公开(公告)号：US20200239354A1

公开(公告)日：2020-07-30

申请号：US16747586

申请日：2020-01-21

Applicant: AGC Inc.

Inventor： Qing LI ,  Akio KOIKE ,  Kazuki KANEHARA

IPC: C03C3/097 ,  C03B32/02 ,  C03C21/00 ,  C03C3/083

Abstract: A crystallized glass that: has a visible light transmittance of at least 85% when the thickness thereof is converted to 0.8 mm; has a haze value of no more than 1.0% when the thickness thereof is converted to 0.8 mm; contains, in terms of mass % on an oxide basis, 58%-70% SiO2, 15%-30% Al2O3, 2%-10% Li2O, 0%-5% Na2O, 0%-2% K2O, 0%-1.8% SrO, 0%-2% BaO, 0.5%-6% SnO2, 0.5%-6% ZrO2, and 0%-6% P2O5; has a total SrO and BaO content of 0.1%-3%; and has a total Na2O and K2O content of 1%-5%.

公开(公告)号：US20240092678A1

公开(公告)日：2024-03-21

申请号：US18520792

申请日：2023-11-28

Applicant: AGC Inc.

Inventor： Qing LI ,  Seiki OHARA

IPC: C03B32/02 ,  C03B11/12

CPC classification number: C03B32/02 ,  C03B11/125

Abstract: The present invention relates to a method for producing crystallized glass, including: (a1) melting a glass raw material to obtain molten glass; (a2) molding the molten glass into a predetermined shape by a molding unit to obtain a glass molded body; (a3) slowly cooling the glass molded body to obtain a raw glass plate containing at least one of a crystal nucleus and a separated phase; and (a4) heat-treating the raw glass plate containing the at least one of the crystal nucleus and the separated phase to cause crystal growth so as to obtain the crystallized glass.

公开(公告)号：US20230406763A1

公开(公告)日：2023-12-21

申请号：US18461121

申请日：2023-09-05

Applicant: AGC Inc.

Inventor： Takumi UMADA ,  Qing LI ,  Shunji WACHI

IPC: C03C21/00 ,  C03C23/00 ,  C03C10/00 ,  C03C3/097

CPC classification number: C03C21/002 ,  C03C23/0075 ,  C03C10/0027 ,  C03C3/097

Abstract: The present invention relates to a chemically-strengthened glass having a first main surface and a second main surface, including a glass ceramic including a crystal and a residual glass, having a surface compressive stress value (CS0) of 450 MPa or more, and a compressive stress value (CS50) at a depth of 50 μm of 150 MPa or more, having a plurality of non-through holes having a diameter average value of 5 nm to 50 nm on the first main surface and the second main surface, the non-through holes having a depth average value measured by a cross-sectional SEM image of the first main surface and the second main surface of 5 nm to 50 nm, and having a total area ratio to a total visual field area of a surface SEM image of the first main surface and the second main surface of 1% to 40%.

公开(公告)号：US20210347682A1

公开(公告)日：2021-11-11

申请号：US17443202

申请日：2021-07-22

Applicant: AGC Inc.

Inventor： Qing LI ,  Yusuke ARAI ,  Akio KOIKE ,  Kazutaka ONO ,  Hitomi FURUTA ,  Shigeki SAWAMURA

IPC: C03C10/00 ,  C03C4/18 ,  H01L23/15 ,  C03C21/00

Abstract: The present invention relates to a glass ceramic having a visible-light transmittance of 85% or more in terms of a thickness of 0.7 mm, and a haze value of 1.0% or less in terms of a thickness of 0.7 mm, and including, in mass % on an oxide basis: 45-70% of SiO2; 1-15% of Al2O3; and 10-25% of Li2O.

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.

公开(公告)号：US20240270626A1

公开(公告)日：2024-08-15

申请号：US18644271

申请日：2024-04-24

Applicant: AGC Inc.

Inventor： Qing LI ,  Yusuke ARAI ,  Akio KOIKE ,  Kazutaka ONO ,  Hitomi FURUTA ,  Shigeki SAWAMURA

IPC: C03C10/00 ,  C03C4/18 ,  C03C21/00 ,  H01L23/15

CPC classification number: C03C10/0027 ,  C03C4/18 ,  C03C21/002 ,  H01L23/15 ,  C03C2204/00

Abstract: A glass sheet, containing, in mass % on an oxide basis: 45-70% of SiO2, 1-15% of Al2O3, 10-25% of Li2O, 0-10% of Na2O, 0-5% of K2O, and 0-15% of ZrO2. K2O/R2O is 0.10 or less and ZrO2/R2O is 0.30 or more, where R2O is a total content of Li2O, Na2O, and K2O. The glass sheet has an average thermal expansion coefficient at 50° C.-350° C. of 90×10−7/° C.-140×10−7/° C. and a Young's modulus of 85 GPa or more.

公开(公告)号：US20240002282A1

公开(公告)日：2024-01-04

申请号：US18468969

申请日：2023-09-18

Applicant: AGC Inc.

Inventor： Takumi UMADA ,  Qing LI ,  Yusuke FUJIWARA ,  Yusuke KATAOKA

IPC: C03C10/00 ,  C03C21/00

CPC classification number: C03C10/0027 ,  C03C21/002

Abstract: The present invention relates to a chemically strengthened glass having a thickness of t [μm] and including Li2O, K2O, and Na2O, in which a minimum depth z at which Kx is (Kt/2+0.1) [%] or more is 0.5 μm to 5 μm, provided that Kx [%] is a concentration of K2O at a depth of x [μm] from a surface of the chemically strengthened glass and Kt/2 [%] is a content of K2O before chemical strengthening, in terms of mole percentage based on oxides.

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].

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：US20250026676A1

公开(公告)日：2025-01-23

申请号：US18903754

申请日：2024-10-01

Applicant: AGC Inc.

Inventor： Takumi UMADA ,  Kenji IMAKITA ,  Yusuke ARAI ,  Qing LI

IPC: C03C3/083 ,  C03C10/00

Abstract: 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 5 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.