Patents Assigned to Katumi Takahashi
  • Auxiliary instrument for dental treatment
    Patent number: 4319876
    Abstract: An auxiliary instrument for dental treatment comprises a forked mandible retaining plate abutting on the face under the mandible and a protruding mandible head retaining means provided in the vicinity of the forked base end portion of said mandible retaining plate and having a through opening into which the head of mandible is inserted. A flexible substance is placed on the surface of said mandible retaining plate as well as the inner peripheral surface of said mandible head retaining means and can be removed freely as occasion demands.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: March 16, 1982
    Assignee: Katumi Takahashi
    Inventor: Hiroshi Muraoka