Patents by Inventor Masufumi Kugai

Masufumi Kugai 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).

  • Gear case for motorcycle
    Patent number: 9822867
    Abstract: A motorcycle wherein only air can be communicated between the inside and the outside of a gear case without increasing the size of the gear case. A gear case includes a gear case body and a gear case cover. The gear case body includes a breather chamber of a labyrinth structure which continues in a circumferential direction of a rear wheel and extends in an upward and downward direction. An upper end of the breather chamber is in communication with a breather path and is open to atmospheric air while a lower end of the breather chamber is in communication with a gear chamber through a slit extending in a widthwise direction of the rear wheel.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: November 21, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Shinji Ito, Masufumi Kugai
  • MOTORCYCLE
    Publication number: 20100126306
    Abstract: A motorcycle wherein only air can be communicated between the inside and the outside of a gear case without increasing the size of the gear case. A gear case includes a gear case body and a gear case cover. The gear case body includes a breather chamber of a labyrinth structure which continues in a circumferential direction of a rear wheel and extends in an upward and downward direction. An upper end of the breather chamber is in communication with a breather path and is open to atmospheric air while a lower end of the breather chamber is in communication with a gear chamber through a slit extending in a widthwise direction of the rear wheel.
    Type: Application
    Filed: September 30, 2009
    Publication date: May 27, 2010
    Inventors: Shinji ITO, Masufumi Kugai