Patents by Inventor Tomiyo Maeda

Tomiyo Maeda 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: 5236447
    Abstract: An artificial tubular organ composed of a tubular supporting frame made of a plastic material which is provided on at least one surface therefore with a medical prosthetic material. The supporting frame is composed of a plurality of ring portions arranged on an axis, and a plurality of pairs of connecting portions extending between adjacent two ring portions so as to connect them to each other, every other pair of the connecting portions being diametrically arranged on the ring portions, the remaining pairs of the connecting portions being arranged such that a plane containing their center lines is perpendicular to a plane containing the center lines of pairs of diametrically arranged connecting portions. The medical prosthetic material may be a woven fabric, a knitted fabric, a nonwoven fabric, or a combination thereof. Preferred fabric includes absorbable macromolecular yarns and nonabsorbable macromolecular yarns.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: August 17, 1993
    Assignee: Nissho Corporation
    Inventors: Yoshihiko Kubo, Takashi Arai, Susumu Nakajima, Tomiyo Maeda, Hajime Tsujikawa