公开(公告)号：US20210206691A1

公开(公告)日：2021-07-08

申请号：US17205703

申请日：2021-03-18

Applicant: AGC Inc.

Inventor： Michinori SUEHARA ,  Yusuke FUJIWARA ,  Lilin ZHOU

IPC: C03C21/00 ,  G02B1/14 ,  G02B1/18 ,  G01N3/24 ,  G01N3/56 ,  G01N33/38 ,  H05K5/00 ,  H05K5/03

Abstract: The purpose of the present invention is to provide a chemically-strengthened glass exhibiting both surface strength and abrasion-resistant anti-fingerprint (AFP) properties. The present invention relates to a plate-shaped chemically-strengthened glass which has a compressive stress layer provided to a glass surface layer, a glass surface hydrogen concentration profile in a specific range, and a surface strength and abrasion-resistant anti-fingerprint (AFP) properties which are in specific ranges.

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：US20230271878A1

公开(公告)日：2023-08-31

申请号：US18172432

申请日：2023-02-22

Applicant: AGC Inc.

Inventor： Satoshi OGAMI ,  Yusuke KATAOKA ,  Yusuke FUJIWARA

IPC: C03C21/00 ,  C03B32/02 ,  C03C10/00

CPC classification number: C03C21/002 ,  C03B32/02 ,  C03C10/0027

Abstract: The present invention relates to a chemically strengthened glass, satisfying in comparison of an estimated stress profile with an effective stress profile, an absolute value of a difference between tensile stress values at a center in a thickness direction is 30 MPa or smaller, and a value obtained by subtracting, at a depth of 15 μm from a chemically strengthened surface of the glass, a compressive stress value of the effective stress profile from a compressive stress value of the estimated stress profile is 50 MPa or larger.

公开(公告)号：US20220281769A1

公开(公告)日：2022-09-08

申请号：US17652543

申请日：2022-02-25

Applicant: AGC INC.

Inventor： Kaname SEKIYA ,  Yusuke FUJIWARA

IPC: C03C21/00 ,  C03C3/083 ,  C03C4/18

Abstract: The present invention relates to a chemically strengthened glass having a thickness t (mm), in which a first-order derivative CSx′ of a stress value CSx (MPa) is −4.7 or larger in a range of CSx≥0 in a profile of the stress value CSx (MPa), in which the stress value CSx (MPa) is a function of depth×(μm) from a glass surface, and in which the stress value CSx (MPa) is measured by a scattered light photoelastic stress meter, and a manufacturing method thereof.

公开(公告)号：US20220033299A1

公开(公告)日：2022-02-03

申请号：US17388494

申请日：2021-07-29

Applicant: AGC Inc.

Inventor： Kaname SEKIYA ,  Yusuke FUJIWARA

IPC: C03C21/00 ,  C03C4/18 ,  C03C3/083

Abstract: The present invention relates to a chemically strengthened glass having a thickness of t [mm], and having a profile of a stress value CSx [MPa] at a depth x [μm] from a surface of the glass, the stress value being measured by a scattered-light photoelastic stress meter, in which a second-order differential value CSx″ of the stress value CSx in the profile satisfies the following expression within a range of CSx≥0: 0

公开(公告)号：US20240383802A1

公开(公告)日：2024-11-21

申请号：US18663165

申请日：2024-05-14

Applicant: AGC Inc.

Inventor： Kaname SEKIYA ,  Seiji INABA ,  Yusuke FUJIWARA ,  Yusuke KATAOKA

IPC: C03C21/00 ,  C03C3/095 ,  C03C3/097

Abstract: The present invention relates to a chemically strengthened glass having a sheet thickness t (mm), a compressive stress layer depth DOC of 180×t (μm) or more, CS30-50 which is a compressive stress integrated value at a depth of 30 μm to 50 μm from a surface of the chemically strengthened glass of 12000 Pa·m or less, and CS90 which is a compressive stress value at a depth of 90 μm from the surface of 175×t−88 (MPa) or more.

公开(公告)号：US20240368032A1

公开(公告)日：2024-11-07

申请号：US18775847

申请日：2024-07-17

Applicant: AGC Inc.

Inventor： Yusuke FUJIWARA ,  Yoichi TAKATO ,  Yusuke KOBAYASHI ,  Masao OZEKI ,  Yusuke MORISHIMA ,  Takumi NAGASAKO

IPC: C03C21/00 ,  C03C3/083 ,  C03C19/00 ,  H01L31/048

Abstract: A chemically strengthened glass has a thickness of more than 2 mm, a surface compressive stress CS0 of 400 MPa to 1200 MPa, a depth of compressive stress layer DOL-tail of 2.7 μm to 30.0 μm, an absolute value of an average slope of a stress profile from a surface to the DOL-tail of 20 MPa/μm to 500 MPa/μm, and a tensile stress CT of 1.0 MPa to 16 MPa.

公开(公告)号：US20240327276A1

公开(公告)日：2024-10-03

申请号：US18737352

申请日：2024-06-07

Applicant: AGC INC.

Inventor： Kaname SEKIYA ,  Yusuke FUJIWARA

IPC: C03C21/00 ,  C03C3/083 ,  C03C4/18

CPC classification number: C03C21/002 ,  C03C3/083 ,  C03C4/18 ,  C03C2204/00

Abstract: The present invention relates to a chemically strengthened glass having a thickness t (mm), in which a first-order derivative CSx′ of a stress value CSx (MPa) is −4.7 or larger in a range of CSx≥0 in a profile of the stress value CSx (MPa), in which the stress value CSx (MPa) is a function of depth x (μm) from a glass surface, and in which the stress value CSx (MPa) is measured by a scattered light photoelastic stress meter, and a manufacturing method thereof.

公开(公告)号：US20240166560A1

公开(公告)日：2024-05-23

申请号：US18426403

申请日：2024-01-30

Applicant: AGC Inc.

Inventor： Izuru KASHIMA ,  Yusuke FUJIWARA

IPC: C03C27/06 ,  B32B3/26 ,  B32B7/08 ,  B32B17/06 ,  C03B23/023

CPC classification number: C03C27/06 ,  B32B3/26 ,  B32B7/08 ,  B32B17/06 ,  C03B23/023 ,  B32B2457/20 ,  B32B2605/00

Abstract: A glass substrate includes a thin portion having a first surface and a second surface opposed to the first surface, a thick portion having a first surface and a second surface opposed to the first surface and having a sheet thickness t3 that is larger than a sheet thickness t2 of the thin portion, a connection portion having a first connection surface and a second connection surface, the first connection surface connecting the first surface of the thin portion to the first surface of the thick portion, the second connection surface connecting the second surface of the thin portion to the second surface of the thick portion. The first connection surface has a curvature radius of more than or equal to 400 μm.

公开(公告)号：US20230271879A1

公开(公告)日：2023-08-31

申请号：US18174179

申请日：2023-02-24

Applicant: AGC Inc.

Inventor： Yusuke FUJIWARA ,  Yoichi TAKATO ,  Yusuke KOBAYASHI

IPC: C03C21/00 ,  C03C10/00

CPC classification number: C03C21/002 ,  C03C10/0027

Abstract: The present invention relates to a chemically strengthened glass, satisfying: a ratio ICS (≥400)/ICS being more than 0.13 in a stress profile, the ICS representing an integrated value of compressive stress in a region from a surface of the glass to a depth where the compressive stress becomes 0 in the stress profile, and the ICS (≥400) representing an integrated value of compressive stress in a region from a depth of 400 μm from the surface of the glass to the depth where the compressive stress becomes 0 in the stress profile.