Patents by Inventor Kazutaka Yamaguchi

Kazutaka Yamaguchi 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).

  • Vehicle cooling fan control system and vehicle cooling fan control method
    Patent number: 8428817
    Abstract: Vehicle cooling fan control system and method which prevent an occupant from hearing peculiar sounds from a cooling fan due to a decrease in rotation speed are provided. The vehicle cooling fan control system according to the present invention is configured not to stop the rotation of a fan motor for a predetermined time even upon satisfaction of an air conditioner stoppage condition as long as a vehicle interior is quiet.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: April 23, 2013
    Assignee: Calsonic Kansei Corporation
    Inventors: Kazutaka Yamaguchi, Satoshi Kondo
  • VEHICLE COOLING FAN CONTROL SYSTEM AND VEHICLE COOLING FAN CONTROL METHOD
    Publication number: 20100191416
    Abstract: Vehicle cooling fan control system and method which prevent an occupant from hearing peculiar sounds from a cooling fan (1) due to a decrease in rotation speed are provided. The vehicle cooling fan control system according to the present invention is configured not to stop the rotation of a fan motor (2) for a predetermined time even upon satisfaction of an air conditioner stoppage condition as long as a vehicle interior is quiet.
    Type: Application
    Filed: December 13, 2007
    Publication date: July 29, 2010
    Inventors: Kazutaka Yamaguchi, Satoshi Kondo