Patents by Inventor Junichi Hiraizumi

Junichi Hiraizumi 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).

  • Centrifugal clutch
    Patent number: 4756396
    Abstract: A centrifugal clutch including a drive member, a plurality of intermediate members, a driven member and closing plates each having shape and weight conforming to a side wall of each intermediate member to provide dynamic balance for the clutch. When the drive member rotates sufficiently fast, the intermediate members move radially outward along respective parts of the drive member, against the bias of a peripherally extending spring held in place as to each intermediate member by the respective closing plate.
    Type: Grant
    Filed: May 12, 1987
    Date of Patent: July 12, 1988
    Assignee: Kioritz Corporation
    Inventors: Akira Nagashima, Junichi Hiraizumi
  • Air cleaner
    Patent number: 4594083
    Abstract: An air cleaner in which an end of a flexible air intake pipe is mounted on a receiving member sealingly surrounding an intake port of a carburetor, the other end of the air intake pipe is clamped by an end portion of an air intake pipe retainer engaging with a bottom opening of a case member, a retaining claw for engaging with a frame edge of the body is formed at a bottom portion of the case member and the bottom portion of the case member is fastened by a screw at a position remote from the retaining claw.
    Type: Grant
    Filed: February 13, 1985
    Date of Patent: June 10, 1986
    Assignee: Kioritz Corporation
    Inventor: Junichi Hiraizumi
  • Saw chain guide device for chain saw
    Patent number: H294
    Abstract: A saw chain guide device for a chain saw in which an end face of each of side plates disposed adjacent to a drive sprocket of the saw chain terminates extremely adjacent to a tooth tip circle of the drive sprocket of the saw chain, and an edge portion extending beyond the end face and along the tooth tip circle of the toothed sprocket is integrally formed with at least one of the side plates confronting outerside of the chain saw.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: July 7, 1987
    Assignee: Kioritz Corporation
    Inventors: Junichi Hiraizumi, Akira Nagashima