Patents by Inventor Mari Kohno

Mari Kohno 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).

  • Exhaust emission control device and exhaust emission control method for natural gas engine
    Patent number: 6637193
    Abstract: A natural gas engine capable of exhaust emission control over the entire temperature range and at low costs without requiring a complicated structure. An adsorbent (7) is disposed between a fuel tank (4) and a fuel supply port (5) on a suction air passage (2), and NMOG in the fuel gas supplied to the fuel tank (4) is adsorbed by the adsorbent (7) to purify the fuel gas in advance. When the temperature of a catalyst (11) disposed on an exhaust passage (3) reaches an activation temperature, the adsorbent (7) is heated by a heater (9) to a desorption temperature to desorb NMOG from the adsorbent (7) and purify the NMOG by the catalyst (11).
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: October 28, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Masaru Oku, Hiroshi Ogasa, Mari Kohno
  • Exhaust emission control device and exhaust emission control method for natural gas engine
    Publication number: 20020178715
    Abstract: A natural gas engine capable of exhaust emission control over the entire temperature range and at low costs without requiring a complicated structure. An adsorbent (7) is disposed between a fuel tank (4) and a fuel supply port (5) on a suction air passage (2), and NMOG in the fuel gas supplied to the fuel tank (4) is adsorbed by the adsorbent (7) to purify the fuel gas in advance. When the temperature of a catalyst (11) disposed on an exhaust passage (3) reaches an activation temperature, the adsorbent (7) is heated by a heater (9) to a desorption temperature to desorb NMOG from the adsorbent (7) and purify the NMOG by the catalyst (11).
    Type: Application
    Filed: April 12, 2002
    Publication date: December 5, 2002
    Inventors: Masaru Oku, Hiroshi Ogasa, Mari Kohno