Patents by Inventor Yasunori MOTOMURA

Yasunori MOTOMURA 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: 10900203
    Abstract: An attachment pin assembly includes a first pin body, a second pin body, and a bolt for fastening and fixing the first pin body and the second pin body to each other. A tip end of the first pin body is formed in a planar shape across a substantially entire area excluding a first bolt hole extending in an axial direction. A tip end of the second pin body is formed in a planar shape across a substantially entire area excluding a second bolt hole extending in the axial direction. The first pin body and the second pin body are fastened and fixed with the bolt in a state in which the planar tip ends contact each other.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: January 26, 2021
    Assignee: SEIKI KOEI CORPORATION
    Inventor: Yasunori Motomura
  • Patent number: 10767349
    Abstract: A bucket tip end cover 1 includes multiple cover members 10, 20 arranged at a tip end of a bucket 5 between adjacent ones of adaptors 7. The multiple cover members 10, 20 are fixed to the bucket 5 in a state in which an entire width in an arraying direction A of the adaptors 7 is adjusted in such a manner that each cover member 10, 20 relatively moves in the arraying direction A.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: September 8, 2020
    Assignee: SEIKI KOEI CORPORATION
    Inventor: Yasunori Motomura
  • Patent number: 10767350
    Abstract: An attachment pin assembly includes a first pin body, a second pin body, and a bolt for fastening and fixing the first pin body and the second pin body to each other. The first pin body has a first shaft portion and a flange portion formed at an end of the first shaft portion. The second pin body has a second shaft portion. The bolt is inserted into the flange portion and the first shaft portion of the first pin body and the second shaft portion of the second pin body. Moreover, a housing recessed portion for housing a head of the bolt is formed at the first pin body, and a bottom surface of the housing recessed portion is arranged on a tip end side of the first shaft portion as a second pin body side with respect to a seating surface of the flange portion.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: September 8, 2020
    Assignee: SEIKI KOEI CORPORATION
    Inventor: Yasunori Motomura
  • Publication number: 20200032491
    Abstract: A bucket tip end cover 1 includes multiple cover members 10, 20 arranged at a tip end of a bucket 5 between adjacent ones of adaptors 7. The multiple cover members 10, 20 are fixed to the bucket 5 in a state in which an entire width in an arraying direction A of the adaptors 7 is adjusted in such a manner that each cover member 10, 20 relatively moves in the arraying direction A.
    Type: Application
    Filed: December 19, 2018
    Publication date: January 30, 2020
    Inventor: Yasunori MOTOMURA
  • Publication number: 20190234052
    Abstract: An attachment pin assembly includes a first pin body, a second pin body, and a bolt for fastening and fixing the first pin body and the second pin body to each other. A tip end of the first pin body is formed in a planar shape across a substantially entire area excluding a first bolt hole extending in an axial direction. A tip end of the second pin body is formed in a planar shape across a substantially entire area excluding a second bolt hole extending in the axial direction. The first pin body and the second pin body are fastened and fixed with the bolt in a state in which the planar tip ends contact each other.
    Type: Application
    Filed: December 19, 2018
    Publication date: August 1, 2019
    Inventor: Yasunori MOTOMURA
  • Publication number: 20190234051
    Abstract: An attachment pin assembly includes a first pin body, a second pin body, and a bolt for fastening and fixing the first pin body and the second pin body to each other. The first pin body has a first shaft portion and a flange portion formed at an end of the first shaft portion. The second pin body has a second shaft portion. The bolt is inserted into the flange portion and the first shaft portion of the first pin body and the second shaft portion of the second pin body. Moreover, a housing recessed portion for housing a head of the bolt is formed at the first pin body, and a bottom surface of the housing recessed portion is arranged on a tip end side of the first shaft portion as a second pin body side with respect to a seating surface of the flange portion.
    Type: Application
    Filed: December 19, 2018
    Publication date: August 1, 2019
    Inventor: Yasunori MOTOMURA
  • Patent number: 10221543
    Abstract: An attachment pin assembly includes a pin body to be inserted into first through-holes of a drilling tool and a second through-hole of an adaptor, the first and second through-holes being arranged eccentrically with respect to each other; a bush portion provided on one end side of the pin body; a detachment prevention member of the bush portion screwed to one end of the pin body; and a stopper portion provided on the other end side of the pin body and configured such that a side surface portion arranged on the outside of the pin body in a radial direction thereof in the first through-hole is locked on an inner wall surface of the tooth forming the first through-hole to stop rotation of the pin body.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: March 5, 2019
    Assignee: SEIKI KOEI CORPORATION
    Inventor: Yasunori Motomura
  • Publication number: 20180163377
    Abstract: An attachment pin assembly includes a pin body to be inserted into first through-holes of a drilling tool and a second through-hole of an adaptor, the first and second through-holes being arranged eccentrically with respect to each other; a bush portion provided on one end side of the pin body; a detachment prevention member of the bush portion screwed to one end of the pin body; and a stopper portion provided on the other end side of the pin body and configured such that a side surface portion arranged on the outside of the pin body in a radial direction thereof in the first through-hole is locked on an inner wall surface of the tooth forming the first through-hole to stop rotation of the pin body.
    Type: Application
    Filed: December 19, 2016
    Publication date: June 14, 2018
    Inventor: Yasunori MOTOMURA