Patents by Inventor Yoshihito Ogasawara

Yoshihito Ogasawara 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).

  • Wear-resistant copper-zinc alloy and mechanical device using same
    Patent number: 11473172
    Abstract: A wear-resistant copper-zinc alloy includes in mass %, 28 to 55% Zn, 0.5 to 2% P, and a balance of Cu and unavoidable impurities, and the wear-resistant copper-zinc alloy has an electrical conductivity of 10 to 33% IACS and a hardness of 3.6[Zn]-55 HBW or more, where [Zn] denotes the Zn content in mass %. Alternatively, a wear-resistant copper-zinc alloy includes in mass %, 40 to 55% Zn, 1 to 6% Mn, and a balance of Cu and unavoidable impurities, and the wear-resistant copper-zinc alloy has an electrical conductivity of 10 to 33% IACS and a hardness of 3.6[Zn]-55 HBW or more, where [Zn] denotes the Zn content in mass %.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: October 18, 2022
    Assignees: IHI CORPORATION, MIYOSHI GOKIN KOGYO CO., LTD.
    Inventors: Masaaki Yamane, Hayao Eguchi, Masato Arai, Yuta Arai, Mutsuki Ishijima, Hideharu Ito, Yoshihito Ogasawara, Shintaro Fujii, Genjiro Hagino
  • WEAR-RESISTANT COPPER-ZINC ALLOY AND MECHANICAL DEVICE USING SAME
    Publication number: 20190390302
    Abstract: A wear-resistant copper-zinc alloy includes in mass %, 28 to 55% Zn, 0.5 to 2% P, and a balance of Cu and unavoidable impurities, and the wear-resistant copper-zinc alloy has an electrical conductivity of 10 to 33% IACS and a hardness of 3.6[Zn]-55 HBW or more, where [Zn] denotes the Zn content in mass %. Alternatively, a wear-resistant copper-zinc alloy includes in mass %, 40 to 55% Zn, 1 to 6% Mn, and a balance of Cu and unavoidable impurities, and the wear-resistant copper-zinc alloy has an electrical conductivity of 10 to 33% IACS and a hardness of 3.6[Zn]-55 HBW or more, where [Zn] denotes the Zn content in mass %.
    Type: Application
    Filed: August 29, 2019
    Publication date: December 26, 2019
    Applicants: IHI Corporation, Miyoshi Gokin Kogyo Co., Ltd.
    Inventors: Masaaki YAMANE, Hayao EGUCHI, Masato ARAI, Yuta ARAI, Mutsuki ISHIJIMA, Hideharu ITO, Yoshihito OGASAWARA, Shintaro FUJII, Genjiro HAGINO
  • Copper alloy tube with excellent high-temperature brazeability and manufacturing method therefor
    Patent number: 10357813
    Abstract: Provided is a copper alloy tube that is a drawn tube made from a CuCrZr alloy which suppresses the deterioration of mechanical strength and, in particular, the coarsening of crystal grains even in a temperature zone of a solutionizing treatment, and is thus excellent in high-temperature brazeability, as well as the manufacturing method therefor. The manufacturing method comprises a solutionizing step of heating and holding a tubular extrusion material at a solutionizing temperature of 900° C.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: July 23, 2019
    Assignee: Miyoshi Gokin Kogyo Co., Ltd.
    Inventors: Masato Arai, Yuta Arai, Mutsuki Ishijima, Hayao Eguchi, Yoshihito Ogasawara, Genjiro Hagino
  • Copper Alloy Tube with Excellent High-Temperature Brazeability and Manufacturing Method Therefor
    Publication number: 20180304328
    Abstract: Provided is a copper alloy tube that is a drawn tube made from a CuCrZr alloy which suppresses the deterioration of mechanical strength and, in particular, the coarsening of crystal grains even in a temperature zone of a solutionizing treatment, and is thus excellent in high-temperature brazeability, as well as the manufacturing method therefor. The manufacturing method comprises a solutionizing step of heating and holding a tubular extrusion material at a solutionizing temperature of 900° C.
    Type: Application
    Filed: May 8, 2017
    Publication date: October 25, 2018
    Inventors: Masato Arai, Yuta Arai, Mutsuki Ishijima, Hayao Eguchi, Yoshihito Ogasawara, Genjiro Hagino