Patents by Inventor Kiyoshi Amo

Kiyoshi Amo 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 injection valve and internal combustion engine mounting the same
    Patent number: 7231902
    Abstract: At an outlet portion of an injection hole (8) of a fuel injection valve (1), through removal of a part (A1, 7B) of a wall forming the injection hole (8), a restriction to a spray flow is released, thereby, a deflection spray is formed in which the spray is rich at the side of restriction released and is learn at the side of restricted, accordingly, ignition property of an internal combustion engine is improved, and an optimum spray is realized which reduces exhaust amount of unburnt gas components.
    Type: Grant
    Filed: May 23, 2005
    Date of Patent: June 19, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Ayumu Miyajima, Yoshio Okamoto, Yuzo Kadomukai, Shigenori Togashi, Kiyoshi Amo, Makoto Yamakado, Tohru Ishikawa, Hiromasa Kubo, Hiroshi Fujii
  • Fuel injection valve and internal combustion engine mounting the same
    Publication number: 20050205051
    Abstract: At an outlet portion of an injection hole (8) of a fuel injection valve (1), through removal of a part (A1, 7B) of a wall forming the injection hole (8), a restriction to a spray flow is released, thereby, a deflection spray is formed in which the spray is rich at the side of restriction released and is learn at the side of restricted, accordingly, ignition property of an internal combustion engine is improved, and an optimum spray is realized which reduces exhaust amount of unburnt gas components.
    Type: Application
    Filed: May 23, 2005
    Publication date: September 22, 2005
    Inventors: Ayumu Miyajima, Yoshio Okamoto, Yuzo Kadomukai, Shigenori Togashi, Kiyoshi Amo, Makoto Yamakado, Tohru Ishikawa, Hiromasa Kubo, Hiroshi Fujii
  • Fuel injection valve and internal combustion engine mounting the same
    Publication number: 20040089751
    Abstract: At an outlet portion of an injection hole (8) of a fuel injection valve (1), through removal of a part (A1, 7B) of a wall forming the injection hole (8), a restriction to a spray flow is released, thereby, a deflection spray is formed in which the spray is rich at the side of restriction released and is learn at the side of restricted, accordingly, ignition property of an internal combustion engine is improved, and an optimum spray is realized which reduces exhaust amount of unburnt gas components.
    Type: Application
    Filed: November 5, 2003
    Publication date: May 13, 2004
    Inventors: Ayumu Miyajima, Yoshio Okamoto, Yuzo Kadomukai, Shigenori Togashi, Kiyoshi Amo, Makoto Yamakado, Tohru Ishikawa, Hiromasa Kubo, Hiroshi Fujii
  • Fuel injection valve and internal combustion engine mounting the same
    Patent number: 6675766
    Abstract: At an outlet portion of an injection hole (8) of a fuel injection valve (1), through removal of a part (A1, 7B) of a wall forming the injection hole (8), a restriction to a spray flow is released, thereby, a deflection spray is formed in which the spray is rich at the side of restriction released and is learn at the side of restricted, accordingly, ignition property of an internal combustion engine is improved, and an optimum spray is realized which reduces exhaust amount of unburnt gas components.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: January 13, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Ayumu Miyajima, Yoshio Okamoto, Yuzo Kadomukai, Shigenori Togashi, Kiyoshi Amo, Makoto Yamakado, Tohru Ishikawa, Hiromasa Kubo, Hiroshi Fujii
  • Fuel injection valve and internal combustion engine mounting the same
    Publication number: 20030006316
    Abstract: At an outlet portion of an injection hole (8) of a fuel injection valve (1), through removal of a part (A1, 7B) of a wall forming the injection hole (8), a restriction to a spray flow is released, thereby, a deflection spray is formed in which the spray is rich at the side of restriction released and is learn at the side of restricted, accordingly, ignition property of an internal combustion engine is improved, and an optimum spray is realized which reduces exhaust amount of unburnt gas components.
    Type: Application
    Filed: August 8, 2002
    Publication date: January 9, 2003
    Inventors: Ayumu Miyajima, Yoshio Okamoto, Yuzo Kadomukai, Shigenori Togashi, Kiyoshi Amo, Makoto Yamakado, Tohru Ishikawa, Hiromasa Kubo, Hiroshi Fujii
  • Fuel injection valve and internal combustion engine mounting the same
    Patent number: 6453872
    Abstract: At an outlet portion of an injection hole (8) of a fuel injection valve (1), through removal of a part (A1, 7B) of a wall forming the injection hole (8), a restriction to a spray flow is eliminated, thereby, a deflection of the spray occurs in which the spray is rich at the side where this restriction is released and is lean at the side that is restricted. Thus, the ignition property of an internal combustion engine is improved, and an optimum spray is realized which reduces the amount of unburnt gas components being exhausted.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: September 24, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Ayumu Miyajima, Yoshio Okamoto, Yuzo Kadomukai, Shigenori Togashi, Kiyoshi Amo, Makoto Yamakado, Tohru Ishikawa, Hiromasa Kubo, Hiroshi Fujii