Patents by Inventor Daijiro ISHIMOTO

Daijiro ISHIMOTO 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).

  • Exhaust gas recirculation device of engine
    Patent number: 9010304
    Abstract: A connecting passage is formed inside a cylinder head, which extends rearward from an exhaust passage and connects to the exhaust passage. The connecting passage branches inside the cylinder head into two branch passages, which open at a rear end face of the cylinder head, respectively. An opening portion, one of opening portions of the branch passages, connects to an EGR cooler, and another opening portion, the other of opening portions of the branch passages, connects to a bypass pipe. Accordingly, the exhaust gas recirculation device of an engine which can restrain the device from being improperly large sized, providing the EGR cooler and the bypass pipe, can be provided.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: April 21, 2015
    Assignee: Mazda Motor Corporation
    Inventors: Yuji Kojima, Tomohiro Sunada, Daijiro Ishimoto
  • EXHAUST GAS RECIRCULATION DEVICE OF ENGINE
    Publication number: 20110315129
    Abstract: A connecting passage is formed inside a cylinder head, which extends rearward from an exhaust passage and connects to the exhaust passage. The connecting passage branches inside the cylinder head into two branch passages, which open at a rear end face of the cylinder head, respectively. An opening portion, one of opening portions of the branch passages, connects to an EGR cooler, and another opening portion, the other of opening portions of the branch passages, connects to a bypass pipe. Accordingly, the exhaust gas recirculation device of an engine which can restrain the device from being improperly large sized, providing the EGR cooler and the bypass pipe, can be provided.
    Type: Application
    Filed: June 16, 2011
    Publication date: December 29, 2011
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yuji KOJIMA, Tomohiro SUNADA, Daijiro ISHIMOTO