Patents by Inventor Tomoki Hitani

Tomoki Hitani 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).

  • Damper
    Patent number: 5072813
    Abstract: A damper includes a cylinder, a partition member for partitioning the interior of the cylinder into two liquid chambers, an orifice for generating a damping force by flow of liquid, and a bypass path affording communication between the two liquid chambers. The damper further includes a mass body attached to the partition member that is movable in an axial direction of the cylinder and biased to close the bypass path. The speed of the mass body when opening the bypass path is faster than the speed of the mass body when closing the bypass path.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: December 17, 1991
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Yoshioka, Yukio Yamamoto, Osamu Ogawa, Fujio Nakayama, Tomoki Hitani, Ryuichi Kurosawa