Patents by Inventor Takuma Tokura

Takuma Tokura 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: 6106190
    Abstract: In a marine fender with a structure for fixing a pad to a fender frame, the pad has at least one concavity formed in a front surface thereof, and a pad hole piercing the pad from a bottom of the concavity. A bolt with a head is inserted from a front side of the pad through the pad and fender holes, and a nut is disposed at a rear side of the fender frame to engage the bolt to thereby fix the pad to the fender frame. A washer is interposed between the head of the bolt and the bottom of the concavity. In case the bolt is attached to the fender frame, the nut is disposed in the concavity of the pad to engage the bolt, and the washer is interposed between the nut and the bottom of the concavity. In either case, the washer is disposed in the concavity such that a rim of the washer engages an inner periphery of the concavity to prevent rotation with each other. The head of the bolt or nut is joined to the washer.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: August 22, 2000
    Assignee: Bridgestone Corporation
    Inventors: Masahiro Nakamura, Noboru Yamaguchi, Takuma Tokura
  • Patent number: 5779394
    Abstract: A quay side device for engaging a chain for a marine fender attached to a fitting face of a quaywall or another berthing installation comprises a pair of rigid plates separated in parallel to each other, a round hole formed in a protruding portion of the rigid plate from the quaywall, a support rod detachably inserted into the round holes between the protruding portions of the rigid plates, and a fixing member arranged in end portions of the rigid plates embedded in the quaywall.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: July 14, 1998
    Assignee: Bridgestone Corporation
    Inventors: Takuma Tokura, Hitoshi Akiyama