Patents by Inventor Yasuhiko Tsuru

Yasuhiko Tsuru 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 treatment catalyst and exhaust gas treatment method
    Patent number: 7375054
    Abstract: The present invention provides an exhaust gas treatment catalyst characterized by containing a compound oxide expressed by the following general formula (1), AMxOy ??(1) (wherein A represents an alkali metal or alkaline earth metal, M represents Cr, Mn, Fe, Co or Ni, O represents oxygen, and 0<x?4 and 0<y?8) and an exhaust gas treatment method using the said catalyst. According to the present invention, there can be provided an exhaust gas treatment compound oxide that can effectively remove particulates and NOx contained in exhaust gas with a high oxygen concentration that is discharged from a diesel engine etc., and also has excellent resistance to sulfur poisoning.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: May 20, 2008
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Asako Eguchi, Shuji Fujii, Akihiro Sawata, Yasuhiko Tsuru
  • Exhaust gas treatment catalyst and exhaust gas treatment method
    Publication number: 20050049143
    Abstract: The present invention provides an exhaust gas treatment catalyst characterized by containing a compound oxide expressed by the following general formula (1), AMxOy??(1) (wherein A represents an alkali metal or alkaline earth metal, M represents Cr, Mn, Fe, Co or Ni, O represents oxygen, and 0<x?4 and 0<y?8) and an exhaust gas treatment method using the said catalyst. According to the present invention, there can be provided an exhaust gas treatment compound oxide that can effectively remove particulates and NOx contained in exhaust gas with a high oxygen concentration that is discharged from a diesel engine etc., and also has excellent resistance to sulfur poisoning.
    Type: Application
    Filed: August 5, 2004
    Publication date: March 3, 2005
    Inventors: Asako Eguchi, Shuji Fujii, Akihiro Sawata, Yasuhiko Tsuru