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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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3.发明公开公开(公告)号：US20240217864A1
公开(公告)日：2024-07-04
申请号：US18600865
申请日：2024-03-11
Applicant: AGC Inc.
Inventor： Kazuki KANEHARA , Seiji INABA , Shuhei OGAWA
IPC: C03C3/097 , C03B5/235 , C03B19/02 , C03B25/02 , C03C3/06 , C03C3/078 , C03C3/087 , C03C3/089 , C03C3/091 , C03C3/095 , C03C3/11 , C03C3/12 , H01L21/683 , H01L21/687
CPC classification number: C03C3/097 , C03B5/235 , C03B19/02 , C03B25/02 , C03C3/06 , C03C3/078 , C03C3/087 , C03C3/089 , C03C3/091 , C03C3/095 , C03C3/111 , C03C3/125 , C03C2201/02 , H01L21/6833 , H01L21/68757
Abstract: The present invention relates to a glass block including: Si; and at least one of Mg and Ca, and satisfying, in terms of mol %, 49.0% or less of B2O3, 11.5% or less of P2O5, 10.0 to 59.5% of a (=SiO2+B2O3+P2O5+GeO2), 66.5% or less of (a+Al2O3), 7.0% or less of Ga2O3, 0.44 or less of b (=Al2O3+Ga2O3+In2O3)/a, 20.0% or more of R2O (R2: alkaline earth metal), 50.0% or less of MgO, MgO≥BaO, CaO≥BaO, SrO≥BaO, MgO≥SrO, CaO≥SrO, 1.2% or less of R12O (R1: alkali metal), 4.8% or less of TiO2 or ZrO2, 9.5% or less of MnO2, 11.8% or less of ZnO, 0.067 or less of Ta2O5/SiO2, 15.0% or less of an impurity element, and 0.20 or less of F/O.
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公开(公告)号：US20230082423A1
公开(公告)日：2023-03-16
申请号：US18053820
申请日：2022-11-09
Applicant: AGC Inc.
Inventor： Kazuki KANEHARA , Yutaka KUROIWA , Shusaku AKIBA , Hiroyuki HIJIYA
Abstract: The present invention relates to a glass including, in terms of mole percentage based on oxides: 50.0 to 75.0% of SiO2; 7.5 to 25.0% of Al2O3; 0 to 25.0% of B2O3; 6.5 to 20.0% of Li2O; 1.5 to 10.0% of Na2O; 0 to 4.0% of K2O; 1.0 to 20.0% of MgO; one or more components selected from MgO, CaO, SrO, and BaO in a total amount of 1.0 to 20.0%; and 0 to 5.0% of TiO2, in which a value of Y calculated based on the following formula is 19.5 or less, Y=1.2×([MgO]+[CaO]+[SrO]+[BaO])+1.6×([Li2O]+[Na2O]+[K2O]), provided that [MgO], [CaO], [SrO], [BaO], [Li2O], [Na2O], and [K2O] are contents, in terms of mole percentage based on oxides, of components of MgO, CaO, SrO, BaO, Li2O, Na2O, and K2O respectively.
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公开(公告)号：US20200325066A1
公开(公告)日：2020-10-15
申请号：US16911878
申请日：2020-06-25
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: 45 to 75% of SiO2; 1 to 30% of Al2O3; 1 to 20% of Li2O; 0 to 5% of Y2O3; 0 to 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 20%, having a total content of Na2O and K2O of 0 to 10%, having a total content of B2O3 and P2O5 of 0 to 10%, and having a value M expressed by the following expression of 1,000 or more: M=−5×[SiO2]+121×[Al2O3]+50×[Li2O]−35×[Na2O]+32×[K2O]+85×[MgO]+54×[CaO]−41×[Sr O]−4×[P2O5]+218×[Y2O3]+436×[ZrO2]−1180, in which 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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Patent Agency Ranking
公开(公告)号：US20240425407A1
公开(公告)日：2024-12-26
申请号：US18825001
申请日：2024-09-05
Applicant: AGC Inc.
Inventor： Shuhei OGAWA , Tomonori OGAWA , Kazuki KANEHARA
IPC: C03C4/20 , C03B19/02 , C03B25/02 , C03C3/087 , C03C3/091 , C03C3/093 , C03C3/112 , C03C3/118 , H01J37/32
Abstract: A glass block for a plasma resistant member, including silicon and at least one of magnesium and calcium, in which, in terms of mole percentage based on an oxide, a total content of MgO and CaO is 3.0 mol % or more and less than 29.0 mol %, a content of R2O is 3.0 mol % or more and less than 35.0 mol %, and a content of R12O is 8.0 mol % or less, provided that R1 is an alkali metal element and R2 is an alkaline earth metal element.
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公开(公告)号：US20240360028A1
公开(公告)日：2024-10-31
申请号：US18769571
申请日：2024-07-11
Applicant: AGC Inc.
Inventor： Kazuki KANEHARA , Yutaka KUROIWA
CPC classification number: C03C10/0036 , C03C3/062 , C03C3/093 , C03C3/097 , C03C4/00 , C03C2204/00
Abstract: The present invention relates a crystallized glass having a composition that includes, in terms of molar percentage based on oxides: 40% to 70% of SiO2; 7.5% to 30% of Al2O3; 0.5% to 15% of P2O5; 13% to 30% of a total content of one or more selected from SrO and BaO; and 2.5% to 10% of a total content of one or more selected from TiO2 and ZrO2, and including at least one crystal of a celsian crystal and a hexa-celsian crystal.
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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：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：US20230322614A1
公开(公告)日：2023-10-12
申请号：US18202825
申请日：2023-05-26
Applicant: AGC Inc.
Inventor： Kazuki KANEHARA , Yutaka KUROIWA
CPC classification number: C03C10/0027 , C03C3/083 , C03C3/091 , C03C3/093 , C03C3/095 , C03C3/097 , C03C10/0054 , C03C21/002 , C03C2204/00 , H05K5/02
Abstract: The present invention relates to a chemically strengthened glass having a thickness of t (unit: µm) and a relative permittivity of 7.0 or less at 20° C. and a frequency of 10 GHz, in which a value of Z determined by the following formula is 0.65 or more, where S1 is an entropy function calculated from an amount of alkali ions in a center portion of the glass, S2 is an entropy function calculated from an average amount of alkali ions from a glass surface to a depth of 0.05t, and X (unit: MPa) is an average value of a compressive stress in a region from the glass surface to the depth of 0.05t: Z = (S2 - S1) × 10 + X/1000.
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