Patents by Inventor Fujio Yamagishi

Fujio Yamagishi 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).

  • Artificial teeth for molars
    Patent number: 4997373
    Abstract: An artificial tooth for molars is of a double structure comprising an occlusal region replaceable by a material which is more durable than a synthetic resin and is selected from the group consisting of a metal, a ceramic, a composite resin and an amalgam, and a bottom region. The present artificial tooth may further include a junction region having a maximum thickness of 0.05 to 3.0 mm, which serves to make a bond between the occlusal and bottom regions of the artificial tooth.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: March 5, 1991
    Assignee: G-C Toshi Kogyo Corporation
    Inventors: Yoshinobu Tanaka, Akira Hasegawa, Fujio Yamagishi
  • Tuning pin
    Patent number: 4961361
    Abstract: A tuning pin having a threaded portion is provided with grooves formed in the direction substantially perpendicular to a screw winding direction of the threaded portion. In accordance with another embodiment, the pitch of the screw threads varies on at least part of the threaded portion.
    Type: Grant
    Filed: February 1, 1989
    Date of Patent: October 9, 1990
    Assignee: Kabushiki, Kaisha Kawa, Gakki Seisakusho
    Inventors: Fujio Yamagishi, Hirohiko Miura
  • Measuring tool for the selection of artificial teeth
    Patent number: 4797096
    Abstract: A measuring tool for the selection of artificial teeth includes a substrate on which at least the full-scale mesiodistal highest position of contour of artificial teeth is indicated with the product classification mark thereof. The substrate is provided on the predetermined positions with a scale for determining the average condyle head at an interval of 13 mm and a scale for judging an angle that the occlusal surface makes with the interalveolar ridge line.
    Type: Grant
    Filed: January 14, 1987
    Date of Patent: January 10, 1989
    Assignee: G-C Toshi Kogyo Corporation
    Inventors: Toshio Ito, Takashi Miwa, Fujio Yamagishi