Patents by Inventor Kazushige Gotou

Kazushige Gotou 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).

  • Rocker arm
    Patent number: 7000582
    Abstract: The rocker arm 1 has a fitting surface 6 on the opposite sides of which guide surfaces 21 are formed, such that the guide surfaces 21 are inclined to be closer to each other toward their tip ends. Even when the valve stem 20 is displaced in the widthwise direction of the fitting surface 6, the outer peripheral surface of the base end portion of the valve stem 20 comes into contact with only the tip end of one of the guide surfaces 21. Consequently, lubrication is improved and friction moment is decreased in the contact area, so that friction resistance is suppressed between the guide surfaces 21 and the outer peripheral surface of the base end of the valve stem 20 to easily obtain high performance of the engine.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: February 21, 2006
    Assignee: NSK Ltd.
    Inventors: Noriyuki Takeo, Kazushige Gotou, Satoshi Kadokawa
  • Rocker arm
    Publication number: 20050034696
    Abstract: The rocker arm 1 has a fitting surface 6 on the opposite sides of which guide surfaces 21 are formed, such that the guide surfaces 21 are inclined to be closer to each other toward their tip ends. Even when the valve stem 20 is displaced in the widthwise direction of the fitting surface 6, the outer peripheral surface of the base end portion of the valve stem 20 comes into contact with only the tip end of one of the guide surfaces 21. Consequently, lubrication is improved and friction moment is decreased in the contact area, so that friction resistance is suppressed between the guide surfaces 21 and the outer peripheral surface of the base end of the valve stem 20 to easily obtain high performance of the engine.
    Type: Application
    Filed: October 3, 2002
    Publication date: February 17, 2005
    Inventors: Noriyuki Takeo, Kazushige Gotou, Satoshi Kadokawa