Patents by Inventor Mitsutoshi Hamamura

Mitsutoshi Hamamura 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).

  • Fuel reforming method and system
    Patent number: 7201889
    Abstract: A fuel reforming method includes the step of supplying carbon-containing fuel and steam to a reactor filled with a fuel reforming catalyst and a CO2 absorbent and discharging CO2, and setting the absorbent at an absorption temperature, thereby converting the carbon-containing fuel into reformed fuel, and separating CO2 from the reformed fuel, the step of obtaining a product gas by oxidizing a portion of the reformed fuel and/or the carbon-containing fuel with an oxidizer, and heating the absorbent with this product gas to a regeneration temperature, thereby regenerating the absorbent and storing heat in this absorbent, and the step of supplying the carbon-containing fuel and steam to the reactor, thereby cooling, to the absorption temperature, the absorbent heated to the regeneration temperature, and converting the carbon-containing fuel into reformed fuel by heat energy stored in the CO2 absorbent. An apparatus for the method is also disclosed.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: April 10, 2007
    Assignees: Kabushiki Kaisha Toshiba, Toyo Engineering Corporation
    Inventors: Keiji Murata, Kazuaki Nakagawa, Yoshikazu Hagiwara, Kazuya Yamada, Mitsutoshi Hamamura, Yasuhito Sakakibara, Hidetsugu Fujii
  • Fuel reforming method and system
    Publication number: 20030150163
    Abstract: A fuel reforming method includes the step of supplying carbon-containing fuel and steam to a reactor filled with a fuel reforming catalyst and a CO2 absorbent and discharging CO2, and setting the absorbent at an absorption temperature, thereby converting the carbon-containing fuel into reformed fuel, and separating CO2 from the reformed fuel, the step of obtaining a product gas by oxidizing a portion of the reformed fuel and/or the carbon-containing fuel with an oxidizer, and heating the absorbent with this product gas to a regeneration temperature, thereby regenerating the absorbent and storing heat in this absorbent, and the step of supplying the carbon-containing fuel and steam to the reactor, thereby cooling, to the absorption temperature, the absorbent heated to the regeneration temperature, and converting the carbon-containing fuel into reformed fuel by heat energy stored in the CO2 absorbent. An apparatus for the method is also disclosed.
    Type: Application
    Filed: January 24, 2003
    Publication date: August 14, 2003
    Inventors: Keiji Murata, Kazuaki Nakagawa, Yoshikazu Hagiwara, Kazuya Yamada, Mitsutoshi Hamamura, Yasuhito Sakakibara, Hidetsugu Fujii