Patents by Inventor Hirohisa Okuda

Hirohisa Okuda 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).

  • Dental composition for preventing and inhibiting dental caries
    Patent number: 4252788
    Abstract: A dental composition comprising about 0.1 to 5% by weight (as molybdenum) of a molybdate compound based on the total weight of the composition and a pharmaceutically acceptable carrier or diluent, prevents and inhibits dental caries. The composition exhibits its anticarious effect by inhibiting both digestion of the soft tissue in teeth with a protease and decalcification of the hard tissue in teeth with an acid.
    Type: Grant
    Filed: May 15, 1979
    Date of Patent: February 24, 1981
    Assignee: Toyo Seiyaku Kasei Co., Ltd.
    Inventors: Hiroji Yamamoto, Hirohisa Okuda
  • Haloplatinate dental composition for preventing and inhibiting dental caries
    Patent number: 4200626
    Abstract: A dental composition comprising, as an essential ingredient, water-soluble haloplatinate and a pharmaceutical carrier or diluent, prevents and inhibits dental caries. The composition exhibits its anticarious effect by inhibiting both digestion of the soft tissue in dentin with a protease and decalcification of the hard tissue in dentin with an acid.
    Type: Grant
    Filed: September 15, 1978
    Date of Patent: April 29, 1980
    Assignee: Toyo Seiyaku Kasei Co., Ltd.
    Inventors: Hirohisa Okuda, Nobutaka Hori