Patents by Inventor Kiyota Miyazaki

Kiyota Miyazaki 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 tempering glass sheet, and apparatus therefor
    Patent number: 8769990
    Abstract: The method for tempering a glass sheet of the present invention comprises a heating step of heating the glass sheet to a temperature close to the softening point of the glass sheet, a quenching step of blowing a cooling medium to both surfaces in the thickness direction of the heated glass to cool it, and a pre-quenching step between the heating step and the quenching step and further has an internal heating substep of selectively heating the vicinity of the center portion in the thickness direction of the glass sheet at least in the quenching step, to create such a state that when the temperature at the center portion in the thickness direction of the glass sheet is close to the tempering point, the temperature at the surfaces in the thickness direction of the glass sheet is not higher than the annealing point.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: July 8, 2014
    Assignee: Asahi Glass Company, Limited
    Inventors: Isao Saito, Junji Hori, Kiyota Miyazaki, Tomohiro Suwa, Yasumasa Kato, Satoshi Yoshida, Kazushige Yoda