Patents by Inventor Megumu Uda

Megumu Uda 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).

  • Vehicular brake hydraulic pressure controller
    Patent number: 7784883
    Abstract: A vehicular brake hydraulic pressure controller has a reference hydraulic pressure acquisition section 21a for acquiring hydraulic pressure achieved on the other side of an electromagnetic valve as reference hydraulic pressure, a differential pressure calculation section 21b for calculating a differential pressure Py by subtracting previously-estimated hydraulic pressure achieved on one side of the electromagnetic valve from the reference hydraulic pressure; a pressure gradient coefficient calculation section 21c for acquiring a pressure gradient coefficient K correlating with a drive current of the electromagnetic valve and the differential pressure Py, and an estimated hydraulic pressure calculation section 21e for estimating current hydraulic pressure by adding a product, which has been produced by multiplying the differential pressure Py by the pressure gradient coefficient K, to the previously-estimated hydraulic pressure achieved on one side of the electromagnetic valve.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: August 31, 2010
    Assignee: Nissin Kogyo Co., Ltd.
    Inventors: Nobuyuki Nomura, Megumu Uda
  • VEHICULAR BRAKE HYDRAULIC PRESSURE CONTROLLER
    Publication number: 20070284935
    Abstract: A vehicular brake hydraulic pressure controller has a reference hydraulic pressure acquisition section 21a for acquiring hydraulic pressure achieved on the other side of an electromagnetic valve as reference hydraulic pressure, a differential pressure calculation section 21b for calculating a differential pressure Py by subtracting previously-estimated hydraulic pressure achieved on one side of the electromagnetic valve from the reference hydraulic pressure; a pressure gradient coefficient calculation section 21c for acquiring a pressure gradient coefficient K correlating with a drive current of the electromagnetic valve and the differential pressure Py, and an estimated hydraulic pressure calculation section 21e for estimating current hydraulic pressure by adding a product, which has been produced by multiplying the differential pressure Py by the pressure gradient coefficient K, to the previously-estimated hydraulic pressure achieved on one side of the electromagnetic valve.
    Type: Application
    Filed: June 11, 2007
    Publication date: December 13, 2007
    Applicant: NISSIN KOGYO CO., LTD.
    Inventors: Nobuyuki NOMURA, Megumu UDA