Patents by Inventor Riemi Muramoto

Riemi Muramoto 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).

  • Process for producing exhaust-gases-purifying catalyst
    Patent number: 5547913
    Abstract: A process for producing an exhaust-gases-purifying catalyst includes the steps of loading an NO.sub.x adsorbent on a porous support, carbonating the porous support with the NO.sub.x adsorbent loaded, thereby converting the NO.sub.x adsorbent into carbonate, and loading a noble metal catalyst ingredient on the porous support with the carbonate loaded. The process can produce an exhaust-gases-purifying catalyst on which the NO.sub.x adsorbent and the noble metal catalyst ingredient are loaded in large amounts and which can stably and efficiently purify NO.sub.x during the fuel-lean side (i.e., in the oxygen-rich atmospheres) driving.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: August 20, 1996
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Riemi Muramoto