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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
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.
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2.
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
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.
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3.
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
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.
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