Patents by Inventor Torao Miyama

Torao Miyama 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).

  • Patent number: 6537360
    Abstract: A tooth coating composition comprises a component A including a reactive metallic oxide; and a component B of water, which are mixed with each other when using the tooth coating composition, wherein at least one of the component A and the component B comprises a polycarboxylic acids, a reaction retarder and a coating film-softening agent. Specifically, the reactive metallic oxide may be zinc oxide or the like, the polycarboxylic acid may be polyacrylic acid or the like, the reaction retarder may be calcium hydrogen phosphate or the like, and the coating film-softening agent may be polymethyl methacrylate or the like. The coated film formed from the tooth coating composition has a color approximate to the color of natural teeth, and causes little irritation to mouths. In addition, the coating film has high durability and easy removability after use, so that it can be easily used by ordinary consumers.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: March 25, 2003
    Assignee: Hanix Co., Ltd.
    Inventors: Torao Miyama, Takashi Matsumoto, Kaoruko Urai, Kichizo Tanaka, Kenji Inagaki, Harumi Aida
  • Publication number: 20010037750
    Abstract: A tooth coating composition comprises a component A including a reactive metallic oxide; and a component B of water, which are mixed with each other when using the tooth coating composition, wherein at least one of the component A and the component B comprises a polycarboxylic acids, a reaction retarder and a coating film-softening agent. Specifically, the reactive metallic oxide may be zinc oxide or the like, the polycarboxylic acid may be polyacrylic acid or the like, the reaction retarder may be calcium hydrogen phosphate or the like, and the coating film-softening agent may be polymethyl methacrylate or the like. The coated film formed from the tooth coating composition has a color approximate to the color of natural teeth, and causes little irritation to mouths. In addition, the coating film has high durability and easy removability after use, so that it can be easily used by ordinary consumers.
    Type: Application
    Filed: March 26, 2001
    Publication date: November 8, 2001
    Inventors: Torao Miyama, Takashi Matsumoto, Kaoruko Urai, Kichizo Tanaka, Kenji Inagaki, Harumi Aida