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1.发明公开公开(公告)号：US20230250015A1
公开(公告)日：2023-08-10
申请号：US18301290
申请日：2023-04-17
Applicant: AGC Inc.
Inventor： Qing LI , Akio KOIKE , Eriko MAEDA
CPC classification number: C03C21/002 , C03C3/083 , C03C4/0028 , C03C10/0027
Abstract: The present invention pertains to a glass for strengthening, that: has an average transmittance of at least 70% when converted to a thickness of 0.8 mm at a wavelength of 380-780 nm; has a haze value of no more than 0.7% when converted to a thickness of 0.8 mm in a C light source; has a Young's modulus of at least 85 GPa; has a fracture toughness value of at least 0.90 MPa·m1/2; a thermal conductivity at 20° C. of at least 1.3 W/m·K; and comprises a lithium aluminosilicate crystallized glass.
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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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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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公开(公告)号：US20230112685A1
公开(公告)日：2023-04-13
申请号：US18064503
申请日：2022-12-12
Applicant: AGC Inc.
Inventor： Eriko MAEDA , Kazuki KANEHARA , Shusaku AKIBA
Abstract: The present invention relates to a glass including, in terms of mole percentage based on oxides: 52% to 70% of SiO2; 14% to 25% of Al2O3; 10% to 18% of Li2O; 1% to 7% of Na2O; 0.1% to 5% of K2O; 0% to 10% of B2O3; 0% to 5% of P2O5; 0% to 5% of MgO; 0% to 5% of ZnO; 0% to 2% of ZrO2; and 0% to 5% of Y2O3, in which a parameter M is 20 or less, the parameter M being determined by the following formula, M=−1.15×[SiO2]−1.73×[Al2O3]+0.155×[Li2O]+0.74×[Na2O]−4.75×[K2O]−2.1×[B2O3]−2.17×[P2O5]+3.25×[MgO]−2.0×[ZnO]−13.3×[ZrO2]−0.80×[Y2O3]+120.
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公开(公告)号：US20210323862A1
公开(公告)日：2021-10-21
申请号：US17305169
申请日：2021-07-01
Applicant: AGC Inc.
Inventor： Kazuki KANEHARA , Eriko MAEDA , Takumi UMADA , Kenji IMAKITA
Abstract: The present invention relates to a chemically strengthened glass having a sheet shape, having a compressive stress layer on a glass surface, having a compressive stress value on the glass surface of 800 MPa or more, having a sheet thickness (t) of 100 μm or more, having a depth of the compressive stress layer (DOL) of (t×0.1) μm or more, and satisfying: CSB>CSA>0, where DB is a depth in a range of 10 μm or more and not more than DOL from the glass surface, at which a compressive stress value is maximum; CSB is the compressive stress value at the depth DB; DΛ is a depth in a range of equal to or less than DB from the glass surface, at which a compressive stress value is minimum; and CSA is the compressive stress value at the depth DA.
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Patent Agency Ranking
公开(公告)号：US20200207660A1
公开(公告)日：2020-07-02
申请号：US16747593
申请日：2020-01-21
Applicant: AGC Inc.
Inventor： Qing LI , Kenji IMAKITA , Akio KOIKE , Eriko MAEDA
Abstract: The purpose of the present invention is to provide a chemically strengthened glass having excellent transparency and strength and being scratch resistant. The present invention pertains to a chemically strengthened glass that: has a compressive stress layer on the surface thereof; has a visible light transmittance of at least 70% when the thickness thereof is converted to 0.8 mm; has a surface compressive stress of at least 600 MPa; has a compressive stress depth of at least 80 μm; and contains a β-spodumene.
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公开(公告)号：US20230192534A1
公开(公告)日：2023-06-22
申请号：US18109851
申请日：2023-02-14
Applicant: AGC Inc.
Inventor： Shigeki SAWAMURA , Eriko MAEDA , Shusaku AKIBA , Satoshi OGAMI
IPC: C03C10/00
CPC classification number: C03C10/0027
Abstract: The present invention relates to a glass ceramic having a lithium aluminosilicate composition and including a crystal and a residual glass, in which the residual glass has a composition including, in terms of mol % based on oxides: 25% to 70% of SiO2; 3% to 35% of Al2O3; 0.1% to 20% of Li2O; 0.1% to 20% of Na2O; 0% to 10% of K2O; and 1% to 15% of ZrO2, and a parameter V is −600 or more and 720 or less, the parameter V being calculated based on the following formula: V=49.589×[SiO2]+61.806×[Al2O3]+45.456×[P2O5]+41.151×[MgO]+110.26×[CaO]+50.263×[SrO]+55.693×[Li2O]+3.598×[Na2O]+9.503×[K2O]+6.83×[TiO2]−2.885×[ZrO2]−3746.99.
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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.-
公开(公告)号：US20240391826A1
公开(公告)日：2024-11-28
申请号：US18792612
申请日：2024-08-02
Applicant: AGC Inc.
Inventor： Hiroyuki HIJIYA , Takato KAJIHARA , Eriko MAEDA , Shusaku AKIBA , Chieko SUZUKI , Kenji IMAKITA
Abstract: A chemically strengthened glass in which a base glass composition of the chemically strengthened glass includes, in terms of molar percentage based on oxides: 55% to 75% of SiO2; 8% to 20% of Al2O3; 3% to 15% of Li2O; 1% to 5% of Na2O; 0% to 3% of K2O; 0% to 10% of MgO; 0% to 3% of Y2O3; 0% to 3% of ZrO2; 0% to 10% of CaO; 0% to 5% of SrO; 0% to 5% of ZnO; 0% to 3% of TiO2; 0% to 1% of SnO2; 0% to 5% of P2O5; and 0% to 10% of B2O3, a ratio [ZrO2]/([Y2O3]+[ZrO2]) is 0 or more and 0.7 or less, and the total content of Y2O3 and ZrO2 is 0.0% or more and 3.0% or less, and a value of 1nW represented by the Formula (1) is 10 or more and 20 or less.
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公开(公告)号：US20200346969A1
公开(公告)日：2020-11-05
申请号：US16936533
申请日：2020-07-23
Applicant: AGC Inc.
Inventor： Qing LI , Kenji IMAKITA , Akio KOIKE , Eriko MAEDA
IPC: C03C10/00 , C03C4/00 , C03C21/00 , C03B32/02 , C03B23/025
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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