi Kanai, Takahiro Maruyama, Yutaka Nagai, Munehiro Kawai, Yoshikazu Ito