Patents by Inventor Atsushi Segawa

Atsushi Segawa 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).

  • Patent number: 8043989
    Abstract: A system is provided for desulfurizing a hydrocarbon fuel containing a light amount of methanol and a slight amount of water. The desulfurization system uses a Y-type zeolite-based desulfurizing agent containing at least copper arranged upstream of the system and an X-type zeolite-based desulfurizing agent containing at least silver arranged downstream of the system and thus can maintain desulfurization effect for a long period of time.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: October 25, 2011
    Assignee: Nippon Oil Corporation
    Inventors: Yoshiyuki Nagayasu, Atsushi Segawa, Kazunori Miyazawa, Yoshihiro Kobori
  • Publication number: 20100160152
    Abstract: A system is provided for desulfurizing a hydrocarbon fuel containing a light amount of methanol and a slight amount of water. The desulfurization system uses a Y-type zeolite-based desulfurizing agent containing at least copper arranged upstream of the system and an X-type zeolite-based desulfurizing agent containing at least silver arranged downstream of the system and thus can maintain desulfurization effect for a long period of time.
    Type: Application
    Filed: March 4, 2008
    Publication date: June 24, 2010
    Applicant: NIPPON OIL CORPORATION
    Inventors: Yoshiyuki NAGAYASU, Atsushi SEGAWA, Kazunori MIYAZAWA, Yoshihiro KOBORI
  • Publication number: 20100068572
    Abstract: A desulfurization agent for kerosene is provided that can remove efficiently the sulfurs contained in kerosene under low pressure conditions and thus is excellent in an effect to inhibit carbon deposition. The desulfurization agent contains 45 to 75 percent by mass of nickel oxide, 3 to 40 percent by mass of zinc oxide, 10 to 25 percent by mass of silica, 5 percent by mass or less of alumina and 0.1 percent by mass or less of sodium and has a BET specific surface area of 200 m2/g or greater.
    Type: Application
    Filed: October 30, 2007
    Publication date: March 18, 2010
    Applicant: Nippon Oil Corporation
    Inventors: Atsushi Segawa, Michiaki Adachi, Tatsusaburou Komami, Kazunori Miyazawa