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公开(公告)号：US20230192531A1
公开(公告)日：2023-06-22
申请号：US18110357
申请日：2023-02-15
Applicant: AGC Inc.
Inventor： Hitomi FURUTA , Qing LI , Shigeki SAWAMURA , Shusaku AKIBA
CPC classification number: C03C3/097 , C03C21/002
Abstract: The present invention relates to a chemically strengthened glass having a sheet shape, in which a haze in terms of a thickness of 0.70 mm is 1.0% or less, and on at least one main surface of the glass, a ratio (Rku/Hv)×1000 of kurtosis Rku of surface unevenness to Vickers hardness Hv is 1 or more and 4.4 or less.
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公开(公告)号：US20220411318A1
公开(公告)日：2022-12-29
申请号：US17896048
申请日：2022-08-25
Applicant: AGC Inc.
Inventor： Seiki OHARA , Qing LI , Shusaku AKIBA
Abstract: The present invention relates to a glass ceramic including crystals, and including, in mol % in terms of oxides: 65-75% of SiO2; 3-6% of Al2O3; 15-25% of Li2O; 0.2-4% of P2O5; 0.5-5% of ZrO2; and 0.01-0.5% of HfO2, in which the crystals include one or more kinds of crystals selected from the group consisting of β-spodumene crystals, petalite crystals, and eucryptite crystals.
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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：US20240150226A1
公开(公告)日：2024-05-09
申请号：US18414607
申请日：2024-01-17
Applicant: AGC Inc.
Inventor： Kazuki KANEHARA , Yutaka KUROIWA , Shusaku AKIBA
CPC classification number: C03C10/0054 , C03C10/0027 , C03C21/002
Abstract: The present invention relates to a glass ceramic, in which a crystal contained in the largest amount on a mass basis is a lithium disilicate-based crystal, and a difference obtained by subtracting a ratio (mass %) of a content of a crystal contained in the second largest amount on a mass basis from a ratio (mass %) of a content of the lithium disilicate-based crystal is 20 mass % or more.
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公开(公告)号：US20230365456A1
公开(公告)日：2023-11-16
申请号：US18355545
申请日：2023-07-20
Applicant: AGC INC.
Inventor： Shigeki SAWAMURA , Qing LI , Hitomi FURUTA , Shusaku AKIBA
IPC: C03C10/00
CPC classification number: C03C10/0009 , C03C10/0054
Abstract: The present invention is a glass ceramic including a crystal and a residual glass, in which the residual glass has a Young's modulus parameter ER of 75 or more, the Young's modulus parameter ER being calculated based on the following formula: ER=62.2×[SiO2]+134.9×[Al2O3]+121.7×[B2O3]+33.0×[P2O5]+72.6×[MgO]+121.5×[CaO]+43.7×[SrO]+38.6×[BaO]+84.0×[Li2O]+26.2×[Na2O]+17.8×[K2O]+156.8×[ZrO2]+154.3×[TiO2]+74.7×[La2O3]+80.3×[Y2O3]+54.3×[ZnO].
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Patent Agency Ranking
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：US20230120488A1
公开(公告)日：2023-04-20
申请号：US18050669
申请日：2022-10-28
Applicant: AGC Inc.
Inventor： Takato KAJIHARA , Shigeki SAWAMURA , Shusaku AKIBA , Yutaka KUROIWA
IPC: B60J1/02 , B32B7/02 , B32B17/10 , B32B27/30 , C03C3/091 , C03C3/087 , C03C3/095 , C03C4/00 , B60J1/00
Abstract: The present invention pertains to a laminated glass for a vehicle, the laminated glass including a first glass sheet, a second glass sheet and an intermediate film sandwiched between the first glass sheet and the second glass sheet, in which: the total thickness of the first glass sheet, the second glass sheet and the intermediate film is 4.0 mm or more; the first glass sheet is formed of a borosilicate glass containing, in terms of oxide by molar percentage, 1.0% or more of B2O3; and when a radio wave (TM wave) with a frequency of 79 [GHz] is made incident at an incident angle of 60° to the first glass sheet, the transmission property S21 is -4.0 [dB] or more.
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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：US20220119306A1
公开(公告)日：2022-04-21
申请号：US17561493
申请日：2021-12-23
Applicant: AGC Inc.
Inventor： Shusaku AKIBA , Takumi UMADA
Abstract: The present invention relates to a chemically strengthened glass having a first main surface, and satisfying the following (1a) to (4a): (1a) in a thickness range of [depth where a compressive stress value is 0]±10 μm, a stress curve has a gradient of −15 MPa/μm to −3 MPa/μm and an Na concentration curve has a gradient of 0.02/μm to 0.12/μm in terms of absolute value; (2a) the Na concentration curve, in a sheet-thickness-direction range lying between the first main surface and the depth where the compressive stress value is 0, has a monotonously decreasing gradient; (3a) the chemically strengthened glass has a thickness of 1 mm or less; and (4a) the chemically strengthened glass includes Li2O in an amount of 10 mol % or more in mole percentage on an oxide basis.
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公开(公告)号：US20220003576A1
公开(公告)日：2022-01-06
申请号：US17476601
申请日：2021-09-16
Applicant: AGC INC.
Inventor： Shusaku AKIBA , Masao OZEKI , Satoshi TAKEDA , Satoshi KANASUGI , Satoshi OGAMI
Abstract: A sensor module includes: a base member; at least one of a single or a plurality of sensors and vibrators arranged on the base member; and a protective member constituted of at least one flat surface or a curved surface, provided so as to cover the at least one of the sensors and the vibrators. A part or whole of the protective member is formed of a strengthened glass and the strengthened glass is a chemically strengthened glass or a physically strengthened glass.
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