Patents by Inventor Sinji Tsuji

Sinji Tsuji 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 exhaust gas purification, process for producing the same, and method of purifying exhaust gas
    Patent number: 6806225
    Abstract: An NOx storage member including at least one member selected from the group consisting of alkali metals, alkaline-earth metals and rare-earth elements, and at least one noble metal selected from the group consisting of Pt, Pd and Rh are loaded on a support including a porous oxide including TiO2 at least and ZrO2 on which Rh is loaded in advance. H2, which is generated by Rh/ZrO2, inhibits the sulfur poisoning, and the support, which includes TiO2 at least, secures the initial NOx purifying capability, thereby further inhibiting the sulfur poisoning. Accordingly, it is possible to inhibit the NOx storage member from the sulfur poisoning, and to maintain a high NOx conversion even after a durability test.
    Type: Grant
    Filed: December 4, 2000
    Date of Patent: October 19, 2004
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yasuo Ikeda, Hiroshi Hirayama, Riemi Tanizawa, Sinji Tsuji