公开(公告)号：US20210053862A1

公开(公告)日：2021-02-25

申请号：US17075368

申请日：2020-10-20

Applicant: AGC Inc.

Inventor： Jun ITO ,  Ikuo NAGASAWA

IPC: C03B33/09 ,  B23K26/352 ,  C03B33/033 ,  B23K26/53 ,  B28D1/22 ,  C03B33/02 ,  B23K26/55 ,  B23K26/00 ,  C03C21/00 ,  C03C23/00

Abstract: A glass plate, containing: a first main surface and a second main surface opposite to each other, wherein an in-plane void region having a plurality of voids is arranged on the first main surface, a plurality of internal void rows each having one void or two or more voids are arranged from the in-plane void region toward the second main surface, and a cut surface obtained by cutting the glass plate to pass through the in-plane void region and the plurality of internal void rows has a compressive stress layer formed by applying a chemical strengthening treatment in the center of the cut surface.

公开(公告)号：US20220212986A1

公开(公告)日：2022-07-07

申请号：US17702168

申请日：2022-03-23

Applicant: AGC Inc.

Inventor： Jun ITO ,  Ikuo NAGASAWA

IPC: C03C23/00 ,  C03C17/32 ,  C03C21/00 ,  B23K26/55 ,  C03B33/09 ,  B23K26/38 ,  C03C17/30 ,  C03B33/02

Abstract: A manufacturing method of a glass article having an organic film includes irradiating a first main surface of a glass plate having the first main surface and a second main surface, opposite each other, with a laser light of a first laser, to form an in-plane void region, in which voids are arrayed, on the first main surface, and internal void arrays, including voids arrayed from the in-plane void region to the second main surface, in the glass plate;
depositing the organic film on the first main surface or the second main surface of the glass plate; and irradiating and scanning the first main surface or the second main surface, on which the organic film was deposited, with a laser light of a second laser, along the in-plane void region, to separate the glass article from the glass plate along the in-plane void region.

公开(公告)号：US20220274211A1

公开(公告)日：2022-09-01

申请号：US17747971

申请日：2022-05-18

Applicant: AGC Inc.

Inventor： Isao SAITO ,  Takuma FUJIWARA ,  Jun ITO ,  Ikuo NAGASAWA ,  Takeaki ONO

IPC: B23K26/53 ,  B23K26/073 ,  B23K26/06 ,  B23K26/00

Abstract: A glass plate processing method for dividing a glass plate by a separation line that divides a main surface of the glass plate into two regions, includes: moving an irradiation point of a first laser beam along the separation line, and forming a crack extending from the separation line diagonally with respect to the main surface, in a cross-section orthogonal to the separation line; after the crack is formed, moving an irradiation point of a second laser beam along the separation line, and forming a modified portion, in the cross-section, on a virtual line extending in a direction perpendicular to the main surface, from a tip of the crack towards a center of a thickness of the glass plate; and after the modified portion is formed, applying stress to the glass plate and forming a new crack spanning from the tip of the crack to the modified portion.