Patents by Inventor Mitsuharu Sahashi

Mitsuharu Sahashi 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).

  • Method and apparatus of working plain bearing
    Patent number: 6688001
    Abstract: There is provided a method of working a plain bearing and a working apparatus of the plain bearing, which make it easy to perform working by forming a plurality of inclined surfaces of different angles in portions on both sides of the inner peripheral surface of the bearing alloy metal of the plain bearing in the axial direction thereof. In the working method and apparatus, a working holder 18 is provided which has a groove 20 extending on the inner peripheral surface in the peripheral direction and portions on both sides of the groove in the transverse direction formed in step-like shape, a half bearing 11 is housed in the working holder 18, and both ends of the half bearing 11 in the peripheral direction are pressed by use of pressing means 24. Then, the half bearing undergoes plastic deformation so as to be fitted into the groove and both sides of the half bearing in the axial direction thereof come into abutment with the edges 22, 23 of the step-like portions and are deformed in a polygonal line form.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: February 10, 2004
    Assignee: Daido Metal Company Ltd.
    Inventors: Yutaka Okamoto, Satoshi Imai, Nobutaka Hiramatsu, Hideo Ishikawa, Takayuki Shibayama, Mikio Suzuki, Mitsuharu Sahashi
  • Method and apparatus of working plain bearing
    Publication number: 20020124408
    Abstract: There is provided a method of working a plain bearing and a working apparatus of the plain bearing, which make it easy to perform working by forming a plurality of inclined surfaces of different angles in portions on both sides of the inner peripheral surface of the bearing alloy metal of the plain bearing in the axial direction thereof. In the working method and apparatus, a working holder 18 is provided which has a groove 20 extending on the inner peripheral surface in the peripheral direction and portions on both sides of the groove in the transverse direction formed in step-like shape, a half bearing 11 is housed in the working holder 18, and both ends of the half bearing 11 in the peripheral direction are pressed by use of pressing means 24. Then, the half bearing undergoes plastic deformation so as to be fitted into the groove and both sides of the half bearing in the axial direction thereof come into abutment with the edges 22, 23 of the step-like portions and are deformed in a polygonal line form.
    Type: Application
    Filed: March 6, 2002
    Publication date: September 12, 2002
    Inventors: Yutaka Okamoto, Satoshi Imai, Nobutaka Hiramatsu, Hideo Ishikawa, Takayuki Shibayama, Mikio Suzuki, Mitsuharu Sahashi