Patents by Inventor Nobuo Tobi

Nobuo Tobi 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).

  • Monolithic catalyst catalytic converter with catalyst holding expansible retainer ring
    Patent number: 4448754
    Abstract: A catalytic converter includes a tubular casing within which is held a monolithic catalyst body which is generally of a columnar shape. The ends of the monolithic catalyst body are each engaged with a cushion ring, and each cushion ring is engaged with a retainer ring therefor, which is substantially axially fixed within the casing near to an end thereof. The monolithic catalyst body is supported within the casing by axial compressive force present between the retainer rings on the outside, the cushion rings between the retainer rings, and the monolithic catalyst body between the cushion rings.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: May 15, 1984
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kiyoshi Isogai, Nobuo Tobi, Itsuo Koga, Masahiko Takeuchi, Makoto Okamoto, Nobuo Ohmori, Naka Takita