Patents by Inventor Nicolas Vincent BARBI

Nicolas Vincent BARBI 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).

  • Bearing ring for roller bearing, method for manufacturing the same, and roller bearing
    Patent number: 10578162
    Abstract: A bearing ring for a roller bearing includes: an inner layer part that is formed of tempering martensite or sorbite; and a surface layer part that surrounds the entire periphery of the inner layer part, in which Vickers hardness of a surface thereof is larger than that of the inner layer, and which is formed of tempering martensite. A raceway portion of the surface layer part a portion that is in contact with at least one end of the rolling contact surface of the roller in an axial direction, and includes a first raceway portion at which compressive residual stress of the raceway surface is relatively high.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: March 3, 2020
    Assignee: JTEKT CORPORATION
    Inventors: Kensuke Suzuki, Wataru Yoshida, Nicolas Vincent Barbi, Tsuyoshi Mikami
  • Bearing ring for roller bearing, manufacturing method of bearing ring for roller bearing, and needle roller bearing
    Patent number: 10393180
    Abstract: A raceway of a roller bearing includes a first raceway whose raceway surface is under a relatively high compressive residual stress, and a second raceway whose raceway surface is under a compressive residual stress lower than the compressive residual stress applied to the raceway surface of the first raceway. The raceway surface of the second raceway has a Vickers hardness of 700 HV or more but less than 800 HV. The raceway surface of the first raceway includes a portion that is harder than the raceway surface of the second raceway and that is to be in contact with at least one of axial ends of a rolling contact surface of a roller. A rib includes a rib surface having a Vickers hardness of 450 HV or more but less than 550 HV.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: August 27, 2019
    Assignee: JTEKT CORPORATION
    Inventors: Kensuke Suzuki, Wataru Yoshida, Nicolas Vincent Barbi, Tsuyoshi Mikami
  • BEARING RING FOR ROLLER BEARING, METHOD FOR MANUFACTURING THE SAME, AND ROLLER BEARING
    Publication number: 20190107152
    Abstract: A bearing ring for a roller bearing includes: an inner layer part that is formed of tempering martensite or sorbite; and a surface layer part that surrounds the entire periphery of the inner layer part, in which Vickers hardness of a surface thereof is larger than that of the inner layer, and which is formed of tempering martensite. A raceway portion of the surface layer part a portion that is in contact with at least one end of the rolling contact surface of the roller in an axial direction, and includes a first raceway portion at which compressive residual stress of the raceway surface is relatively high.
    Type: Application
    Filed: April 4, 2017
    Publication date: April 11, 2019
    Applicant: JTEKT CORPORATION
    Inventors: Kensuke SUZUKI, Wataru YOSHIDA, Nicolas Vincent BARBI, Tsuyoshi MIKAMI
  • BEARING RING FOR ROLLER BEARING, MANUFACTURING METHOD OF BEARING RING FOR ROLLER BEARING, AND NEEDLE ROLLER BEARING
    Publication number: 20190072132
    Abstract: A raceway of a roller bearing includes a first raceway whose raceway surface is under a relatively high compressive residual stress, and a second raceway whose raceway surface is under a compressive residual stress lower than the compressive residual stress applied to the raceway surface of the first raceway. The raceway surface of the second raceway has a Vickers hardness of 700 HV or more but less than 800 HV. The raceway surface of the first raceway includes a portion that is harder than the raceway surface of the second raceway and that is to be in contact with at least one of axial ends of a rolling contact surface of a roller. A rib includes a rib surface having a Vickers hardness of 450 HV or more but less than 550 HV.
    Type: Application
    Filed: August 24, 2018
    Publication date: March 7, 2019
    Applicant: JTEKT CORPORATION
    Inventors: Kensuke SUZUKI, Wataru YOSHIDA, Nicolas Vincent BARBI, Tsuyoshi MIKAMI