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公开(公告)号：US20240383801A1
公开(公告)日：2024-11-21
申请号：US18659387
申请日：2024-05-09
Applicant: AGC Inc.
Inventor： Yusuke KATAOKA , Yusuke FUJIWARA
IPC: C03C21/00
Abstract: A chemically strengthened glass having a thickness t [mm], in which a compressive stress layer depth DOC [μm] is 160t [μm] or more, and a value CS90/ICT [μm−1] obtained by dividing CS90 [MPa] which is a compressive stress value at a depth of 90 μm from a surface of the chemically strengthened glass by a tensile stress integrated value ICT [MPa·μm] is 0.0012 μm−1 or more.
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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
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.
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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
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.
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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
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.
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