公开(公告)号：US20210371330A1

公开(公告)日：2021-12-02

申请号：US17445223

申请日：2021-08-17

Applicant: AGC Inc.

Inventor： Akihisa MINOWA ,  Hitoshi SAIKI ,  Shunji WACHI ,  Yusuke ARAI ,  Takahiro MASHIMO

IPC: C03C17/32 ,  C03C3/093 ,  C03C21/00 ,  C03C23/00 ,  C03C17/42

Abstract: An antifouling layer-attached glass substrate includes a glass substrate having a pair of main surfaces facing each other, and an antifouling layer formed on or above at least one main surface of the glass substrate. At the time of measuring an absorbance inside the antifouling layer-attached glass substrate by a Fourier transform infrared spectrophotometer according to ATR method (Attenuated Total Reflection) from a surface on a side where the antifouling layer is formed, in the case where an absorbance value at 3,955 cm−1 is set to 0.10, a value (H2O absorbance) obtained by subtracting, as a base, the absorbance value at 3,955 cm−1 from a peak value of an absorbance peak which appears around 3,400 cm−1 is 0.010 or more.

公开(公告)号：US20220073425A1

公开(公告)日：2022-03-10

申请号：US17469139

申请日：2021-09-08

Applicant: AGC Inc.

Inventor： Seiki OHARA ,  Shunji WACHI ,  Hironobu SATO

IPC: C03C21/00 ,  C03C17/32 ,  G01L1/24

Abstract: The present invention relates to a chemically strengthened glass with a film, including: a chemically strengthened glass having a pair of main surfaces opposing each other; and a film formed on at least one of the main surfaces of the chemically strengthened glass, in which the chemically strengthened glass has two or less interference fringes observed under stress measurement utilizing surface propagation light having a wavelength of 365 nm, and the film has a refractive index lower than a refractive index of the chemically strengthened glass.

公开(公告)号：US20230406763A1

公开(公告)日：2023-12-21

申请号：US18461121

申请日：2023-09-05

Applicant: AGC Inc.

Inventor： Takumi UMADA ,  Qing LI ,  Shunji WACHI

IPC: C03C21/00 ,  C03C23/00 ,  C03C10/00 ,  C03C3/097

CPC classification number: C03C21/002 ,  C03C23/0075 ,  C03C10/0027 ,  C03C3/097

Abstract: The present invention relates to a chemically-strengthened glass having a first main surface and a second main surface, including a glass ceramic including a crystal and a residual glass, having a surface compressive stress value (CS0) of 450 MPa or more, and a compressive stress value (CS50) at a depth of 50 μm of 150 MPa or more, having a plurality of non-through holes having a diameter average value of 5 nm to 50 nm on the first main surface and the second main surface, the non-through holes having a depth average value measured by a cross-sectional SEM image of the first main surface and the second main surface of 5 nm to 50 nm, and having a total area ratio to a total visual field area of a surface SEM image of the first main surface and the second main surface of 1% to 40%.

公开(公告)号：US20200290917A1

公开(公告)日：2020-09-17

申请号：US16887058

申请日：2020-05-29

Applicant: AGC Inc

Inventor： Satoshi KANASUGI ,  Takanori FUKUSHI ,  Shunji WACHI

IPC: C03B23/03

Abstract: A 3D cover glass, having a polygonal shape in a plan view which corner part may comprise a rounded portion, and containing a central part being flat plane, and curved parts each with a three-dimensional curved surface having a curvature radius of 100 mm or less on peripheries of at least two of the sides of the polygonal shape, wherein the 3D cover glass shows the maximum value of retardation per 1 mm thickness being 16 nm/mm or less when measured by irradiating a light having a wavelength of 543 nm onto the central part orthogonally.

公开(公告)号：US20190071343A1

公开(公告)日：2019-03-07

申请号：US16123112

申请日：2018-09-06

Applicant: AGC Inc.

Inventor： Satoshi KANASUGI ,  Takanori FUKUSHI ,  Shunji WACHI

IPC: C03B23/03

CPC classification number: C03B23/0302 ,  C03B23/0307 ,  C03B2215/60

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.