Patents by Inventor Takuya Yamato

Takuya Yamato 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).

  • Method for solidifying and sealing in a toxic substance with sulfur
    Patent number: 6547712
    Abstract: A method for manufacturing materials solidified with sulfur, comprising the steps of bringing the water content of a mixture of sulfur and a raw material to less than 3% by weight, heating and mixing the mixture of raw materials including molten sulfur at 119 to 159° C., to cause the sulfur to penetrate and encapsulate the raw material that is solid or liquid at the molecular level, thereby preparing a fluid mixture, and, if necessary, then molding the mixture into a desired shape or cooling it into a granular form.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: April 15, 2003
    Assignees: Ikari-Laboratory For Environmental Science Co., Ltd., Nishida Mining Co., Ltd., Tanaka Iron Works Co., Ltd.
    Inventors: Yoshikatsu Ikari, Takuya Yamato, Chujiro Nishida, Katsuyoshi Toyofuku, Toshiyuki Kokubu
  • Method for solidifying and sealing in a toxic substance with sulfur
    Patent number: 6083431
    Abstract: A method for manufacturing materials solidified with sulfur, comprising the steps of bringing the water content of a mixture of sulfur and a raw material to less than 3% by weight, heating and mixing the mixture of raw materials including molten sulfur at 119 to 159.degree. C., to cause the sulfur to penetrate and encapsulate the raw material that is solid or liquid at the molecular level, thereby preparing a fluid mixture, and, if necessary, then molding the mixture into a desired shape or cooling it into a granular form.
    Type: Grant
    Filed: December 2, 1997
    Date of Patent: July 4, 2000
    Assignees: Ikari-Laboratory for Environmental Science Co., Ltd., Nishida Mining Co., Ltd., Tanaka Iron Works Co., Ltd.
    Inventors: Yoshikatsu Ikari, Takuya Yamato, Chujiro Nishida, Katsuyoshi Toyofuku, Toshiyuki Kokubu