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1.发明公开公开(公告)号：US20230234885A1
公开(公告)日：2023-07-27
申请号：US18185035
申请日：2023-03-16
Applicant: AGC Inc.
Inventor： Kenji IMAKITA , Suguru MURAYAMA
CPC classification number: C03C21/002 , C03C3/085 , C03C3/087 , C03C3/091 , C03C4/20 , C03C2204/00
Abstract: A plate-like chemically strengthened glass having a compression stress layer on the surface of the glass, wherein the compressive stress value (CS0) at the glass surface of is 500 MPa or more, the plate thickness (t) is 400 µm or more, the compressive stress depth of layer (DOL) is (t × 0.15) µm or more, the compressive stress values (CS1) and (CS2) when the depth from the glass surface is ¼ and ½, respectively, are 50 MPa or more, m1 expressed by {m1 = (CS1 - CS2/(DOL/4 - DOL/2)} is -1.5 MPa/µm or more, m2 expressed by {m2 = (CS2/(DOL/2 - DOL)} is 0 MPa/µm or less, and m2 is less than m1.
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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：US20200039876A1
公开(公告)日：2020-02-06
申请号：US16585200
申请日：2019-09-27
Applicant: AGC Inc.
Inventor： Kenji IMAKITA , Suguru Murayama , lzuru 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：US20220289625A1
公开(公告)日：2022-09-15
申请号：US17805031
申请日：2022-06-02
Applicant: AGC Inc.
Inventor： Kazuki KANEHARA , Kenji IMAKITA
Abstract: The present invention relates to a chemically strengthened glass article in which a compressive stress value on a first surface is 400 MPa or more, with a glass thickness of t (μm), the compressive stress value at the depth DB where the compressive stress value is maximum in the range where the depth from the first surface is (0.05×t)-(0.15×t) μm is larger than the compressive stress value at the depth DA where the compressive stress value is minimum in the range from the first surface to the depth DB, the tensile stress value at a depth (0.5×t) μm from the first surface is 125 MPa or less, and a compressive stress layer depth is (0.23×t) μm or more.
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公开(公告)号：US20220135466A1
公开(公告)日：2022-05-05
申请号：US17573382
申请日：2022-01-11
Applicant: AGC Inc.
Inventor： Eriko MAEDA , Kenji IMAKITA , Kazuki KANEHARA , Akihisa MINOWA
Abstract: The present invention relates to a glass including, in mole percentage on an oxide basis: 60-75% of SiO2; 8-20% of Al2O3; 5-16% of Li2O; and 2-15% of one or more kinds of Na2O and K2O in total, in which a ratio PLi of the content of Li2O to a total content of Li2O, Na2O, and K2O is 0.40 or more, and a total content of MgO, CaO, SrO, BaO, and ZnO is 0-10%.
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Patent Agency Ranking
公开(公告)号：US20210292225A1
公开(公告)日：2021-09-23
申请号：US17339088
申请日：2021-06-04
Applicant: AGC Inc.
Inventor： Takumi UMADA , Kenji IMAKITA , Yusuke ARAI , Qing LI
Abstract: The present invention relates to a chemically strengthened glass sheet in which a value of SB/(SA×t) is 5.0 mm−1 or more, where SA (MPa·μm) is an integrated value of a compressive stress from a surface of the glass sheet to a depth of 10 μm, SB (MPa·μm) is an integrated value of a compressive stress from the depth of 10 μm to DOL which is a depth at which the compressive stress is zero, and t (mm) is a thickness of the glass sheet.
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7.发明公开公开(公告)号：US20240190761A1
公开(公告)日：2024-06-13
申请号：US18588038
申请日：2024-02-27
Applicant: AGC Inc.
Inventor： Kenji IMAKITA , Suguru MURAYAMA
CPC classification number: C03C21/002 , C03C3/085 , C03C3/087 , C03C3/091 , C03C4/20 , C03C2204/00
Abstract: A plate-like chemically strengthened glass having a compression stress layer on the surface of the glass, wherein the compressive stress value (CS0) at the glass surface of is 500 MPa or more, the plate thickness (t) is 400 μm or more, the compressive stress depth of layer (DOL) is (t×0.15) μm or more, the compressive stress values (CS1) and (CS2) when the depth from the glass surface is ¼ and ½, respectively, are 50 MPa or more, m1 expressed by {m1=(CS1−CS2/(DOL/4−DOL/2)} is −1.5 MPa/μm or more, m2 expressed by {m2=(CS2/(DOL/2−DOL)} is 0 MPa/μm or less, and m2 is less than m1.
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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：US20230021473A1
公开(公告)日：2023-01-26
申请号：US17934294
申请日：2022-09-22
Applicant: AGC Inc.
Inventor： Takumi UMADA , Kenji IMAKITA , Shusaku AKIBA , Yusaku MATSUO
Abstract: The present invention relates to a glass including, in terms of mole percentage based on oxides: SiO2 in an amount of 45% to 65%; Al2O3 in an amount of 18% to 30%; Li2O in an amount of 7% to 15%; one or more selected from Y2O3 and La2O3 in a total amount of 0% to 10%; P2O5 in an amount of 0% to 10%; B2O3 in an amount of 0% to 10%; and ZrO2 in an amount of 0% to 4%, and satisfying the following expression: [Al2O3]—[R2O]—[RO]—[P2O5]>0, provided that, in terms of mole percentage based on oxides, a content of Al2O3 is defined as [Al2O3], a content of P2O5 is defined as [P2O5], a total content of alkali metal oxides is defined as [R2O], and a total content of alkali earth metal oxides is defined as [RO].
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公开(公告)号：US20220064054A1
公开(公告)日：2022-03-03
申请号：US17525554
申请日：2021-11-12
Applicant: AGC Inc.
Inventor： Qing LI , Kenji IMAKITA , Akio KOIKE , Eriko MAEDA
IPC: C03C10/00 , C03B23/025 , C03B32/02 , C03C4/00 , C03C21/00
Abstract: The present invention provides crystallized glass of three-dimensional shape for easily producing chemically strengthened glass of three-dimensional shape that resists damage and has exceptional transparency. This crystallized glass of three-dimensional shape:
contains crystals; has light transmittance in terms of a thickness of 0.8 mm of 80% or higher; and contains 45-74% SiO2, 1-30% Al2O3, 1-25% Li2O, 0-10% Na2O, 0-5% K2O, a total of 0-15% of SnO2 and/or ZrO2, and 0-12% P2O5, these amounts expressing the oxide-based mass percentage.
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