Patents by Inventor Tohru Tokoro

Tohru Tokoro 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).

  • Cell-associated glucosyltransferase, an antibody thereto, and a dental caries prophylactic composition containing said antibody as an effective component
    Patent number: 5439680
    Abstract: Cell-associated glucosyltransferase of S. mutans serotypes c, e or f producing dental caries was isolated and purified and its characteristics as an enzyme were revealed. Furthermore, an antibody against said enzyme was prepared from eggs of the hens immunized with said enzyme. Since this antibody effectively prevents adherence of the aforementioned S. mutans to tooth surfaces, it is useful as an effective component for a dental caries prophylactic composition.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: August 8, 1995
    Assignees: Kanebo Ltd., Ghen Corporation
    Inventors: Toshio Horikoshi, Junichiro Hiraoka, Isamu Fujita, Tohru Tokoro, Yoshikatsu Kodama, Hideaki Yokoyama
  • Cell-associated glucosyltransferase from Streptococcus mutans serotype, c, e or f
    Patent number: 5281524
    Abstract: Cell-associated glycosyltranferase of S. mutans serotypes c, e or f producing dental caries was isolated and purified and its characteristics as an enzyme were revealed. Furthermore, an antibody against the enzyme was prepared from eggs of the hens immunized with the enzyme. Since this antibody effectively prevents adherence of the aforementioned S. mutans to tooth surfaces, it is useful as an effective component for a dental caries prophylactic composition.
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: January 25, 1994
    Assignees: Kanebo, Ltd., Ghen Corporation
    Inventors: Toshio Horikoshi, Junichiro Hiraoka, Isamu Fujita, Tohru Tokoro, Yoshikatsu Kodama, Hideaki Yokoyama