Patents by Inventor Yoshiyasu Sakakibara

Yoshiyasu Sakakibara 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).

  • Engine cooling system control apparatus
    Patent number: 4475485
    Abstract: A cooling system control apparatus includes an electronic control unit to individually control the operation of an engine water pump, a radiator fan motor and an electromagnetic valve for bypassing the cooling water passage to the radiator, on the basis of a cooling water temperature. When the cooling water temperature is below about 85.degree. C., the water pump is stopped to raise the cooling water temperature rapidly, and when the cooling water temperature is above about 85.degree. C., the water pump is operated and the electromagnetic valve is operated to bypass the cooling water passage to the radiator, and when the cooling water temperature is above about 90.degree. C., the fan motor is operated and also the electromagnetic valve is operated to allow the cooling water to pass through the radiator.
    Type: Grant
    Filed: January 11, 1983
    Date of Patent: October 9, 1984
    Assignee: Nippondenso Co., Ltd.
    Inventors: Yoshiyasu Sakakibara, Keiichi Fukumura