公开(公告)号：US20230234881A1

公开(公告)日：2023-07-27

申请号：US18127309

申请日：2023-03-28

Applicant: AGC Inc.

Inventor： Satoshi KANASUGI ,  Kazutaka YANAGIHARA ,  Hiroshi KOMATSU ,  Suguru TAKAYASHIKI

IPC: C03C3/087 ,  B60K37/04 ,  G02B1/10

CPC classification number: C03C3/087 ,  B60K37/04 ,  G02B1/10

Abstract: To suppress reduction in rigidity. A cover material has a curvature in a first direction X and a curvature in a second direction Y. The curvature in the first direction X and the curvature in the second direction Y intersect with each other on a plane of the cover material 10. The radius of curvature of the curvature in the first direction X is 60 mm or more and 300 mm or less. The radius of curvature of the curvature in the second direction Y is 1000 mm or more and 14000 mm or less.

公开(公告)号：US20240279103A1

公开(公告)日：2024-08-22

申请号：US18652972

申请日：2024-05-02

Applicant: AGC Inc.

Inventor： Takanori FUKUSHI ,  Mizuki MATSUOKA ,  Hiroshi KOMATSU ,  Satoshi KANASUGI

IPC: C03B23/03 ,  C03C10/00 ,  C03C21/00

CPC classification number: C03B23/03 ,  C03C10/00 ,  C03C10/0027 ,  C03C10/0054 ,  C03C21/002

Abstract: The present invention relates to a glass ceramic having a three-dimensional shape including a plurality of round shapes including a minimum round shape having an average curvature radius of 5.0×102 mm or less and a maximum round shape having an average curvature radius of 1.0×103 mm or more, in which the glass ceramic has a sheet thickness t [mm], and a value obtained by dividing a maximum value of retardation [nm] measured by the following measurement method by the sheet thickness t [mm] is 50 [nm/mm] or less, measurement method: retardation is measured using a birefringence measuring device by vertically irradiating one or more points on an arc of each of the round shapes with light having a wavelength of 543 nm.

公开(公告)号：US20230202901A1

公开(公告)日：2023-06-29

申请号：US18171509

申请日：2023-02-20

Applicant: AGC Inc.

Inventor： Hiroshi KOMATSU ,  Takanori FUKUSHI ,  Satoshi KANASUGI ,  Hitomi FURUTA ,  Shiro FUNATSU

IPC: C03B23/03 ,  C03C10/00 ,  C03C21/00

CPC classification number: C03B23/03 ,  C03C10/00 ,  C03C21/002 ,  C03C2204/00 ,  C03B32/02

Abstract: The present invention relates to a glass in which: the glass is a crystallized glass; the glass has a difference log η−log η0 (dPa·s) between a logarithm log η (dPa·s) of bulk viscosity η (dPa·s) and a logarithm log η0 (dPa·s) of local viscosity η0 (dPa·s) of larger than 0 and 1.8 or smaller, in a temperature range in which the logarithm log η0 (dPa·s) of the bulk viscosity η (dPa·s) is 11.4 or larger and 12.7 or smaller.