Patents Assigned to Toyo Seiyaku Kasei Co., Ltd.
  • 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