Patents by Inventor Motohiro Mizuno, I

Motohiro Mizuno, I 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).

  • Tank and manufacturing method thereof
    Patent number: 9316359
    Abstract: There are disclosed a tank having a structure which achieves both a burst strength and a fatigue strength, and a manufacturing method of the tank. In order to realize this, in a tank comprising a liner, and an FRP layer including a hoop layer and a helical layer formed by winding fibers around the outer periphery of the liner, at least an innermost helical layer is formed as a smooth helical layer. When the smooth helical layer, i.e., a helical layer which does not have any unevenness or which has only little unevenness is formed, the unevenness can be prevented from being transferred to the hoop layer adjacent to the helical layer. When structural bends (undulations) of the fibers of the hoop layer are suppressed, a fatigue strength of the fibers themselves can be enhanced.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: April 19, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Riki Otsuka, Hirokazu Otsubo, Motohiro Mizuno, I, Takenori Aiyama, Satoshi Ohnuma, Nobuyuki Ogami
  • TANK AND MANUFACTURING METHOD THEREOF
    Publication number: 20120024745
    Abstract: There are disclosed a tank having a structure which achieves both a burst strength and a fatigue strength, and a manufacturing method of the tank. In order to realize this, in a tank comprising a liner, and an FRP layer including a hoop layer and a helical layer formed by winding fibers around the outer periphery of the liner, at least an innermost helical layer is formed as a smooth helical layer. When the smooth helical layer, i.e., a helical layer which does not have any unevenness or which has only little unevenness is formed, the unevenness can be prevented from being transferred to the hoop layer adjacent to the helical layer. When structural bends (undulations) of the fibers of the hoop layer are suppressed, a fatigue strength of the fibers themselves can be enhanced.
    Type: Application
    Filed: April 10, 2009
    Publication date: February 2, 2012
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Riki Otsuka, Hirokazu Otsubo, Motohiro Mizuno, I, Takenori Aiyama, Satoshi Ohnuma, Nobuyuki Ogami