Patents by Inventor Taro Arikawa

Taro Arikawa 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).

  • Movable breakwater and method of operating movable breakwater
    Patent number: 8915672
    Abstract: The present invention provides a movable breakwater that can do with a small amount of compressed air supplied to raise the buoyant steel pipe. The buoyant steel pipe 6 includes a buoyancy tank 6d in which gas is filled, an air chamber 6e provided above the buoyancy tank 6d, a penetration pipe 19 that penetrates through the buoyancy tank 6d and feeds compressed air supplied from a pressure accumulator tank 13 to the air chamber 6e, and an open chamber 6f, whose top side is open, provided above the air chamber 6e and in the buoyant steel pipe 6 at the upper end portion thereof.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: December 23, 2014
    Assignee: Mitsubishi Heavy Industries Bridge & Steel Structures Engineering Co., Ltd.
    Inventors: Hirofumi Inagaki, Yasuhiro Iida, Keiji Kanai, Makoto Kobayashi, Akira Sakaguchi, Taro Arikawa, Hirohide Kimura, Hisanobu Nagatomo, Kazuyoshi Kihara
  • MOVABLE BREAKWATER AND METHOD OF OPERATING MOVABLE BREAKWATER
    Publication number: 20120076587
    Abstract: The present invention provides a movable breakwater that can do with a small amount of compressed air supplied to raise the buoyant steel pipe. The buoyant steel pipe 6 includes a buoyancy tank 6d in which gas is filled, an air chamber 6e provided above the buoyancy tank 6d, a penetration pipe 19 that penetrates through the buoyancy tank 6d and feeds compressed air supplied from a pressure accumulator tank 13 to the air chamber 6e, and an open chamber 6f, whose top side is open, provided above the air chamber 6e and in the buoyant steel pipe 6 at the upper end portion thereof.
    Type: Application
    Filed: June 4, 2010
    Publication date: March 29, 2012
    Applicant: MITSUBHISH HEAVY INDUSTRIES BRIDGE & STEEL STRUCTURES ENGINEERING CO., LTD
    Inventors: Hirofumi Inagaki, Yasuhiro Iida, Keiji Kanai, Makoto Kobayashi, Akira Sakaguchi, Taro Arikawa, Hirohide Kimura, Hisanobu Nagatomo, Kazuyoshi Kihara