Patents Assigned to Kozo Izuka, Director-General of Agency of Industrial Science and Technology
  • Method of cleaning an exhaust gas containing nitrogen oxides and fine carbon-containing particulates
    Patent number: 5154901
    Abstract: An exhaust gas cleaner comprising a catalyst carried on a heat-resistant ter, the catalyst comprising (a) one or more alkali metals, (b) one or more metals selected from the group consisting of Zn, Sn and transition metals excluding platinum-group metals, and (c) one or more rare earth metals, and a method of cleaning an exhaust gas with it. Alkali metals may be added to a fuel.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: October 13, 1992
    Assignees: Kabushiki Kaisha Riken, Kozo Izuka Director-General of Agency of Industrial Science & Technology
    Inventors: Kiyohide Yoshida, Satoshi Sumiya, Takashi Ibusuki, Akira Obuchi, Hyogoro Aoyama, Akihiko Ohi, Hideo Ohuchi
  • Catalyst for cleaning exhaust gas
    Patent number: 5108977
    Abstract: An exhaust gas cleaner comprising a catalyst carrier on a heat-resistant filter, the catalyst comprising (a) one or more alkali metals, (b) one or more metals selected from the group consisting of Zn, Sn and transition metals excluding platinum-group metals, and (c) one or more rare earth metals, and a method of cleaning an exhaust gas with it. Alkali metals may be added to a fuel.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: April 28, 1992
    Assignees: Kabushiki Kaisha Riken, Kozo Izuka, Director-General of Agency of Industrial Science and Technology
    Inventors: Kiyohide Yoshida, Satoshi Sumiya, Takashi Ibusuki, Akira Obuchi, Hyogoro Aoyama, Akiniko Ohi, Hideo Ohuchi