Patents by Inventor Nobuki Negoro

Nobuki Negoro 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).

  • Cooling mechanism of combustion chamber, rocket engine having cooling mechanism, and method of manufacturing cooling mechanism
    Patent number: 10787998
    Abstract: A cooling mechanism includes a bottom wall (22) in contact with a combustion chamber, an upper wall (30), and a cooling passage (40) arranged between the bottom wall (22) and the upper wall (30). The cooling passage (40) includes a first passage (50) extending to a first direction, a second passage (60) extending to the first direction, and a connection section (70) connected with the first passage (50) and the second passage (60). The second passage (60) is arranged to have an offset to the first passage (50) in a second direction perpendicular to the first direction and along the bottom wall (22).
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: September 29, 2020
    Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., JAPAN AEROSPACE EXPLORATION AGENCY
    Inventors: Daiki Watanabe, Masaki Adachi, Hiroyuki Kobayashi, Akihide Kurosu, Hideto Kawashima, Nobuki Negoro
  • COOLING MECHANISM OF COMBUSTION CHAMBER, ROCKET ENGINE HAVING COOLING MECHANISM, AND METHOD OF MANUFACTURING COOLING MECHANISM
    Publication number: 20180051655
    Abstract: A cooling mechanism includes a bottom wall (22) in contact with a combustion chamber, an upper wall (30), and a cooling passage (40) arranged between the bottom wall (22) and the upper wall (30). The cooling passage (40) includes a first passage (50) extending to a first direction, a second passage (60) extending to the first direction, and a connection section (70) connected with the first passage (50) and the second passage (60). The second passage (60) is arranged to have an offset to the first passage (50) in a second direction perpendicular to the first direction and along the bottom wall (22).
    Type: Application
    Filed: March 9, 2016
    Publication date: February 22, 2018
    Inventors: Daiki WATANABE, Masaki ADACHI, Hiroyuki KOBAYASHI, Akihide KUROSU, Hideto KAWASHIMA, Nobuki NEGORO
  • Brazing method
    Patent number: 9427817
    Abstract: According to this brazing method, a first base member having a non-plated surface, a metal layer for functioning as a diffusion barrier layer, a brazing foil, and a second base member having a surface are arranged in this order so that the non-plated surface of the first base member and the surface of the second base member are faced with each other. The first base member and the second base member are brazed by using the brazing foil. The cost of providing a diffusion barrier layer between the first base member and the brazing foil is thereby reduced.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: August 30, 2016
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kosuke Nishikawa, Tetsuya Morifuji, Kyozo Mizuno, Nobuki Negoro
  • BRAZING METHOD
    Publication number: 20150090774
    Abstract: According to this brazing method, a first base member having a non-plated surface, a metal layer for functioning as a diffusion barrier layer, a brazing foil, and a second base member having a surface are arranged in this order so that the non-plated surface of the first base member and the surface of the second base member are faced with each other. The first base member and the second base member are brazed by using the brazing foil. The cost of providing a diffusion barrier layer between the first base member and the brazing foil is thereby reduced.
    Type: Application
    Filed: February 19, 2013
    Publication date: April 2, 2015
    Inventors: Kosuke Nishikawa, Tetsuya Morifuji, Kyozo Mizuno, Nobuki Negoro