Patents by Inventor Hiroji Fukuoka

Hiroji Fukuoka 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).

  • Electric assisted bicycle
    Patent number: 7040440
    Abstract: An electric assisted bicycle of simple structure is provided which is superior in the stability, reliability, and certainty of operation, and is provided with an electric power regenerative function and a brake assist function. A pedal force transmitted from a crank shaft is transmitted to an axle shaft via first transmission means, and the output of a motor as an assistant motive power is transmitted to the axle shaft via a clutch unit, which can switch a lock direction in conjunction with brake operation by a cyclist, and second transmission means.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: May 9, 2006
    Assignee: NTN Corporation
    Inventors: Masahiro Kurita, Hiroji Fukuoka, Naoki Obita
  • Electric assisted bicycle
    Publication number: 20040231905
    Abstract: An electric assisted bicycle of simple structure is provided which is superior in the stability, reliability, and certainty of operation, and is provided with an electric power regenerative function and a brake assist function. A pedal force transmitted from a crank shaft is transmitted to an axle shaft via first transmission means, and the output of a motor as an assistant motive power is transmitted to the axle shaft via a clutch unit, which can switch a lock direction in conjunction with brake operation by a cyclist, and second transmission means.
    Type: Application
    Filed: March 11, 2004
    Publication date: November 25, 2004
    Inventors: Masahiro Kurita, Hiroji Fukuoka, Naoki Obita