Patents by Inventor Tetsuya Hida

Tetsuya Hida 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
  • Laminated metal gasket with diverse bead height
    Patent number: 5588657
    Abstract: A laminated metal gasket used as a cylinder head gasket for an internal combustion engine, disposed between a pair of joint surfaces having at least one hole to be sealed comprising at least one intermediate plate made of a metal plate, and a pair of surface plates made of elastic metal plates, such as steel plates or stainless steel plates, laminated on both sides of the intermediate plate, the intermediate plate and the surface plates each having at least one hole portion corresponding to the hole to be sealed, the intermediate plate being equipped with a folded portion which is made by folding back the inner peripheral edge portion around the hole portion to the joint surface subjected to more significant distortion and deformation during operation among the pair of joint surfaces, and the surface plates each being equipped with a bead surrounding the hole portion outside the folded portion, the bead of the surface plate coming into contact with the joint surface to be subjected to more significant distort
    Type: Grant
    Filed: October 3, 1995
    Date of Patent: December 31, 1996
    Assignee: Nippon Reinz Co., Ltd.
    Inventors: Katsuhide Fujisawa, Eiichi Tahara, Tetsuya Hida