Patents by Inventor Keizo TAKENAKA

Keizo TAKENAKA 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).

  • High-lift-device, wing, and noise reduction device for high-lift-device
    Patent number: 9440729
    Abstract: In a high-lift-device, a wing, and noise reduction device for a high-lift-device that are capable of reducing noise generated when a flap is extended, preventing deterioration of aerodynamics characteristic when retracting the flap, and preventing an increase in weight, a flap main body (5) disposed so as to be extendable/retractable relative to a main wing and a protruding portion (6A-1) that smoothly protrudes at least at the vicinity of one end portion of a positive-pressure surface (PS) of the flap main body (5) in a direction away from the flap main body (5) are provided.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: September 13, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Makoto Hirai, Keizo Takenaka, Taro Imamura, Kazuomi Yamamoto, Yuzuru Yokokawa
  • Main landing gear bay of aircraft and aircraft
    Patent number: 9415864
    Abstract: A main landing gear bay 15 which is formed inward of a fuselage 11 of an aircraft 10 from an opening portion provided in a surface of the fuselage 11 so as to store a main landing gear 13 of the aircraft 10, the main landing gear bay 15 including inclined regions 16 and 17 that are continuous from a rim of the opening portion to the fuselage 11 surface in an airframe axis direction X of the aircraft 10, wherein the inclined regions 16 and 17 are formed so as to have a larger depth toward the rim of the opening portion. Since the inclined regions 16 and 17 are formed so as to have a larger depth toward the rim of the opening portion, the aerodynamic drag acting on the main landing gear bay can be reduced. Accordingly, the fuel consumption of the aircraft can be improved.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: August 16, 2016
    Assignee: MITSUBISHI AIRCRAFT CORPORATION
    Inventors: Keizo Takenaka, Keita Hatanaka, Masaru Kodama
  • MAIN LANDING GEAR BAY OF AIRCRAFT AND AIRCRAFT
    Publication number: 20150001342
    Abstract: A main landing gear bay 15 which is formed inward of a fuselage 11 of an aircraft 10 from an opening portion provided in a surface of the fuselage 11 so as to store a main landing gear 13 of the aircraft 10, the main landing gear bay 15 including inclined regions 16 and 17 that are continuous from a rim of the opening portion to the fuselage 11 surface in an airframe axis direction X of the aircraft 10, wherein the inclined regions 16 and 17 are formed so as to have a larger depth toward the rim of the opening portion. Since the inclined regions 16 and 17 are formed so as to have a larger depth toward the rim of the opening portion, the aerodynamic drag acting on the main landing gear bay can be reduced. Accordingly, the fuel consumption of the aircraft can be improved.
    Type: Application
    Filed: June 11, 2014
    Publication date: January 1, 2015
    Inventors: Keizo TAKENAKA, Keita HATANAKA, Masaru KODAMA