Patents by Inventor Tsutomu Endou

Tsutomu Endou 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).

  • Cylinder head gasket and engine
    Patent number: 8042815
    Abstract: The thickness of an intermediate plate portion (31b) is smaller than the thickness of a stopper portion (31a). The thickness of a portion of a cylinder head gasket (20) having the stopper portion (31a) is set to be greater than the thickness of other portions of the cylinder head gasket (20). Before the cylinder head gasket (20) is provided between contact surfaces (12a, 13a), a space (S) is formed between the stopper portion (31a) and an adjustment stopper portion (32a), and the intermediate plate portion (31b) partially contacts the adjustment plate portion, and a bead (33a) contacts the adjustment plate portion (32b).
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: October 25, 2011
    Assignees: Kabushiki Kaisha Toyota Jidoshokki, Toyota Jidosha Kabushiki Kaisha, Nippon Reinz Co., Ltd.
    Inventors: Yoshihiro Okuno, Kazuya Yoshijima, Tsutomu Endou, Tetsuya Hida
  • CYLINDER HEAD GASKET AND ENGINE
    Publication number: 20100117306
    Abstract: The thickness of an intermediate plate portion (31b) is smaller than the thickness of a stopper portion (31a). The thickness of a portion of a cylinder head gasket (20) having the stopper portion (31a) is set to be greater than the thickness of other portions of the cylinder head gasket (20). Before the cylinder head gasket (20) is provided between contact surfaces (12a, 13a), a space (S) is formed between the stopper portion (31a) and an adjustment stopper portion (32a), and the intermediate plate portion (31b) partially contacts the adjustment plate portion, and a bead (33a) contacts the adjustment plate portion (32b).
    Type: Application
    Filed: January 31, 2008
    Publication date: May 13, 2010
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA, NIPPON REINZ CO., LTD.
    Inventors: Yoshihiro Okuno, Kazuya Yoshijima, Tsutomu Endou, Tetsuya Hida