Patents by Inventor Sunao HIROTA

Sunao HIROTA 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).

  • Cooling fan device for vehicle
    Patent number: 9810135
    Abstract: This cooling fan device for a vehicle comprises: a fan shroud which is shaped as a box accommodating a radiator and/or a condenser, and which has an opening in the front side in the travel direction of the vehicle and a fan coupling surface in the rear side in the travel direction; at least two cooling fans disposed in the fan coupling surface, the cooling fans having center axes vertically separated from each other by a predetermined distance; and a shield rib extending downward from the top of the fan coupling surface, protruding toward the radiator and/or the condenser, and having a top end and a bottom end, the shield rib being provided to the fan coupling surface between the adjacent cooling fans. The top end and/or the bottom end of the shield rib have a cutout section allowing air to pass between the adjacent cooling fans.
    Type: Grant
    Filed: November 19, 2013
    Date of Patent: November 7, 2017
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Eiji Ishikawa, Tsuyoshi Seike, Yusuke Hoshikawa, Sunao Hirota
  • COOLING FAN DEVICE FOR VEHICLE
    Publication number: 20150300238
    Abstract: This cooling fan device for a vehicle comprises: a fan shroud which is shaped as a box accommodating a radiator and/or a condenser, and which has an opening in the front side in the travel direction of the vehicle and a fan coupling surface in the rear side in the travel direction; at least two cooling fans disposed in the fan coupling surface, the cooling fans having center axes vertically separated from each other by a predetermined distance; and a shield rib extending downward from the top of the fan coupling surface, protruding toward the radiator and/or the condenser, and having a top end and a bottom end, the shield rib being provided to the fan coupling surface between the adjacent cooling fans. The top end and/or the bottom end of the shield rib have a cutout section allowing air to pass between the adjacent cooling fans.
    Type: Application
    Filed: November 19, 2013
    Publication date: October 22, 2015
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Eiji ISHIKAWA, Tsuyoshi SEIKE, Yusuke HOSHIKAWA, Sunao HIROTA