Patents by Inventor Susumu Owaki

Susumu Owaki 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).

  • Forged component, method for manufacturing the same, and connecting rod
    Patent number: 10822677
    Abstract: A forged component having a chemical composition including, by mass %, C: 0.30 to 0.45%, Si: 0.05 to 0.35%, Mn: 0.50 to 0.90%, P: 0.030 to 0.070%, S: 0.040 to 0.070%, Cr: 0.01 to 0.50%, Al: 0.001 to 0.050%, V: 0.25 to 0.35%, Ca: 0 to 0.0100%, N: 0.0150% or less, and the balance being Fe and unavoidable impurities, and satisfying formula 1. Metal structure is a ferrite pearlite structure, and a ferrite area ratio is 30% or more. Vickers hardness is in the range of 320 to 380 HV. 0.2% yield strength is 800 MPa or more. A Charpy V-notch impact value is in the range of 7 to 15 J/cm2.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: November 3, 2020
    Assignees: AICHI STEEL CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeyuki Uenishi, Susumu Owaki, Hisanori Koma, Tomoyasu Kitano, Kazuhiro Tanahashi, Nobuyuki Shinohara
  • FORGED COMPONENT, METHOD FOR MANUFACTURING THE SAME, AND CONNECTING ROD
    Publication number: 20150354042
    Abstract: A forged component having a chemical composition including, by mass %, C: 0.30 to 0.45%, Si: 0.05 to 0.35%, Mn: 0.50 to 0.90%, P: 0.030 to 0.070%, S: 0.040 to 0.070%, Cr: 0.01 to 0.50%, Al: 0.001 to 0.050%, V: 0.25 to 0.35%, Ca: 0 to 0.0100%, N: 0.0150% or less, and the balance being Fe and unavoidable impurities, and satisfying formula 1. Metal structure is a ferrite pearlite structure, and a ferrite area ratio is 30% or more. Vickers hardness is in the range of 320 to 380 HV. 0.2% yield strength is 800 MPa or more. A Charpy V-notch impact value is in the range of 7 to 15 J/cm2.
    Type: Application
    Filed: March 18, 2014
    Publication date: December 10, 2015
    Applicants: AICHI STEEL CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takeyuki UENISHI, Susumu OWAKI, Hisanori KOMA, Tomoyasu KITANO, Kazuhiro TANAHASHI, Nobuyuki SHINOHARA
  • Lead-free steel for machine structural use with excellent machinability and low strength anisotropy
    Patent number: 7445680
    Abstract: A lead-free steel for machine structural use with excellent machinability and low strength an isotropy, which does not contain Pb and is equal to or higher than a conventional D Pb-containing free cutting steel in properties, is provided. This steel includes, on the weight basis, C: 0.10 to 0.65%; Si: 0.03 to 1.00%; Mn: 0.30 to 2.50%; S: 0.03 to 0.35%; Cr: 0.1 to 2.0%; Al: less than 0.010%; Ca: 0.0005 to 0.020%; Mg: 0.0003 to 0.020%; 0: less than 20 ppm; and the balance being Fe and inevitable impurities.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: November 4, 2008
    Assignee: Sanyo Special Steel Co., Ltd.
    Inventors: Naoki Iwama, Susumu Owaki, Masao Uchiyama, Isao Fujii, Syoji Nishimon, Norimasa Tsunekage, Kazuhiro Kobayashi, Motohide Mori, Kazutaka Ogo, Kunio Naito
  • Lead-free steel for machine structural use with excellent machinability and low strength anisotropy
    Patent number: 7195736
    Abstract: A lead-free steel for machine structural use with excellent machinability and low strength anisotropy, which does not contain Pb and is equal to or higher than a conventional Pb-containing free cutting steel in properties, is provided. This steel includes, on the weight basis, C: 0.10 to 0.65%; Si: 0.03 to 1.00%; Mn: 0.30 to 2.50%; S: 0.03 to 0.35%; Cr: 0.1 to 2.0%; Al: less than 0.010%; Ca: 0.0005 to 0.020%; Mg: 0.0003 to 0.020%; O: less than 20 ppm; and the balance being Fe and inevitable impurities.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: March 27, 2007
    Assignee: Sanyo Special Steel Co., Ltd.
    Inventors: Naoki Iwama, Susumu Owaki, Masao Uchiyama, Isao Fujii, Syoji Nishimon, Norimasa Tsunekage, Kazuhiro Kobayashi, Motohide Mori, Kazutaka Ogo, Kunio Naito
  • Lead-free steel for machine structural use with excellent machinability low strength anisotropy
    Publication number: 20050058567
    Abstract: A lead-free steel for machine structural use with excellent machinability and low strength an isotropy, which does not contain Pb and is equal to or higher than a conventional D Pb-containing free cutting steel in properties, is provided. This steel includes, on the weight basis, C: 0.10 to 0.65%; Si: 0.03 to 1.00%; Mn: 0.30 to 2.50%; S: 0.03 to 0.35%; Cr: 0.1 to 2.0%; Al: less than 0.010%; Ca: 0.0005 to 0.020%; Mg: 0.0003 to 0.020%; 0: less than 20 ppm; and the balance being Fe and inevitable impurities.
    Type: Application
    Filed: August 6, 2004
    Publication date: March 17, 2005
    Applicant: SANYO SPECIAL STEEL CO., LTD.
    Inventors: Naoki Iwama, Susumu Owaki, Masao Uchiyama, Isao Fujii, Syoji Nishimon, Norimasa Tsunekage, Kazuhiro Kobayashi, Motohide Mori, Kazutaka Ogo, Kunio Naito