Patents by Inventor Rentaro Naniwa

Rentaro Naniwa 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).

  • Structural reinforcement system and reinforcing method at joint between structural members
    Patent number: 6324805
    Abstract: In a structural reinforcement system of the present invention, a reinforcing material of a bundled fibrous material is positioned spanning a joint between structural members, and then opposite end sections of the reinforcing material are inserted into apertures formed in each of the structural members and fixed in place by anchoring with an adhesive. An angle formed between a center line of each aperture and a line connecting openings of the apertures should preferably ranges between 135° to 160°. The reinforcing material is preferably a bundle of fibers selected from the group consisting of aramid fiber, nylon fiber, carbon fiber, glass fiber, and steel fiber, and the bundle of fibers is impregnated with a resin.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: December 4, 2001
    Assignees: Fukuvi Chemical Industry Co., Ltd.
    Inventor: Rentaro Naniwa