Patents by Inventor Keiichi Nagaseki

Keiichi Nagaseki 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).

  • Hydraulic pressure control apparatus
    Patent number: 9488268
    Abstract: A hydraulic pressure control apparatus includes a first pressure regulating valve for reducing an initial oil pressure (line pressure) of a working oil, a solenoid-operated valve for converting the oil pressure, which has been reduced in pressure, into a solenoid pressure, and a second pressure regulating valve for converting the line pressure of the working oil into an actuating pressure responsive to the solenoid pressure. The three valves share a single body. Further, an outlet passageway is formed along a thicknesswise direction of the body, with a relief valve being formed upwardly of the outlet passageway.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: November 8, 2016
    Assignees: KEIHIN CORPORATION, FUJI HEAVY INDUSTRIES LTD.
    Inventors: Kouichi Yamada, Keiichi Nagaseki, Kenji Suda, Tomotaka Terajima, Susumu Ito
  • HYDRAULIC PRESSURE CONTROL APPARATUS
    Publication number: 20140352816
    Abstract: A hydraulic pressure control apparatus includes a first pressure regulating valve for reducing an initial oil pressure (line pressure) of a working oil, a solenoid-operated valve for converting the oil pressure, which has been reduced in pressure, into a solenoid pressure, and a second pressure regulating valve for converting the line pressure of the working oil into an actuating pressure responsive to the solenoid pressure. The three valves share a single body. Further, an outlet passageway is formed along a thicknesswise direction of the body, with a relief valve being formed upwardly of the outlet passageway.
    Type: Application
    Filed: May 29, 2014
    Publication date: December 4, 2014
    Applicants: KEIHIN CORPORATION, Fuji Heavy Industries Ltd.
    Inventors: Kouichi Yamada, Keiichi Nagaseki, Kenji Suda, Tomotaka Terajima, Susumu Ito