Patents by Inventor Masayoshi Takubo

Masayoshi Takubo 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).

  • Root canal sealer
    Patent number: 4657592
    Abstract: A root canal sealer containing medium chain fatty acid triglyceride instead of eugenol, the sealer further contains calcium hydroxide or calcium oxide and bees wax, the blending ratio of the medium chain fatty acid triglyceride and bees wax is 5:95-30:70 by weight, the sealer being applied to an apical foramen together with gutta percha cone using ultra sonic technology, the sealer enables to employ the calcium ingredient in a desired ratio and the solidifying of the sealer may be accelerated.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: April 14, 1987
    Assignees: Masayoshi Takubo, Michihiro Takubo
    Inventor: Masayoshi Takubo