公开(公告)号：US11192815B2

公开(公告)日：2021-12-07

申请号：US15977396

申请日：2018-05-11

Applicant: AGC Inc.

Inventor： Makoto Fujii ,  Satoshi Kanasugi

IPC: C03B23/023 ,  C03B23/035 ,  C03B23/025

Abstract: A method for manufacturing a bent substrate, which forms a bent part in at least a part of a substrate, in which the substrate includes a second region and a first region, the method for manufacturing including: supporting the first region of the substrate on a substrate support surface of a support member including a mold surface having a same curved surface shape as that of the bent part and the substrate support surface that supports the first region, in a state of facing the second region of the substrate to the mold surface; heating the second region of the substrate to soften the second region of the substrate by the heating; placing the second region along the mold surface of the support member by an own weight of the second region; and transferring the curved surface shape of the mold surface to the second region by an external force.

公开(公告)号：US11073715B2

公开(公告)日：2021-07-27

申请号：US15714239

申请日：2017-09-25

Applicant: AGC Inc.

Inventor： Takanori Fukushi ,  Satoshi Kanasugi ,  Makoto Fujii ,  Toru Ikeda

IPC: G02F1/1335 ,  G02B5/02 ,  G02B1/115 ,  C03B23/025 ,  C03C17/00 ,  C03C21/00 ,  C03C17/25 ,  C03B25/02 ,  C03C3/085 ,  C03B40/00 ,  C03B23/035 ,  C03C3/087 ,  C03C15/00 ,  C03B23/03 ,  C03B29/02 ,  G02F1/1333

Abstract: A method for producing a glass article from a glass member including a glass substrate including a first main surface, a second main surface and an end face, and an irregular layer formed in at least one of main surfaces, includes forming an irregular layer having a glass transition point Tg which is equal to or lower than a glass transition point in a central part of the glass member in a thickness-direction sectional view and performing a heat treatment on the glass member so as to have an equilibrium viscosity in the central part of the glass member in thickness-direction sectional view of 1017 Pa·s or lower.

公开(公告)号：US10703666B2

公开(公告)日：2020-07-07

申请号：US16123112

申请日：2018-09-06

Applicant: AGC Inc.

Inventor： Satoshi Kanasugi ,  Takanori Fukushi ,  Shunji Wachi

IPC: C03B23/03

Abstract: Provided is a molding die for 3D cover glass containing a pair of a convex mold and a concave mold each having a flat press surface A and a press surface B, in which the closest distance D between the press surfaces A of the convex mold and the concave mold during press-molding and the closest distance D1 between the press surfaces B of the convex mold and the concave mold during press-molding satisfy a predetermined conditions with respect to the plate thickness of a 3D cover glass as a final product.

公开(公告)号：US10556818B2

公开(公告)日：2020-02-11

申请号：US15665463

申请日：2017-08-01

Applicant: AGC Inc.

Inventor： Makoto Fujii ,  Kenichi Masuda ,  Satoshi Kanasugi ,  Naoki Hashitani

IPC: C03B23/02 ,  C03C21/00 ,  C03B23/035 ,  C03B23/023 ,  C03B23/00 ,  C03C3/085 ,  C03C3/091 ,  G02B27/01

Abstract: A plate-like glass includes a chemically strengthened glass having a first surface, a second surface facing the first surface, and an end surface connecting the first surface and second surface. When a tangential direction from an arbitrary point on the first surface is assumed to be an X-axis, a direction orthogonal to the X-axis is assumed to be a Y-axis, and a direction orthogonal to the X-axis and the Y-axis is assumed to be a Z-axis, the X-axis is a direction in which a first curvature radius R1 in cross-section of the first surface in an XZ plane passing the X-axis and Z-axis is minimum. The first surface has a curvature part in which the surface is bent in the X-axis direction on the first surface and the first curvature radius R1 is within a specific range.

公开(公告)号：US10336642B2

公开(公告)日：2019-07-02

申请号：US15632892

申请日：2017-06-26

Applicant: AGC Inc.

Inventor： Shingo Endo ,  Makoto Fujii ,  Satoshi Kanasugi ,  Shosuke Kimura

IPC: C03B23/00 ,  C03B23/023 ,  C03B29/08 ,  C03C3/087 ,  C03C3/085 ,  C03C3/097 ,  C03C15/00 ,  C03C17/30 ,  C03C21/00

Abstract: A method for manufacturing a formed glass includes using a heating apparatus. The heating apparatus includes a heating element and a heat reservoir having a transmittance of 50% or more in a wavelength of 0.5 μm to 2.5 μm. The heat reservoir is arranged between the heating element and a glass substrate as an object to be heated. The glass substrate is heated with the heating element, and the glass substrate is formed into a desired shape.