Patents by Inventor Tomohiro Suwa

Tomohiro Suwa 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
  • Method of positioning a glass plate using pivoting rollers
    Patent number: 7900477
    Abstract: There are the steps of conveying a glass plate by a roller conveyor including a plurality of rollers; and moving a roller in contact with the glass plate in conveyance to position the glass plate so as to conform a posture of the glass plate to a reference posture.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: March 8, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Ryo Kanno, Toshimitsu Sato, Takashi Hirotsu, Tomohiro Suwa, Isao Saito
  • Method for positioning a glass plate on rollers
    Patent number: 7712334
    Abstract: There are the steps of conveying a glass plate by a roller conveyor including a plurality of rollers; and moving a roller in contact with the glass plate in conveyance to position the glass plate so as to conform a posture of the glass plate to a reference posture.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: May 11, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Ryo Kanno, Toshimitsu Sato, Takashi Hirotsu, Tomohiro Suwa, Isao Saito
  • METHOD AND SYSTEM FOR POSITIONING A GLASS PLATE, AND METHOD AND SYSTEM FOR BENDING A GLASS PLATE
    Publication number: 20080060386
    Abstract: There are the steps of conveying a glass plate by a roller conveyor including a plurality of rollers; and moving a roller in contact with the glass plate in conveyance to position the glass plate so as to conform a posture of the glass plate to a reference posture.
    Type: Application
    Filed: October 26, 2007
    Publication date: March 13, 2008
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Ryo KANNO, Toshimitsu Sato, Takashi Hirotsu, Tomohiro Suwa, Isao Saito
  • Method and system for positioning a glass plate, and method and system for bending a glass plate
    Publication number: 20040007020
    Abstract: There are the steps of conveying a glass plate by a roller conveyor including a plurality of rollers; and moving a roller in contact with the glass plate in conveyance to position the glass plate so as to conform a posture of the glass plate to a reference posture.
    Type: Application
    Filed: June 23, 2003
    Publication date: January 15, 2004
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Ryou Kanno, Toshimitsu Sato, Takashi Hirotsu, Tomohiro Suwa, Isao Saito