公开(公告)号：US20240343641A1

公开(公告)日：2024-10-17

申请号：US18631531

申请日：2024-04-10

Applicant: AGC Inc.

Inventor： Kaede KATSUNO ,  Yuha KOBAYASHI ,  Kohei HORIUCHI

IPC: C03C23/00

CPC classification number: C03C23/0025

Abstract: To provide a glass substrate having a surface on which a mark constituted of a plurality of dots is disposed. The dot includes an indentation part as a portion depressed from the surface, and a projecting part projecting from the indentation part in a thickness direction of the glass substrate. The projecting part extends at a position overlapping a contour of the dot or on an inner side than the contour.

公开(公告)号：US20230046712A1

公开(公告)日：2023-02-16

申请号：US17813372

申请日：2022-07-19

Applicant: AGC Inc.

Inventor： Yuha KOBAYASHI ,  Shigeto KUMANO ,  Kaede KATSUNO ,  Keisuke HANASHIMA ,  Kohei HORIUCHI

IPC: C03C23/00

Abstract: A glass substrate 10 has a mark provided on a surface 10A of the glass substrate 10, the mark including plural dots 104, a depth H of each of the dots 104 is 0.5 μm or larger and 7.0 μm or smaller, and an inclination angle of a side surface 104B of each of the dots 104 is 5° or larger and 56° or smaller.