公开(公告)号：US20250066244A1

公开(公告)日：2025-02-27

申请号：US18945637

申请日：2024-11-13

Applicant: AGC Inc.

Inventor： Kenji IMAKITA ,  Shusaku AKIBA

IPC: C03C21/00 ,  C03C3/085

Abstract: A glass for chemical strengthening including, in mol % in terms of oxides: 50% to 65% of SiO2; 15% to 25% of Al2O3; 2% to 10% of B2O3; 0% to 15% of P2O5; 0% to 15% of ZnO; 0% to 10% of MgO; 0% to 15% of CaO; 3% to 15% of Li2O; 2.5% to 15% of Na2O; 0% to 5% of K2O; 0% to 5% of ZrO2; 0% to 5% of Y2O3; and 0% to 5% of TiO2, in which [Li2O]/([Na2O]+[K2O]) is 0.5 to 3.5, and [Al2O3]+[Li2O] is 27% to 35%, provided that in the formulas, [ ] indicates a content of each component described in the parentheses in mol % in terms of oxides.

公开(公告)号：US20240391826A1

公开(公告)日：2024-11-28

申请号：US18792612

申请日：2024-08-02

Applicant: AGC Inc.

Inventor： Hiroyuki HIJIYA ,  Takato KAJIHARA ,  Eriko MAEDA ,  Shusaku AKIBA ,  Chieko SUZUKI ,  Kenji IMAKITA

IPC: C03C21/00 ,  C03C3/087

Abstract: A chemically strengthened glass in which a base glass composition of the chemically strengthened glass includes, in terms of molar percentage based on oxides: 55% to 75% of SiO2; 8% to 20% of Al2O3; 3% to 15% of Li2O; 1% to 5% of Na2O; 0% to 3% of K2O; 0% to 10% of MgO; 0% to 3% of Y2O3; 0% to 3% of ZrO2; 0% to 10% of CaO; 0% to 5% of SrO; 0% to 5% of ZnO; 0% to 3% of TiO2; 0% to 1% of SnO2; 0% to 5% of P2O5; and 0% to 10% of B2O3, a ratio [ZrO2]/([Y2O3]+[ZrO2]) is 0 or more and 0.7 or less, and the total content of Y2O3 and ZrO2 is 0.0% or more and 3.0% or less, and a value of 1nW represented by the Formula (1) is 10 or more and 20 or less.

公开(公告)号：US20240375490A1

公开(公告)日：2024-11-14

申请号：US18779802

申请日：2024-07-22

Applicant: AGC Inc.

Inventor： Takato KAJIHARA ,  Shigeki SAWAMURA ,  Shusaku AKIBA ,  Yutaka KUROIWA

IPC: B60J1/02 ,  B32B7/02 ,  B32B17/10 ,  B32B27/30 ,  B60J1/00 ,  C03C3/087 ,  C03C3/091 ,  C03C3/095 ,  C03C4/00

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.

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

IPC: C03C3/097 ,  C03C10/00 ,  C03C3/085 ,  C03C3/093 ,  C03C3/091

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.

公开(公告)号：US20230060972A1

公开(公告)日：2023-03-02

申请号：US18045935

申请日：2022-10-12

Applicant: AGC Inc.

Inventor： Takumi UMADA ,  Yusuke FUJIWARA ,  Shusaku AKIBA

IPC: C03C21/00 ,  C03C10/00

Abstract: The present invention relates to a chemically strengthened glass article including: a first surface; a second surface facing the first surface; and an end portion in contact with the first surface and the second surface, in which the first surface has a compressive stress value of 400 MPa to 1000 MPa, in which, when a compressive stress value of an inside of the glass is expressed with a depth from the first surface as a variable, a depth m [μm] at which the compressive stress value is maximum is larger than 0 μm, and a value of CSm−CS0 [MPa] is 30 MPa or more, and in which a depth DOL at which the compressive stress value is 0 is 50 μm to 150 μm.