Patents by Inventor Yoshitada Kodama

Yoshitada Kodama 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).

  • Emission control apparatus and emission control method
    Patent number: 6729128
    Abstract: Carbon-containing suspended particulates in exhaust gas from an internal combustion engine are collected by a heat-resistant filter, and are burned on the filter. It is determined whether there is a need to increase the temperature of the heat-resistant filter. If it is necessary to increase the filter temperature, the dynamic pressure on the filter is increased. The conceivable cases where a filter temperature increase is needed includes a case where the exhaust gas temperature is low, a case where the filter is clogged to some extent, etc. If the dynamic pressure on the heat-resistant filter is increased, the filter temperature rises. Therefore, particulates can be effectively removed from exhaust gas while the clogging of the heat-resistant filter is avoided.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: May 4, 2004
    Assignees: Toyota Jidosha Kabushiki Kaisha, Nippon Soken, Incorporated
    Inventors: Kazuhiko Shiratani, Naohisa Oyama, Yoshitada Kodama
  • Emission control apparatus and emission control method
    Publication number: 20020194844
    Abstract: Carbon-containing suspended particulates in exhaust gas from an internal combustion engine are collected by a heat-resistant filter, and are burned on the filter. It is determined whether there is a need to increase the temperature of the heat-resistant filter. If it is necessary to increase the filter temperature, the dynamic pressure on the filter is increased. The conceivable cases where a filter temperature increase is needed includes a case where the exhaust gas temperature is low, a case where the filter is clogged to some extent, etc. If the dynamic pressure on the heat-resistant filter is increased, the filter temperature rises. Therefore, particulates can be effectively removed from exhaust gas while the clogging of the heat-resistant filter is avoided.
    Type: Application
    Filed: June 17, 2002
    Publication date: December 26, 2002
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuhiko Shiratani, Naohisa Oyama, Yoshitada Kodama