Patents by Inventor Kazuya Kigawa

Kazuya Kigawa 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).

  • Apparatus for exchanging seal of shock absorbing apparatus
    Patent number: 5499796
    Abstract: To safely and quickly exchange a seal of a shock strut of a selected shock absorbing apparatus of an airplane, an apparatus is provided whereby the main body of the airplane is lifted by pressurizing and extending at least one other shock absorbing apparatus in order to extend the selected shock absorbing apparatus and expose the seal thereof. A shock strut of the selected shock absorbing apparatus is then lifted away from the associated wheels so that a new seal may be inserted from below the strut. To lift the strut, an apparatus is provided which includes a main body portion having an inclined surface substantially complementary to a downward-facing inclined surface of the strut, and a cylindrical portion which inserts into an attachment hole of the strut.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: March 19, 1996
    Assignee: All Nippon Airways Co., Ltd.
    Inventors: Kazuya Kigawa, Kenji Furukawa, Tetsu Deguchi, Sachiharu Inoue, Norikatsu Endo, Tatsuo Yanagisawa, Shinji Ikegami, Yasuyuki Omagari, Koji Kihara, Tachiki Sugawara, Kenzo Shimizu
  • Apparatus for exchanging seal of shock absorbing apparatus
    Patent number: 5419034
    Abstract: To safely and quickly exchange a seal of a shock strut of a selected shock absorbing apparatus of an airplane, an apparatus is provided whereby the main body of the airplane is lifted by pressurizing and extending at least one other shock absorbing apparatus in order to extend the selected shock absorbing apparatus and expose the seal thereof. A shock strut of the selected shock absorbing apparatus is then lifted away from the associated wheels so that a new seal may be inserted from below the strut.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: May 30, 1995
    Assignee: All Nippon Airways Co., Ltd.
    Inventors: Kazuya Kigawa, Kenji Furukawa, Tetsu Deguchi, Sachiharu Inoue, Norikatsu Endo, Tatsuo Yanagisawa, Shinji Ikegami, Yasuyuki Omagari, Koji Kihara, Tachiki Sugawara, Kenzo Shimizu
  • Method for exchanging seal for shock absorbing apparatus
    Patent number: 5323522
    Abstract: To safety and quickly exchange a seal of a shock strut of a selected shock absorbing apparatus of an airplane, the main body of the airplane is lifted by pressurizing and extending at least one other shock absorbing apparatus in order to extend the selected shock absorbing apparatus and expose the seal thereof. A shock strut of the selected shock absorbing apparatus is then lifted away from the associated wheels so that a new seal may be inserted from below the strut.
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: June 28, 1994
    Assignee: All Nippon Airways, Co., Ltd.
    Inventors: Kazuya Kigawa, Kenji Furukawa, Tetsu Deguchi, Sachiharu Inoue, Norikatsu Endo, Tatsuo Yanagisawa, Shinji Ikegami, Yasuyuki Omagari, Koji Kihara, Tachiki Sugawara, Kenzo Shimizu