Patents by Inventor Koya Suzuki

Koya Suzuki 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).

  • Propeller shaft and method for producing the same
    Patent number: 6692365
    Abstract: A propeller shaft 1 comprising a shaft main body 10 and a yoke 20 which is mounted to the shaft main body 10 with a serrated inserting portion 21 thereof being press fitted into an inner circumferential surface of the shaft main body 10 is constructed such that serration fit-in grooves 11 having extending portions 11b into which serration teeth 22 travel when the yoke 20 is allowed to sink into the shaft main body 10 are formed in advance in the inner circumferential surface of the shaft main body 10. A method for producing the propeller shaft 1 comprises a yoke press fitting step and a yoke withdrawing step that is to be performed after the former step.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: February 17, 2004
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Koya Suzuki, Toshiro Kondo, Yasuki Miyashita, Yoshiharu Yasui
  • Fiber reinforced plastic propeller shaft
    Publication number: 20030157988
    Abstract: A fiber reinforced plastic propeller shaft has a fiber reinforced plastic pipe, and at least one metal member attached to an end of the pipe. The metal member is provided with a serration having a plurality of teeth having an apex angle. When the metal member is attached to the end of the pipe, each tooth forms on the inner surface of the pipe end a groove extending along the axial direction of the pipe. The apex angle of each tooth is between 45° and 75°.
    Type: Application
    Filed: February 12, 2003
    Publication date: August 21, 2003
    Inventors: Yasunori Nonogaki, Koya Suzuki
  • Joining structure for two members, and propeller shaft
    Publication number: 20020041790
    Abstract: A step portion is provided between a serration portion of a metal-made yoke and a leading end portion thereof. During pressure insertion and joining, an FRP-made cylinder is pressure-inserted to the serration portion in a state that the circularity is enhanced by the step portion. Consequently, the pressure insertion and joining is carried out while making the depth of cut grooves uniform, thereby enhancing concentricity (joining accuracy).
    Type: Application
    Filed: October 6, 2001
    Publication date: April 11, 2002
    Inventors: Koya Suzuki, Yasuki Miyashita, Yoshiharu Yasui, Masaaki Amano, Toshiro Kondo, Junji Takeuchi, Yasunori Nonogaki
  • Propeller shaft and method for producing the same
    Publication number: 20020032065
    Abstract: A propeller shaft 1 comprising a shaft main body 10 and a yoke 20 which is mounted to the shaft main body 10 with a serrated inserting portion 21 thereof being press fitted into an inner circumferential surface of the shaft main body 10 is constructed such that serration fit-in grooves 11 having extending portions 11b into which serration teeth 22 travel when the yoke 20 is allowed to sink into the shaft main body 10 are formed in advance in the inner circumferential surface of the shaft main body 10. A method for producing the propeller shaft 1 comprises a yoke press fitting step and a yoke withdrawing step that is to be performed after the former step.
    Type: Application
    Filed: July 25, 2001
    Publication date: March 14, 2002
    Inventors: Koya Suzuki, Toshiro Kondo, Yasuki Miyashita, Yoshiharu Yasui