Patents by Inventor Akiniko Ohi

Akiniko Ohi 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).

  • 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