Patents by Inventor Akinori Tanno

Akinori Tanno 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).

  • Lubrication pressure controller
    Patent number: 6244385
    Abstract: A lubrication pressure controller comprises a lubrication pressure regulating valve 41, which is provided in a lubrication oil passage 36 directing hydraulic oil to lubricated parts, and a cooler pressure regulating valve 42, which is provided in a discharge oil passage 51b of the lubrication pressure regulating valve 41. The lubrication pressure regulating valve 41 adjusts the pressure in the lubrication oil passage 36, and the cooler pressure regulating valve 42 adjusts the pressure supplied to an oil cooler 55. The hydraulic oil discharged from the cooler pressure regulating valve 42 is returned through a recirculation line 52 to a suction oil passage 31 of a pump. In this construction, an adequate supply of lubrication oil is maintained even if one of the valves experiences locking of a valve spool on an open side.
    Type: Grant
    Filed: August 5, 1999
    Date of Patent: June 12, 2001
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoshimichi Tsubata, Katsuyuki Narai, Eiji Suzuki, Daihei Teshima, Atsushi Fujikawa, Keiichi Hanyu, Masaaki Yamaguchi, Tomoyuki Kanda, Eiji Ohyama, Akinori Tanno