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公开(公告)号:US10889521B2
公开(公告)日:2021-01-12
申请号:US16514447
申请日:2019-07-17
Applicant: AGC INC.
Inventor: Maya Hatano , Kazuhiko Yamanaka , Satoshi Kanasugi
IPC: C03B23/025 , C03C21/00
Abstract: A glass plate, curved around a first axis, has a first surface being concave and a second surface being convex. In a cross sectional view of a plane perpendicular to the first axis, both end portions of the second surface are chemically strengthened. Compressive stress produced by ion exchange in the both end portions of the second surface is larger than that of the first surface. An X axis includes a line segment connecting one end point and a point, most distant from the one end point, on the cross section of the second surface. A Y axis passes a center point of the line segment, and positive direction is from a first surface toward a second surface. A second-order coefficient of a quadratic curve that approximates second-order differential values of a locus of a partial shape in a positive Y value region in the cross section is negative.
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公开(公告)号:US11613490B2
公开(公告)日:2023-03-28
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.
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公开(公告)号:US11299420B2
公开(公告)日:2022-04-12
申请号:US16361959
申请日:2019-03-22
Applicant: AGC Inc.
Inventor: Takanori Fukushi , Satoshi Kanasugi , Toru Ikeda
IPC: C03C15/00 , C03B23/025 , B60R11/02
Abstract: A glass article including a first main surface, a second main surface, and an end face, in which: the glass article includes an antiglare layer on the first main surface side; the antiglare layer has a glass transition point Tg of equal to or less than a glass transition point Tg0 of the glass article at a center portion in a cross section along a thickness direction; and the first main surface has a protrusion diameter y (μm) that satisfies the relation (1) with respect to a 60° specular gloss (gloss value) x (%) of the first main surface, y>−0.0245x+3.65 (1).
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公开(公告)号:US11940685B2
公开(公告)日:2024-03-26
申请号:US16950391
申请日:2020-11-17
Applicant: AGC Inc.
Inventor: Maya Hatano , Satoshi Kanasugi , Masao Ozeki
IPC: G02F1/1335 , C03C15/00 , C03C21/00 , G02F1/1333
CPC classification number: G02F1/133502 , C03C15/00 , C03C21/002 , G02F1/133331
Abstract: An antiglare transparent substrate includes a transparent substrate which includes a chemically strengthened glass and has a first main surface and a second main surface. The first main surface includes: a first smooth region having an arithmetic average roughness Ra of 0.05 nm or more and 2 nm or less; and a first rough region having an arithmetic average roughness Ra larger than the arithmetic average roughness Ra of the first smooth region. The second main surface includes, in at least a part of a region facing the first smooth region, a second smooth region having an arithmetic average roughness Ra of 0.05 nm or more and 2 nm or less.
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公开(公告)号:US11535548B2
公开(公告)日:2022-12-27
申请号:US16386317
申请日:2019-04-17
Applicant: AGC INC.
Inventor: Suguru Murayama , Satoshi Kanasugi , Madoka Ono
IPC: C03C3/083 , C03B23/03 , C03C3/085 , C03C3/087 , C03C3/091 , C03C3/093 , C03C3/097 , C03C21/00 , C03B23/035 , C03B23/025
Abstract: A glass for chemical strengthening has a Young's modulus E of 70 GPa or more. The glass satisfies X1+X2+X3 being 1760 or less. Here, X1 is a numerical value equivalent to a value [unit: kPa/° C.] obtained by multiplying the Young's modulus E by an average coefficient α of thermal expansion at 50° C. to 350° C., X2 is a numeral value equivalent to a value of a temperature Tf [unit: ° C.] at which a viscosity of the glass reaches 100 MPa·s, and X3 is a numerical value equivalent to a value of a difference [unit: 105 Pa·s] between the viscosity (100 MPa·s) at the Tf and a viscosity η+10 at a temperature 10° C. higher than the Tf.
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公开(公告)号:US11066321B2
公开(公告)日:2021-07-20
申请号:US16184271
申请日:2018-11-08
Applicant: AGC INC.
Inventor: Takanori Fukushi , Satoshi Kanasugi , Masao Ozeki
Abstract: The present invention relates to a mold including a master mold having a first region master mold molding surface having a shape corresponding to a first region of a molded body, and a second region master mold molding surface having a shape corresponding to a second region of the molded body, and in which the master mold includes: an inner mold having the first region master mold molding surface; an outer mold having an accommodating concave portion capable of accommodating the inner mold therein and the second region master mold molding surface on at least a part of an outer edge of the accommodating concave portion; and a buffer material provided between the inner mold and a bottom surface of the accommodating concave portion, the buffer material being pressed and deformed with relative movement of the inner mold and the outer mold.
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公开(公告)号:US11761799B2
公开(公告)日:2023-09-19
申请号:US18057784
申请日:2022-11-22
Applicant: AGC INC.
Inventor: Shusaku Akiba , Masao Ozeki , Satoshi Takeda , Satoshi Kanasugi , Satoshi Ogami
CPC classification number: G01D11/26 , B32B17/10137 , G01D11/245
Abstract: A sensor module includes: a base member; at least one of a single or a plurality of sensors and vibrators arranged on the base member; and a protective member constituted of at least one flat surface or a curved surface, provided so as to cover the at least one of the sensors and the vibrators. A part or whole of the protective member is formed of a strengthened glass and the strengthened glass is a chemically strengthened glass or a physically strengthened glass.
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公开(公告)号:US11543271B2
公开(公告)日:2023-01-03
申请号:US17476601
申请日:2021-09-16
Applicant: AGC INC.
Inventor: Shusaku Akiba , Masao Ozeki , Satoshi Takeda , Satoshi Kanasugi , Satoshi Ogami
Abstract: A sensor module includes: a base member; at least one of a single or a plurality of sensors and vibrators arranged on the base member; and a protective member constituted of at least one flat surface or a curved surface, provided so as to cover the at least one of the sensors and the vibrators. A part or whole of the protective member is formed of a strengthened glass and the strengthened glass is a chemically strengthened glass or a physically strengthened glass.
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公开(公告)号:US10766803B2
公开(公告)日:2020-09-08
申请号:US15703586
申请日:2017-09-13
Applicant: AGC Inc.
Inventor: Makoto Fujii , Satoshi Kanasugi , Naofumi Aoyama
Abstract: A method for producing a bent glass article includes a heat treatment step of heat-treating a bent glass. The bent glass includes a first main stir-face, a second main surface and an end face. In the heat treatment step, the bent glass is supported by a support jig with one of the main surfaces facing downward. The support jig supports at least a part of one of the main surfaces or the end face in a higher position than the lowest position of one of the main surfaces.
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公开(公告)号:US11204266B2
公开(公告)日:2021-12-21
申请号:US16727070
申请日:2019-12-26
Applicant: AGC INC.
Inventor: Shusaku Akiba , Masao Ozeki , Satoshi Takeda , Satoshi Kanasugi , Satoshi Ogami
Abstract: A sensor module includes: a base member; at least one of a single or a plurality of sensors and vibrators arranged on the base member; and a protective member constituted of at least one flat surface or a curved surface, provided so as to cover the at least one of the sensors and the vibrators. A part or whole of the protective member is formed of a strengthened glass and the strengthened glass is a chemically strengthened glass or a physically strengthened glass.
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