公开(公告)号：US20240345432A1

公开(公告)日：2024-10-17

申请号：US18752898

申请日：2024-06-25

Applicant: AGC Inc.

Inventor： Yuji IMOTO ,  Yusuke FUJIWARA

IPC: G02F1/1333 ,  C03C15/00 ,  C03C23/00

CPC classification number: G02F1/133331 ,  C03C15/00 ,  C03C23/0025 ,  G02F2201/50

Abstract: The present invention pertains to a glass having a first main surface and a second main surface opposite to the first main surface. The glass has a thick region and a thin region that is adjacent to the thick region, has a recessed surface in the second main surface, and is thinner than the thick region. The thin region includes: a bottom region which is flat on the second main surface side in a state where the first main surface is fixed so as to make contact with a flat surface; and a stepped region provided between the bottom region and the thick region. The thin region satisfies a specific formula (1).

公开(公告)号：US20230122091A1

公开(公告)日：2023-04-20

申请号：US18066488

申请日：2022-12-15

Applicant: AGC Inc.

Inventor： Izuru KASHIMA ,  Yuji IMOTO

IPC: C03C21/00 ,  C03C19/00 ,  C03C15/00

Abstract: A glass structure includes: a glass substrate that includes a thick portion and a thin portion thinner than the thick portion; and a filler that covers a step surface formed by difference in height between the thick portion and the thin portion. A refractive index difference at a wavelength of 555 nm between the glass substrate and the filler is 0.008 or less in an absolute value. A refractive index difference at a wavelength of 507 nm between the glass substrate and the filler is 0.008 or less in an absolute value.

公开(公告)号：US20220306528A1

公开(公告)日：2022-09-29

申请号：US17656470

申请日：2022-03-25

Applicant: AGC INC.

Inventor： Yuji IMOTO ,  Yusuke FUJIWARA

IPC: C03C21/00 ,  C03C15/00

Abstract: The present invention relates to a chemically strengthened glass including alkali metal ions, having a thickness of 0.20 mm or smaller, and having a pair of major surfaces that are opposed to each other and have been subjected to a chemically strengthening treatment, in which at least one of the pair of major surfaces has a core roughness depth Sk of 0.90 nm or smaller and a mean summit curvature Ssc of 13.0×10−4/nm or smaller.