Patents by Inventor Kizuki Hagiwara

Kizuki Hagiwara 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).

  • Fan Drive Controlling Device and Construction Machine
    Publication number: 20110011356
    Abstract: A fan drive control device includes: a hydraulic motor driving a cooling fan by a hydraulic oil supplied from a hydraulic pump driven by an engine; a flow rate adjuster adjusting a flow rate of the hydraulic oil flowed into the hydraulic motor; a temperature sensor detecting a temperature of a fluid cooled by a cooling fan; an accelerator pedal angle sensor detecting an accelerator pedal angle for controlling an engine power based on a detected value by the temperature sensor; a target flow rate setting unit setting a target flow rate of the hydraulic oil flowed into the hydraulic motor; a target flow rate compensation unit compensating the target flow rate based on a detected value by the accelerator pedal angle sensor; and a control command generator generating a control command to the flow rate adjuster according to the target flow rate by the target flow rate compensation unit.
    Type: Application
    Filed: March 18, 2009
    Publication date: January 20, 2011
    Applicant: KOMATSU LTD.
    Inventors: Satoshi Tanaka, Kizuki Hagiwara