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公开(公告)号：US20220127191A1
公开(公告)日：2022-04-28
申请号：US17646793
申请日：2022-01-03
Applicant: AGC Inc.
Inventor： Izuru KASHIMA , Yusuke FUJIWARA
IPC: C03C27/06 , C03B23/023 , B32B7/08 , B32B3/26 , B32B17/06
Abstract: A glass substrate includes a thin portion having a first surface and a second surface opposed to the first surface, a thick portion having a first surface and a second surface opposed to the first surface and having a sheet thickness t3 that is larger than a sheet thickness t2 of the thin portion, a connection portion having a first connection surface and a second connection surface, the first connection surface connecting the first surface of the thin portion to the first surface of the thick portion, the second connection surface connecting the second surface of the thin portion to the second surface of the thick portion. The first connection surface has a curvature radius of more than or equal to 400 μm.
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公开(公告)号：US20230278916A1
公开(公告)日：2023-09-07
申请号：US18316524
申请日：2023-05-12
Applicant: AGC Inc.
Inventor： Kenji IMAKITA , Suguru MURAYAMA , Izuru KASHIMA , Kazuki KANEHARA
Abstract: The present invention relates to a chemically strengthened glass satisfying A1 [MPa] of 600 or more, A2 [MPa] of 50 or more, B1 [μm] of 6 or less, B2 [μm] of 10% or more of t [μm], C [MPa] of −30 or less, and A1/B1 [MPa/μm] of 100 or more when the chemically strengthened glass has a thickness t [μm] and a profile of a stress value [MPa] at a depth×[μm] from a glass surface is approximated by an error least-squares method in a region of 0 A2 and B1
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公开(公告)号：US20230122091A1
公开(公告)日：2023-04-20
申请号：US18066488
申请日：2022-12-15
Applicant: AGC Inc.
Inventor： Izuru KASHIMA , Yuji IMOTO
Abstract: A glass structure includes: a glass substrate that includes a thick portion and a thin portion thinner than the thick portion; and a filler that covers a step surface formed by difference in height between the thick portion and the thin portion. A refractive index difference at a wavelength of 555 nm between the glass substrate and the filler is 0.008 or less in an absolute value. A refractive index difference at a wavelength of 507 nm between the glass substrate and the filler is 0.008 or less in an absolute value.
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公开(公告)号：US20220185112A1
公开(公告)日：2022-06-16
申请号：US17652968
申请日：2022-03-01
Applicant: AGC Inc.
Inventor： Izuru KASHIMA , Yusuke FUJIWARA , Hitoshi MISHIRO
Abstract: A glass substrate unit includes a glass substrate and a glass deformation device for deforming the glass substrate. The glass substrate includes a thin portion and a thick portion, the thin portion having a first main surface and a second main surface opposite to the first main surface, the thick portion having a first main surface and a second main surface opposite to the first main surface and having a sheet thickness larger than a sheet thickness of the thin portion. The glass deformation device deforms the glass substrate by moving one of the thin portion and the thick portion.
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公开(公告)号：US20220004230A1
公开(公告)日：2022-01-06
申请号：US17476956
申请日：2021-09-16
Applicant: AGC INC.
Inventor： Izuru KASHIMA , Yusuke FUJIWARA
IPC: G06F1/16
Abstract: The present invention relates to a chemically strengthened glass including a first principal surface and a second principal surface which is on an opposite side of the first principal surface, and having a thickness of 0.30 mm or less, in which the chemically strengthened glass has a bent shape in which the first principal surface is a protrudent surface and the second principal surface is a recessed surface, and in which when the chemically strengthened glass is placed on a horizontal surface with the first principal surface facing downward, and no external force other than gravity acts on the chemically strengthened glass, part of the first principal surface is not in contact with the horizontal surface.
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Patent Agency Ranking
公开(公告)号：US20230391666A1
公开(公告)日：2023-12-07
申请号：US18454228
申请日：2023-08-23
Applicant: AGC Inc.
Inventor： Kaname SEKIYA , Izuru KASHIMA
CPC classification number: C03C21/002 , C03C3/095 , C03C3/097 , C03C10/0027
Abstract: The present invention relate to a chemically strengthened glass manufacturing method for obtaining a chemically strengthened glass by performing an ion exchange treatment on a glass for chemical strengthening having a CTA value of x (MPa) obtained by Equation (1), the method including: a first ion exchange treatment of bringing a first molten salt composition into contact with the glass for chemical strengthening so that a CTave value, which is obtained by Equation (2), of the glass for chemical strengthening exceeds x (MPa); and a second ion exchange treatment, after the first ion exchange treatment, of bringing the glass for chemical strengthening into contact with a second molten salt composition having a component ratio different from a composition ratio of the first molten salt composition so that the CTave value of the glass for chemical strengthening is less than x (MPa).
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公开(公告)号：US20220204400A1
公开(公告)日：2022-06-30
申请号：US17692335
申请日：2022-03-11
Applicant: AGC Inc.
Inventor： Kenji IMAKITA , Suguru MURAYAMA , Izuru KASHIMA , Kazuki KANEHARA
Abstract: The present invention relates to a chemically strengthened glass satisfying A1 [MPa] of 600 or more, A2 [MPa] of 50 or more, B1 [μm] of 6 or less, B2 [μm] of 10% or more of t [μm], C [MPa] of −30 or less, and A1/B1 [MPa/μm] of 100 or more when the chemically strengthened glass has a thickness t [μm] and a profile of a stress value [MPa] at a depth x [μm] from a glass surface is approximated by an error least-squares method in a region of 0 A2 and B1
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公开(公告)号：US20220009830A1
公开(公告)日：2022-01-13
申请号：US17487421
申请日：2021-09-28
Applicant: AGC INC.
Inventor： Izuru KASHIMA , Kaname SEKIYA , Akio SHIZUKAI , Yositeru IKEDA , Shogo SUEDA
Abstract: The present invention relates to a method for producing a chemically strengthened glass, the method including, performing a chemical strengthening treatment including the following steps (1) to (3) to a glass having a specific composition, (1) a step of bringing the glass into contact with an inorganic salt composition including 70 mass % or more of potassium nitrate to perform ion exchange; (2) a step of bringing the glass having been ion-exchanged in step (1) into contact with an inorganic salt composition including 50 mass % or more of sodium nitrate to perform ion exchange; and (3) a step of bringing the glass having been ion-exchanged in step (2) into contact with an inorganic salt composition including 70 mass % or more of potassium nitrate to perform ion exchange.
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公开(公告)号：US20240166560A1
公开(公告)日：2024-05-23
申请号：US18426403
申请日：2024-01-30
Applicant: AGC Inc.
Inventor： Izuru KASHIMA , Yusuke FUJIWARA
IPC: C03C27/06 , B32B3/26 , B32B7/08 , B32B17/06 , C03B23/023
CPC classification number: C03C27/06 , B32B3/26 , B32B7/08 , B32B17/06 , C03B23/023 , B32B2457/20 , B32B2605/00
Abstract: A glass substrate includes a thin portion having a first surface and a second surface opposed to the first surface, a thick portion having a first surface and a second surface opposed to the first surface and having a sheet thickness t3 that is larger than a sheet thickness t2 of the thin portion, a connection portion having a first connection surface and a second connection surface, the first connection surface connecting the first surface of the thin portion to the first surface of the thick portion, the second connection surface connecting the second surface of the thin portion to the second surface of the thick portion. The first connection surface has a curvature radius of more than or equal to 400 μm.
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公开(公告)号：US20220274868A1
公开(公告)日：2022-09-01
申请号：US17652553
申请日：2022-02-25
Applicant: AGC INC.
Inventor： Kaname SEKIYA , Izuru KASHIMA , Hiroki TAKAHASHI
Abstract: The present invention relates to a manufacturing method for a chemically strengthened glass, the method including: performing a first ion exchange by immersing a glass for chemical strengthening containing first alkali metal ions in a first molten salt composition containing second alkali metal ions; after the first ion exchange, performing a second ion exchange by immersing the chemically strengthened glass obtained after the first ion exchange in a second molten salt composition containing the first metal ions and third alkali metal ions; continuously using the first molten salt composition after being used for the first ion exchange; and continuously using a second molten salt composition after being used for the second ion exchange, in which: a concentration of the second molten salt composition is controlled by adding the first alkali metal ions to the second molten salt composition and a resulting second molten salt composition is used continuously.
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