Patents by Inventor Masashi KASAJIMA
Masashi KASAJIMA 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).
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Patent number: 11021387Abstract: A manufacturing method for a laminated glass in which a plurality of glass plates are laminated, includes a first main forming step of heating a first glass plate to a first softening point or higher to perform a main forming; a second main forming step of heating a second glass plate to a second softening point or higher to perform the main forming; a first finish forming step of bending and forming the first glass plate into a desired shape; and a second finish forming step of bending and forming the second glass plate into a desired shape. The first and second main forming steps are performed by using a same forming die. A first condition for lowering a temperature of the first glass plate to below the first softening point and a second condition for the second glass plate are different from each other.Type: GrantFiled: November 19, 2015Date of Patent: June 1, 2021Assignee: AGC INC.Inventors: Takahiro Ishida, Masashi Kasajima, Tsuyoshi Otsuka, Raita Sugisaki, Yoshinobu Morita
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Patent number: 9957187Abstract: A brittle plate processing method includes having a first portion of a brittle plate supported flat on a flat part of a support member that supports a first surface of the brittle plate, pressing a cutter against a second surface of the brittle plate opposite to the first surface, and forming a scribe line in the second surface of the brittle plate by moving the cutter and the support member relative to each other. In pressing the cutter, the cutter is pressed to a predetermined position on a second portion of the brittle plate other than the first portion. When the cutter is pressed to the predetermined position on the second portion of the brittle plate, the shape of the brittle plate due to bending deformation is defined by a defining part of the support member.Type: GrantFiled: June 8, 2016Date of Patent: May 1, 2018Assignee: Ashi Glass Company, LimitedInventors: Takashi Yamamoto, Toshiyuki Ishibashi, Mitsuhiko Endo, Masashi Kasajima
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Publication number: 20170341970Abstract: A manufacturing method for a laminated glass in which a plurality of glass plates are laminated, includes a first main forming step of heating a first glass plate to a first softening point or higher to perform a main forming; a second main forming step of heating a second glass plate to a second softening point or higher to perform the main forming; a first finish forming step of bending and forming the first glass plate into a desired shape; and a second finish forming step of bending and forming the second glass plate into a desired shape. The first and second main forming steps are performed by using a same forming die. A first condition for lowering a temperature of the first glass plate to below the first softening point and a second condition for the second glass plate are different from each other.Type: ApplicationFiled: November 19, 2015Publication date: November 30, 2017Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Takahiro ISHIDA, Masashi KASAJIMA, Tsuyoshi OTSUKA, Raita SUGISAKI, Yoshinobu MORITA
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Patent number: 9822029Abstract: A method for processing a brittle plate includes a breaking step in which a pressing member for pressing a surface of the brittle plate and a support member for supporting a back face of the brittle plate are used to bend and deform the brittle plate and break the brittle plate along a score line formed on the surface of the brittle plate. The support member includes a flat portion that is arranged flat against one portion of the brittle plate to support the brittle plate, and a regulating portion that regulates a bending deformation shape of the brittle plate when the pressing member is pressed against a predetermined position of a remaining portion of the brittle plate. The breaking step includes breaking the brittle plate along the score line that is within the remaining portion of the brittle plate.Type: GrantFiled: June 14, 2016Date of Patent: November 21, 2017Assignee: Asahi Glass Company, LimitedInventors: Takashi Yamamoto, Toshiyuki Ishibashi, Mitsuhiko Endo, Masashi Kasajima
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Publication number: 20160280579Abstract: A method for processing a brittle plate includes a breaking step in which a pressing member for pressing a surface of the brittle plate and a support member for supporting a back face of the brittle plate are used to bend and deform the brittle plate and break the brittle plate along a score line formed on the surface of the brittle plate. The support member includes a flat portion that is arranged flat against one portion of the brittle plate to support the brittle plate, and a regulating portion that regulates a bending deformation shape of the brittle plate when the pressing member is pressed against a predetermined position of a remaining portion of the brittle plate. The breaking step includes breaking the brittle plate along the score line that is within the remaining portion of the brittle plate.Type: ApplicationFiled: June 14, 2016Publication date: September 29, 2016Applicant: Asahi Glass Company, LimitedInventors: Takashi YAMAMOTO, Toshiyuki ISHIBASHI, Mitsuhiko ENDO, Masashi KASAJIMA
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Publication number: 20160280578Abstract: A brittle plate processing method includes having a first portion of a brittle plate supported flat on a flat part of a support member that supports a first surface of the brittle plate, pressing a cutter against a second surface of the brittle plate opposite to the first surface, and forming a scribe line in the second surface of the brittle plate by moving the cutter and the support member relative to each other. In pressing the cutter, the cutter is pressed to a predetermined position on a second portion of the brittle plate other than the first portion. When the cutter is pressed to the predetermined position on the second portion of the brittle plate, the shape of the brittle plate due to bending deformation is defined by a defining part of the support member.Type: ApplicationFiled: June 8, 2016Publication date: September 29, 2016Applicant: Asahi Glass Company, LimitedInventors: Takashi YAMAMOTO, Toshiyuki ISHIBASHI, Mitsuhiko ENDO, Masashi KASAJIMA
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Patent number: 9375900Abstract: To provide laminated glass excellent in the quality and the cost, in which two glass plates differing in the plate thickness can easily be bent with good accuracy. Laminated glass 60 comprising a plurality of glass plates 12 and 14 bent into a predetermined shape, and an interlayer 40 interposed between the plurality of glass plates 12 and 14, at least two glass plates 12 and 14 among the plurality of glass plates 12 and 14 differing in the plate thickness, wherein the two glass plates 12 and 14 differing in the plate thickness have different glass compositions, and at an optional temperature between the annealing point and the softening point of the thick glass plate 12, the thick glass plate 12 has a lower viscosity than the thin glass plate 14.Type: GrantFiled: October 1, 2013Date of Patent: June 28, 2016Assignee: Asahi Glass Company, LimitedInventors: Masahiro Tsuchiya, Yasumasa Kato, Yutaka Kitajima, Masashi Kasajima, Shuichi Akada
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Publication number: 20150202854Abstract: A laminated glass production method includes bending multiple glass plates into a desired shape by heating the glass plates to near a softening point, stacking the bent glass plates in layers with an interlayer interposed therebetween, and forming laminated glass by bonding the glass plates and the interlayer stacked in layers by applying pressure. At least two of the glass plates composing the laminated glass have different thicknesses. Of the two glass plates having different thicknesses, the thicker glass plate has a lower viscosity than the thinner glass plates at a temperature between the annealing point and the softening point of the thicker glass plate. Forming the laminated glass includes forming an uneven temperature distribution on a principal surface of each of the glass plates.Type: ApplicationFiled: April 1, 2015Publication date: July 23, 2015Applicant: Asahi Glass Company, LimitedInventors: Masahiro TSUCHIYA, Yasumasa KATO, Yutaka KITAJIMA, Masashi KASAJIMA, Shuichi AKADA, Hiroshi YAMAKAWA, Junji TANAKA
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Publication number: 20140065374Abstract: To provide laminated glass excellent in the quality and the cost, in which two glass plates differing in the plate thickness can easily be bent with good accuracy. Laminated glass 60 comprising a plurality of glass plates 12 and 14 bent into a predetermined shape, and an interlayer 40 interposed between the plurality of glass plates 12 and 14, at least two glass plates 12 and 14 among the plurality of glass plates 12 and 14 differing in the plate thickness, wherein the two glass plates 12 and 14 differing in the plate thickness have different glass compositions, and at an optional temperature between the annealing point and the softening point of the thick glass plate 12, the thick glass plate 12 has a lower viscosity than the thin glass plate 14.Type: ApplicationFiled: October 1, 2013Publication date: March 6, 2014Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Masahiro TSUCHIYA, Yasumasa KATO, Yutaka KITAJIMA, Masashi KASAJIMA, Shuichi AKADA