Patents by Inventor Takahisa Izumi

Takahisa Izumi 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).

  • Catalytic converter with a catalyst bed supporter
    Patent number: 4185074
    Abstract: A catalyst bed supporter is disposed in a container of a catalytic converter so that it abuts the catalyst bed only when the catalyst bed is subjected to heat expansion. Thus, the catalyst bed is prevented from being excessively expanded even when heated.
    Type: Grant
    Filed: April 1, 1977
    Date of Patent: January 22, 1980
    Assignee: Nissan Motor Company, Limited
    Inventors: Takayuki Yamazaki, Takahisa Izumi, Hajime Kawasaki
  • Converter with catalyst pellets
    Patent number: 4052166
    Abstract: A pellet holding casing disposed in a container is formed at its wall sections with a plurality of louvers that extend outwardly away from the casing. Each of the louvers is formed with at least one channel shaped corrugation in substantially the top portion thereof for providing the converter with improved characteristics with respect to flow resistance and thermal expansion.
    Type: Grant
    Filed: October 29, 1976
    Date of Patent: October 4, 1977
    Assignee: Nissan Motor Company, Limited
    Inventors: Yasuhiro Mita, Takayuki Yamazaki, Takahisa Izumi