Patents by Inventor Satoshi Kodou

Satoshi Kodou 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).

  • Secondary air supply abnormality detection system
    Patent number: 6830043
    Abstract: A secondary air supply abnormality detection system determines that an abnormality is generated in a system including a secondary air supply system if a true secondary air flow rate is out of a predetermined range. The true secondary air flow rate is calculated by subtracting a secondary air flow rate average at the time when an air pump is not operating from another secondary air flow rate average at the time when the air pump is operating. Thus, variation in the secondary air flow rate due to change with time or production tolerance can be suitably corrected. Since calculation accuracy of the true secondary air flow rate is improved, determination accuracy of the abnormality in the system including the secondary air supply system can be improved.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: December 14, 2004
    Assignee: Denso Corporation
    Inventors: Shujirou Morinaga, Kenichi Sago, Satoshi Kodou, Kenichi Fujiki, Masayuki Kita
  • Secondary air supply abnormality detection system
    Publication number: 20040148926
    Abstract: A secondary air supply abnormality detection system determines that an abnormality is generated in a system including a secondary air supply system if a true secondary air flow rate is out of a predetermined range. The true secondary air flow rate is calculated by subtracting a secondary air flow rate average at the time when an air pump is not operating from another secondary air flow rate average at the time when the air pump is operating. Thus, variation in the secondary air flow rate due to change with time or production tolerance can be suitably corrected. Since calculation accuracy of the true secondary air flow rate is improved, determination accuracy of the abnormality in the system including the secondary air supply system can be improved.
    Type: Application
    Filed: December 24, 2003
    Publication date: August 5, 2004
    Applicant: DENSO CORPORATION
    Inventors: Shujirou Morinaga, Kenichi Sago, Satoshi Kodou, Kenichi Fujiki, Masayuki Kita