Patents by Inventor Go Itohiya

Go Itohiya 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).

  • Fiber reinforced plastic pipe and power transmission shaft employing the same
    Patent number: 8118064
    Abstract: A fiber reinforced plastic pipe is provided to prevent it from being damaged and make full use of its practical performance when the fiber reinforced plastic pipe, reduced in thickness and increased in diameter by pultrusion process, is reduced in the circumferential direction and inserted into a metal pipe. The fiber reinforced plastic pipe, reduced in thickness and increased in diameter by pultrusion process, includes a fiber bundle spun and aligned in the longitudinal direction, and circumferential reinforced fiber sheet provided at least on one of the outer and inner surface layers. The circumferential reinforced fiber sheet is inserted into the metal pipe to form a power transmission shaft such as an intermediate shaft for use with a propeller shaft or a drive shaft.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: February 21, 2012
    Assignees: NTN Corporation, Asahi Glass Matex Co., Ltd., Mitsubishi Rayon Co., Ltd.
    Inventors: Tatsuo Nakajima, Arito Matsui, Takashi Nishimoto, Go Itohiya, Hajime Asai, Tsuneo Takano
  • Fiber reinforced plastic pipe and power transmission shaft employing the same
    Publication number: 20020117228
    Abstract: A fiber reinforced plastic pipe is provided to prevent it from being damaged and make full use of its practical performance when the fiber reinforced plastic pipe, reduced in thickness and increased in diameter by pultrusion process, is reduced in the circumferential direction and inserted into a metal pipe. The fiber reinforced plastic pipe, reduced in thickness and increased in diameter by pultrusion process, includes a fiber bundle spun and aligned in the longitudinal direction, and circumferential reinforced fiber sheet provided at least on one of the outer and inner surface layers. The circumferential reinforced fiber sheet is inserted into the metal pipe to form a power transmission shaft such as an intermediate shaft for use with a propeller shaft or a drive shaft.
    Type: Application
    Filed: January 29, 2002
    Publication date: August 29, 2002
    Inventors: Tatsuo Nakajima, Arito Matsui, Takashi Nishimoto, Go Itohiya, Hajime Asai, Tsuneo Takano