Patents by Inventor Yasunori Terada

Yasunori Terada 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).

  • Axle bearing assembly and method of measuring bearing clearances
    Patent number: 5718049
    Abstract: The end surface 2e of the press-fit portion 2c of the axle 2 is machined with high precision to serve as a reference surface for measuring the negative bearing clearance upon completion of the assembly. The inner ring 3 is press-fitted on the press-fit portion 2c of the axle 2 and is fixed in position by the nut 6 screwed on the threaded portion 2d of the axle 2. In this axle bearing assembly, the inner ring 3 abuts against the shoulder portion 2d of the axle 2 with no clearance defined therebetween, and the negative bearing clearance is assured.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: February 17, 1998
    Assignee: NTN Corporation
    Inventors: Hisashi Ohtsuki, Motoharu Niki, Yasunori Terada, Nobuyoshi Yamashita
  • Method for producing axle bearing assembly having preset negative bearing clearance
    Patent number: 5706580
    Abstract: The end surface 2e of the press-fit portion 2c of the axle 2 is machined with high precision to serve as a reference surface for measuring the negative bearing clearance upon completion of the assembly. The inner ring 3 is press-fitted on the press-fit portion 2c of the axle 2 and is fixed in position by the nut 6 screwed on the threaded portion 2d of the axle 2. In this axle bearing assembly, the inner ring 3 abuts against the shoulder portion 2d of the axle 2 with no clearance defined therebetween, and the negative bearing clearance is assured.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: January 13, 1998
    Assignee: NTN Corporation
    Inventors: Hisashi Ohtsuki, Motoharu Niki, Yasunori Terada, Nobuyoshi Yamashita
  • Axle bearing assembly and method of measuring bearing clearances
    Patent number: 5620263
    Abstract: The end surface 2c of the press-fit portion 2c of the axle 2 is machined with high precision to serve as a reference surface for measuring the negative bearing clearance upon completion of the assembly. The inner ring 3 is press-fitted on the press-fit portion 2c of the axle 2 and is fixed in position by the nut 6 screwed on the threaded portion 2d of the axle 2. In this axle bearing assembly, the inner ring 3 abuts against the shoulder portion 2d of the axle 2 with no clearance defined therebetween, and the negative bearing clearance is assured.
    Type: Grant
    Filed: July 18, 1995
    Date of Patent: April 15, 1997
    Assignee: NTN Corporation
    Inventors: Hisashi Ohtsuki, Motoharu Niki, Yasunori Terada, Nobuyoshi Yamashita