Patents by Inventor Keizi Fuzioka

Keizi Fuzioka 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: 4336833
    Abstract: A tubeless pneumatic tire comprising a body made entirely of an elastic material and cords embedded in the body and having a length not extending from bead to bead. The opposite ends of the cords are disposed in a pair of annular projections formed on the inner surface of the tire and centered about the axis of rotation of the tire. An elastic deformable portion is provided between each of the beads and the corresponding ends of the cords.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: June 29, 1982
    Assignee: The Ohtsu Tire & Rubber Co., Ltd.
    Inventors: Keizi Fuzioka, Masami Shinomiya
  • Patent number: 4286942
    Abstract: A cavity having the shape of the tire to be produced is defined by a mold comprising an upper element, a lower element and a core element which are fittable to and releasable from one another. The core mold element comprises three divided segments, i.e., a segment for forming the inner surface of the tire tread, and a pair of segments for forming the inner surfaces of the tire sidewalls including tire beads. The core mold element has two pairs of nipping portions for holding the opposite ends of tire cords placed on the tread inner surface forming segment. The nipping portions in each pair are movable toward or away from each other. The tire cords nipped at their opposite ends by the core mold element are held in place within the cavity by the cooperation of the upper and lower mold elements, and a molding material composed of rubber or an equivalently elastic material is filled into the cavity and cured.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: September 1, 1981
    Assignee: The Ohtsu Tire & Rubber Co., Ltd.
    Inventors: Keizi Fuzioka, Masami Shinomiya
  • Patent number: D293562
    Type: Grant
    Filed: March 7, 1985
    Date of Patent: January 5, 1988
    Assignee: The Ohtsu Tire & Rubber Co., Ltd.
    Inventors: Keizi Fuzioka, Hitoo Umemoto
  • Patent number: D293563
    Type: Grant
    Filed: March 7, 1985
    Date of Patent: January 5, 1988
    Assignee: The Ohtsu Tire & Rubber Co.
    Inventors: Keizi Fuzioka, Hitoo Umemoto