Patents by Inventor Shuichi Kubo

Shuichi Kubo 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 gas purification device for an internal combustion engine
    Patent number: 6499294
    Abstract: A converter containing a NOx absorbing and reducing catalyst is disposed in the exhaust passage of an internal combustion engine. The upstream half portion (portion of the inlet side) of the substrate of the NOx absorbing and reducing catalyst in the converter carries the oxygen storage component that absorbs oxygen in the exhaust gas when the air-fuel ratio of the exhaust gas is lean and releases the absorbed oxygen when the air-fuel ratio of the exhaust gas flowing in is rich in addition to carrying the NOx absorbing and reducing catalyst. After NOx is absorbed by the NOx absorbing and reducing catalyst as a result of operating the engine at a lean air-fuel ratio, the engine is operated at a rich air-fuel ratio, so that NOx is released from the NOx absorbing and reducing catalyst and is purified by reduction.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: December 31, 2002
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Katoh, Takaaki Itou, Hiroshi Tanaka, Shuichi Kubo, Yoshiyuki Mandokoro, Masahiro Taki
  • Fuel reforming apparatus
    Publication number: 20020031690
    Abstract: In a fuel cell system 10, a cracking unit 20 is provided upstream of a reformer 36. When the cracking unit 20 is supplied with oxygen and gasoline as a hydrocarbon-based fuel, the gasoline is partially oxidized and decomposed using oxidation-generated heat to give a hydrocarbon with a lower carbon number. The hydrocarbon with the lower carbon number obtained by such gasoline pyrolysis is fed to the reformer 36 and supplied to a reforming reaction zone.
    Type: Application
    Filed: August 17, 2001
    Publication date: March 14, 2002
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Shimazu, Satoshi Iguchi, Satoshi Aoyama, Koichi Numata, Kazuhisa Kunitake, Takeshi Nishikawa, Shuichi Kubo, Satoshi Yamazaki
  • Fuel formulations to extend the lean limit (law770)
    Patent number: 6206940
    Abstract: The invention is related to fuels having a high laminar flame speed and particular distillation characteristics. More particularly, the invention is directed towards fuels containing at least one species having a laminar flame speed greater than isooctane's laminar flame speed and specific distillation characteristics including T50, FBP, IBP.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: March 27, 2001
    Assignee: Exxon Research and Engineering Company
    Inventors: Walter Weissman, John E. Johnston, Anthony M. Dean, Kazuhiro Akihama, Satoshi Iguchi, Shuichi Kubo