Patents by Inventor Yurie KOAMI

Yurie KOAMI 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).

  • Chain and manufacturing method of a chain
    Patent number: 10443686
    Abstract: A chain includes a plurality of inner links and a plurality of outer links. Each of the inner links includes a pair of inner plates each having a bush hole and a bush. The bush includes both end portions which are press-fitted into bush holes of the pair of the inner plates. Each of the outer links includes a pair of outer plates and a pin. A diametric dimension in a pitch direction of an inner diametric surface of the bush is constant along an entire axial length of the bush. A diametric dimension in a height direction of the inner diametric surface at each of the both end portions of the bush is smaller than a diametric dimension in the height direction of the inner diametric surface at an intermediate part of the bush located between the pair of inner plates.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: October 15, 2019
    Assignee: DAIDO KOGYO CO., LTD.
    Inventors: Motoki Tanaka, Yurie Koami, Hiroki Nakagawa, Yuma Osaka
  • CHAIN AND MANUFACTURING METHOD OF A CHAIN
    Publication number: 20180031075
    Abstract: A chain includes a plurality of inner links and a plurality of outer links. Each of the inner links includes a pair of inner plates each having a bush hole and a bush. The bush includes both end portions which are press-fitted into bush holes of the pair of the inner plates. Each of the outer links includes a pair of outer plates and a pin. A diametric dimension in a pitch direction of an inner diametric surface of the bush is constant along an entire axial length of the bush. A diametric dimension in a height direction of the inner diametric surface at each of the both end portions of the bush is smaller than a diametric dimension in the height direction of the inner diametric surface at an intermediate part of the bush located between the pair of inner plates.
    Type: Application
    Filed: July 6, 2017
    Publication date: February 1, 2018
    Inventors: Motoki TANAKA, Yurie KOAMI, Hiroki NAKAGAWA, Yuma OSAKA