Patents Assigned to Takumitsu Hiro
  • Prototype of mouth piece
    Patent number: 5666974
    Abstract: This invention relates a prototype of a mouth piece characterized as having "H" shaped cross sectional view which is composed of an intermediate web member, outer wall and inner wall and can be loosely installed to dental arch of both maxilla teeth and mandibular teeth.
    Type: Grant
    Filed: April 30, 1996
    Date of Patent: September 16, 1997
    Assignees: Okamoto Industries, Inc., Takumitsu Hiro
    Inventors: Takumitsu Hiro, Akinori Watanabe