Patents by Inventor Akira Sugahara

Akira Sugahara 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: 11180405
    Abstract: Provided is a sheet glass production process for properly producing sheet glass having a convex shape in section in a width direction orthogonal to the advancing direction of a glass ribbon. A glass ribbon G2 advancing on molten metal 22 is heated so as to have both edge portions G2B heated more intensely than a central portion G2A in a width direction thereof in an upstream zone of the molten metal bath, and a plurality of rolls 23 are rotated in contact with both edge portions G2B of the glass ribbon G2 such that upstream rolls 23A in an advancing direction F1 have a lower peripheral speed than downstream rolls 23B in the advancing direction.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: November 23, 2021
    Assignee: AGC Inc.
    Inventors: Takamitsu Yamato, Kouhei Sunaga, Akira Hasegawa, Akira Sugahara
  • Publication number: 20200207655
    Abstract: Provided is a sheet glass production process for properly producing sheet glass having a convex shape in section in a width direction orthogonal to the advancing direction of a glass ribbon. A glass ribbon G2 advancing on molten metal 22 is heated so as to have both edge portions G2B heated more intensely than a central portion G2A in a width direction thereof in an upstream zone of the molten metal bath, and a plurality of rolls 23 are rotated in contact with both edge portions G2B of the glass ribbon G2 such that upstream rolls 23A in an advancing direction F1 have a lower peripheral speed than downstream rolls 23B in the advancing direction.
    Type: Application
    Filed: March 10, 2020
    Publication date: July 2, 2020
    Applicant: Asahi Glass Company, Limited
    Inventors: Takamitsu YAMATO, Kouhei Sunaga, Akira Hasegawa, Akira Sugahara
  • Patent number: 10633277
    Abstract: Provided is a sheet glass production process for properly producing sheet glass having a convex shape in section in a width direction orthogonal to the advancing direction of a glass ribbon. A glass ribbon G2 advancing on molten metal 22 is heated so as to have both edge portions G2B heated more intensely than a central portion G2A in a width direction thereof in an upstream zone of the molten metal bath, and a plurality of rolls 23 are rotated in contact with both edge portions G2B of the glass ribbon G2 such that upstream rolls 23A in an advancing direction F1 have a lower peripheral speed than downstream rolls 23B in the advancing direction.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: April 28, 2020
    Assignee: AGC Inc.
    Inventors: Takamitsu Yamato, Kouhei Sunaga, Akira Hasegawa, Akira Sugahara
  • Patent number: 10059616
    Abstract: A shape measuring device includes: a predetermined pattern; an image pick-up section that captures reflected images of the predetermined pattern on the front face and back face of a transparent measurement object; a calculating section that calculates an inclination angle of at least the front face or the back face from the reflected images; and a determining section that determines a shape of at least the front face or the back face. The predetermined pattern includes a plurality of elements, and one end and the other end of each element of the plurality of elements, which are formed in a direction perpendicular to the extension direction, are deviated from each other in the extension direction.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: August 28, 2018
    Assignee: ASAHI GLASS COMPANY, LIMITED
    Inventors: Kimiaki Ohto, Akira Sugahara, Yusuke Arita, Minoru Ikenota
  • Publication number: 20170334759
    Abstract: Provided is a sheet glass production process for properly producing sheet glass having a convex shape in section in a width direction orthogonal to the advancing direction of a glass ribbon. A glass ribbon G2 advancing on molten metal 22 is heated so as to have both edge portions G2B heated more intensely than a central portion G2A in a width direction thereof in an upstream zone of the molten metal bath, and a plurality of rolls 23 are rotated in contact with both edge portions G2B of the glass ribbon G2 such that upstream rolls 23A in an advancing direction F1 have a lower peripheral speed than downstream rolls 23B in the advancing direction.
    Type: Application
    Filed: July 17, 2017
    Publication date: November 23, 2017
    Applicant: Asahi Glass Company, Limited
    Inventors: Takamitsu Yamato, Kouhei Sunaga, Akira Hasegawa, Akira Sugahara
  • Publication number: 20160297704
    Abstract: A shape measuring device includes: a predetermined pattern; an image pick-up section that captures reflected images of the predetermined pattern on the front face and back face of a transparent measurement object; a calculating section that calculates an inclination angle of at least the front face or the back face from the reflected images; and a determining section that determines a shape of at least the front face or the back face. The predetermined pattern includes a plurality of elements, and one end and the other end of each element of the plurality of elements, which are formed in a direction perpendicular to the extension direction, are deviated from each other in the extension direction.
    Type: Application
    Filed: June 21, 2016
    Publication date: October 13, 2016
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Kimiaki OHTO, Akira SUGAHARA, Yusuke ARITA, Minoru IKENOTA
  • Patent number: 8607589
    Abstract: A method and an apparatus for annealing a glass sheet, which can sufficiently reduce I/T formed in the glass sheet, are provided. In the method for annealing a glass sheet G of the present invention, in a state that a heated and bent glass sheet G is placed on a forming mold 16, first, a region of the glass sheet G to be lifted up is cooled by cooling devices 20, 22, to make the temperature of the region to be lifted up to be a temperature of at most the strain point. Next, in this state, a lift-up member 36 is operated to lift up the region of the glass sheet G to be lifted up, by rods 38, to separate the glass sheet G from the forming mold 16.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: December 17, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Hiroshi Yamakawa, Akira Sugahara, Yasumasa Kato
  • Patent number: 8518544
    Abstract: A glass sheet for a laminated glass to be fit into a frame of an automobile in a flash-mount structure, that is a glass sheet having a good strength, is provided. In the glass sheet of the present invention, the maximum value of the plane compressive stress on the edge of the glass sheet is at least 10 MPa and at most 18 MPa, and the maximum value of the plane compressive stress inside from the edge of the glass sheet is at most 2.4 MPa.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: August 27, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Yasumasa Kato, Akira Sugahara
  • Patent number: 8418502
    Abstract: The present invention relates to a heating apparatus for glass-sheet-forming, which prevents formation of a heater distortion in a portion of a glass sheet facing to a temperature-distributing heat shield.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: April 16, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Tatsuo Yajima, Akira Sugahara, Hiroshi Yamakawa, Akio Imaichi
  • Publication number: 20120295072
    Abstract: A glass sheet for a laminated glass to be fit into a frame of an automobile in a flash-mount structure, that is a glass sheet having a good strength, is provided. In the glass sheet of the present invention, the maximum value of the plane compressive stress on the edge of the glass sheet is at least 10 MPa and at most 18 MPa, and the maximum value of the plane compressive stress inside from the edge of the glass sheet is at most 2.4 MPa.
    Type: Application
    Filed: August 3, 2012
    Publication date: November 22, 2012
    Applicant: Asahi Glass Company, Limited
    Inventors: Yasumasa Kato, Akira Sugahara
  • Publication number: 20120291490
    Abstract: A method and an apparatus for annealing a glass sheet, which can sufficiently reduce ITT formed in the glass sheet, are provided. In the method for annealing a glass sheet G of the present invention, in a state that a heated and bent glass sheet G is placed on a forming mold 16, first, a region of the glass sheet G to be lifted up is cooled by cooling devices 20, 22, to make the temperature of the region to be lifted up to be a temperature of at most the strain point. Next, in this state, a lift-up member 36 is operated to lift up the region of the glass sheet G to be lifted up, by rods 38, 38 . . . , to separate the glass sheet G from the forming mold 16.
    Type: Application
    Filed: July 31, 2012
    Publication date: November 22, 2012
    Applicant: Asahi Glass Company, Limited
    Inventors: Hiroshi YAMAKAWA, Akira SUGAHARA, Yasumasa KATO
  • Publication number: 20100257900
    Abstract: The present invention relates to a heating apparatus for glass-sheet-forming, which prevents formation of a heater distortion in a portion of a glass sheet facing to a temperature-distributing heat shield.
    Type: Application
    Filed: June 28, 2010
    Publication date: October 14, 2010
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Tatsuo YAJIMA, Akira Sugahara, Hiroshi Yamakawa, Akio Imaichi