Patents by Inventor Kohei Suseki

Kohei Suseki 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).

  • Thermal air flowmeter
    Patent number: 7882735
    Abstract: An object of the invention is to provide a thermal air flowmeter which can reduce a detection error occurring during pulsating air flow due to a difference of response between rising and falling of detected flow or due to air flow dependence of response. A thermal air flowmeter 1 includes a heat-generating resistor 7 which heats liquid, a heating drive circuit 5 which causes current to flow in the heat-generating resistor 7 and thereby controls heating of the heat-generating resistor 7, and a temperature-sensitive resistor 9 which detects a temperature of the fluid heated by the heat-generating resistor 7. The thermal air flowmeter 1 detects a flow Q of the liquid based on the amount of heat of the liquid heated by the heat-generating resistor 7.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: February 8, 2011
    Assignee: Hitachi Automotive Systems, Ltd.
    Inventors: Keiji Hanzawa, Yoshihiko Akagi, Takuto Okamoto, Kohei Suseki, Takeshi Morino
  • Thermal Air Flowmeter
    Publication number: 20100275685
    Abstract: An object of the invention is to provide a thermal air flowmeter which can reduce a detection error occurring during pulsating air flow due to a difference of response between rising and falling of detected flow or due to air flow dependence of response. A thermal air flowmeter 1 includes a heat-generating resistor 7 which heats liquid, a heating drive circuit 5 which causes current to flow in the heat-generating resistor 7 and thereby controls heating of the heat-generating resistor 7, and a temperature-sensitive resistor 9 which detects a temperature of the fluid heated by the heat-generating resistor 7. The thermal air flowmeter 1 detects a flow Q of the liquid based on the amount of heat of the liquid heated by the heat-generating resistor 7.
    Type: Application
    Filed: April 28, 2010
    Publication date: November 4, 2010
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Keiji HANZAWA, Yoshihiko Akagi, Takuto Okamoto, Kohei Suseki, Takeshi Morino