Patents by Inventor Yasushi Goka

Yasushi Goka 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).

  • Apparatus for measuring flow amount
    Patent number: 6938473
    Abstract: An airflow meter has a membrane type sensor element. The sensor element is supported on a support member so that a sensing surface of the sensor element is in parallel to the airflow direction. The airflow meter has at least one means for protecting the sensor element from dust such as foreign particles. The protecting means is provided with an obstruction member that is disposed upstream or downstream of the sensor element with respect to the airflow direction. The sensor element is hidden behind the obstruction member. The obstruction member has gradually spreading surfaces and gradually converging surfaces along the airflow direction. Alternatively, the protecting means can be provided with a deflector, a cover member, a flow guide member, an inlet or a dust collector.
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: September 6, 2005
    Assignee: Denso Corporation
    Inventors: Takao Iwaki, Toshiyuki Morishita, Yasushi Kohno, Hiroyuki Wado, Yasushi Goka, Makoto Tsunekawa, Toshirou Gotou, Kiyoyuki Sugiura
  • Airflow meter
    Patent number: 6786089
    Abstract: An airflow meter has a member that defines a bypass passage. The bypass passage has a sensing passage in which a sensor tip is disposed. The sensing passage is restricted in at least a lateral direction that is a direction perpendicular to both a longitudinal direction of the sensing passage and a perpendicular direction perpendicular to the surface of the sensor tip. This arrangement defines relatively wider distance in the perpendicular direction on the sensor tip.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: September 7, 2004
    Assignee: Denso Corporation
    Inventors: Koichi Goto, Yukihiro Takeuchi, Takao Iwaki, Yasushi Goka
  • Airflow meter
    Publication number: 20030182998
    Abstract: An airflow meter has a member that defines a bypass passage. The bypass passage has a sensing passage in which a sensor tip is disposed. The sensing passage is restricted in at least a lateral direction that is a direction perpendicular to both a longitudinal direction of the sensing passage and a perpendicular direction perpendicular to the surface of the sensor tip. This arrangement defines relatively wider distance in the perpendicular direction on the sensor tip.
    Type: Application
    Filed: September 25, 2002
    Publication date: October 2, 2003
    Inventors: Koichi Goto, Yukihiro Takeuchi, Takao Iwaki, Yasushi Goka
  • Apparatus for measuring flow amount
    Publication number: 20030094041
    Abstract: An airflow meter has a membrane type sensor element. The sensor element is supported on a support member so that a sensing surface of the sensor element is in parallel to the airflow direction. The airflow meter has at least one means for protecting the sensor element from dust such as foreign particles. The protecting means is provided with an obstruction member that is disposed upstream or downstream of the sensor element with respect to the airflow direction. The sensor element is hidden behind the obstruction member. The obstruction member has gradually spreading surfaces and gradually converging surfaces along the airflow direction. Alternatively, the protecting means can be provided with a deflector, a cover member, a flow guide member, an inlet or a dust collector.
    Type: Application
    Filed: November 18, 2002
    Publication date: May 22, 2003
    Inventors: Takao Iwaki, Toshiyuki Morishita, Yasushi Kohno, Hiroyuki Wado, Yasushi Goka, Makoto Tsunekawa, Toshirou Gotou, Kiyoyuki Sugiura