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公开(公告)号：US20210053867A1
公开(公告)日：2021-02-25
申请号：US17024109
申请日：2020-09-17
Applicant: AGC Inc.
Inventor： Suguru MURAYAMA , Seiki OHARA , Qing LI , Shusaku AKIBA
Abstract: A glass for chemical strengthening contains, in mole percentage on an oxide basis, 58 to 80% of SiO2, 13 to 18% of Al2O3, 0 to 5% of B2O3, 0.5 to 4% of P2O5, 4 to 10% of Li2O, 5 to 14% of Na2, 0 to 2% of K2O, 0 to 11% of MgO, 0 to 5% of CaO, 0 to 20% of SrO, 0 to 15% of BaO, 0 to 10% of ZnO, 0 to 1% of TiO2, and 0 to 2% of ZrO2. A value of X is 30000 or more. The value of X is calculated based on the formula, X=SiO2×329+Al2O3×786+B2O3×627+P2O5×(−941)+Li2O×927+Na2O×47.5+K2O×(−371)+MgO×1230+CaO×1154+SrO×733+ZrO2×51.8, by using the contents in mole percentage on an oxide basis of components.
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公开(公告)号：US20230119617A1
公开(公告)日：2023-04-20
申请号：US18068547
申请日：2022-12-20
Applicant: AGC Inc.
Inventor： Suguru MURAYAMA , Kazuki KANEHARA , Eriko MAEDA
Abstract: The present invention relates to a glass for chemical strengthening including, in mole percentage on an oxide basis: 60 to 72% of SiO2; 9 to 20% of Al2O3; 1 to 15% of Li2O; 0.1 to 5% of Y2O3; 0 to 1.5% of ZrO2; and 0 to 1% of TiO2, having a total content of one or more kinds of MgO, CaO, SrO, BaO and ZnO of 1 to 10%, having a total content of Na2O and K2O of 1.5 to 10%, having a total content of B2O3 and P2O5 of 0 to 10%, wherein a ratio ([Al2O3]+[Li2O])/([Na2O]+[K2O]+[MgO]+[CaO]+[SrO]+[BaO]+[ZnO]+[ZrO2]+[Y2O3]) is from 0.7 to 3, wherein a ratio [MgO])/([CaO]+[SrO]+[BaO]+[ZnO]) is from 10 to 45, and having a value M expressed by the following expression of 1,100 or more: M=−5×[SiO2]+121×[Al2O3]+50×[Li2O]−35×[Na2O]+32×[K2O]+85×[MgO]+54×[CaO]−41×[SrO]−4×[P2O5]+218×[Y2O3]+436×[ZrO2]−1180, wherein each of [SiO2], [Al2O3], [Li2O], [Na2O], [K2O], [MgO], [CaO], [SrO], [P2O5], [Y2O3], and [ZrO2] designates a content of each component in mole percentage on an oxide basis.
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3.发明申请公开(公告)号：US20190292099A1
公开(公告)日：2019-09-26
申请号：US16440305
申请日：2019-06-13
Applicant: AGC INC.
Inventor： Suguru MURAYAMA , Yuriko BANNO
Abstract: A chemically strengthened glass having a thickness t of 2 mm or less, having a compressive stress value (CS90) at a portion of 90 μm deep from a glass surface being 25 MPa or more, and satisfying a number of fragments generated within a size of 25 mm×25 mm being 20 or less in a fracture test according to an indenter indentation test under a condition of holding a load ranging from 5 kgf to 10 kgf for 15 seconds with a pyramidal diamond indenter having an indenter angle of a facing angle of 60°.
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公开(公告)号：US20180327304A1
公开(公告)日：2018-11-15
申请号：US16033787
申请日：2018-07-12
Applicant: AGC Inc.
Inventor： Suguru MURAYAMA , Seiki Ohara , Qing Li , Shusaku Akiba
Abstract: A glass for chemical strengthening contains, in mole percentage on an oxide basis, 58 to 80% of SiO2, 13 to 18% of Al2O3, 0 to 5% of B2O3, 0.5 to 4% of P2O5, 4 to 10% of Li2O, 5 to 14% of Na2O, 0 to 2% of K2O, 0 to 11% of MgO, 0 to 5% of CaO, 0 to 20% of SrO, 0 to 15% of BaO, 0 to 10% of ZnO, 0 to 1% of TiO2, and 0 to 2% of ZrO2. A value of X is 30000 or more. The value of X is calculated based on the formula, X=SiO2×329+Al2O3×786+B2O3×627+P2O5×(−941)+Li2O×927+Na2O×47.5+K2O×(−371)+MgO×1230+CaO×1154+SrO×733+ZrO2×51.8, by using the contents in mole percentage on an oxide basis of components.
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5.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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Patent Agency Ranking
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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7.发明申请公开(公告)号：US20180319706A1
公开(公告)日：2018-11-08
申请号：US16032566
申请日：2018-07-11
Applicant: AGC INC.
Inventor： Suguru MURAYAMA , Yuriko BANNO
CPC classification number: C03C21/002 , C03C3/085 , C03C3/087 , C03C3/091 , C03C3/093 , C03C3/097 , C03C21/00
Abstract: A chemically strengthened glass having a thickness t of 2 mm or less, having a compressive stress value (CS90) at a portion of 90 μm deep from a glass surface being 25 MPa or more, and satisfying a number of fragments generated within a size of 25 mm×25 mm being 20 or less in a fracture test according to an indenter indentation test under a condition of holding a load ranging from 5 kgf to 10 kgf for 15 seconds with a pyramidal diamond indenter having an indenter angle of a facing angle of 60°.
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8.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：US20210009462A1
公开(公告)日：2021-01-14
申请号：US17034172
申请日：2020-09-28
Applicant: AGC Inc.
Inventor： Suguru MURAYAMA , Akio KOIKE
Abstract: The purpose of the present invention is to provide a glass for chemical strengthening that exhibits a high strength after chemical strengthening and is resistant to devitrification. The present invention relates to a glass for chemical strengthening that contains, expressed as mol% on an oxide basis, 55 to 70% SiO2, 10 to 25% Al2O3, 1 to 20% Li2O, 0 to 8% CaO, 0 to 8% SrO, and 0 to 5% ZrO2, in which the sum of the contents of CaO and SrO is 1.5 to 10%, the sum of the contents of Na2O and K2O is 3 to 11%, and the value X given by the formula ([Li2O]+[K2O])/[Al2O3] is 0.1 to 1.1.
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