Patents by Inventor Kanji Ueno

Kanji Ueno 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).

  • Patent number: 8734598
    Abstract: There is provided an aluminum surface treatment process, comprising: preparing an aluminum material containing silicon and magnesium; and plasma nitriding the aluminum material to form an aluminum nitride region on a surface of the aluminum material.
    Type: Grant
    Filed: January 16, 2008
    Date of Patent: May 27, 2014
    Assignee: Jatco Ltd
    Inventors: Fumiya Yakabe, Yoshio Jimbo, Kanji Ueno, Hideyuki Kuwahara
  • Publication number: 20080169049
    Abstract: There is provided an aluminum surface treatment process, comprising: preparing an aluminum material containing silicon and magnesium; and plasma nitriding the aluminum material to form an aluminum nitride region on a surface of the aluminum material.
    Type: Application
    Filed: January 16, 2008
    Publication date: July 17, 2008
    Inventors: Fumiya Yakabe, Yoshio Jimbo, Kanji Ueno, Hideyuki Kuwahara
  • Patent number: 7083688
    Abstract: The high-strength race of the present invention comprises using A steel for a high-strength race comprising the following elements in percentage by weight: C: 0.30 to 0.60%, Si: 0.30 to 1.30%, Mn: 0.5 to 1.5%, B: 0.0050% or less, Cr: 0.1 to 0.5%, Mo: 0.1 to 0.5%, Si+Mo: 0.5 to 1.4%, Ni: 0.02 to 1.0%, the balance of Fe and unavoidable impurities, performing induction hardening to make the race have a surface hardness of 58 HRC or more and further a surface hardness of 52 HRC or more even after the surface is tempered at 300° C. The high-strength race is superior in rotating fatigue properties, anti-surface fatigue strength and productivity by a combination of composition control and induction hardening.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: August 1, 2006
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Shinji Asano, Youichi Watanabe, Tatsuo Iguchi, Kanji Ueno
  • Publication number: 20020112787
    Abstract: The high-strength race of the present invention comprises using A steel for a high-strength race comprising the following elements in percentage by weight: C: 0.30 to 0.60%, Si: 0.30 to 1.30%, Mn: 0.5 to 1.5%, B: 0.0050% or less, Cr: 0.1 to 0.5%, Mo: 0.1 to 0.5%, Si +Mo: 0.5 to 1.4%, Ni: 0.02 to 1.0%, the balance of Fe and unavoidable impurities, performing induction hardening to make the race have a surface hardness of 58 HRC or more and further a surface hardness of 52 HRC or more even after the surface is tempered at 300° C. The high-strength race is superior in rotating fatigue properties, anti-surface fatigue strength and productivity by a combination of composition control and induction hardening.
    Type: Application
    Filed: November 30, 2001
    Publication date: August 22, 2002
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Shinji Asano, Youichi Watanabe, Tatsuo Iguchi, Kanji Ueno