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公开(公告)号：US11866365B2
公开(公告)日：2024-01-09
申请号：US17144197
申请日：2021-01-08
Applicant: AGC Inc.
Inventor： Kazutaka Otsuka , Kyushiro Igarashi , Takeshi Shimizu , Minoru Tamada
IPC: B32B15/04 , B32B17/06 , C03C3/087 , G02B1/18 , B60K35/00 , C03B5/183 , C03B5/187 , C03B5/23 , B60K37/02 , C03C3/095 , C03C3/083 , C03C17/34 , C03C17/00 , C03C21/00
CPC classification number: C03C3/087 , B60K35/00 , B60K37/02 , C03B5/183 , C03B5/187 , C03B5/23 , C03C3/083 , C03C3/095 , C03C17/3405 , G02B1/18 , B60K2370/27 , B60K2370/693 , B60K2370/98 , C03C17/00 , C03C21/002 , C03C2204/08
Abstract: The present invention relates to a cover glass for a display, which is a glass plate having a first main surface and a second main surface. The cover glass contains, as represented by mol percentage based on oxides, from 50 to 75% of SiO2, from 5 to 20% of Al2O3, from 2 to 20% of Na2O, from 0 to 6% of K2O, from 0 to 15% of MgO, from 0 to 10% of a total amount (CaO+SrO+BaO) of CaO, SrO and BaO, from 0 to 5% of a total amount (ZrO2+TiO2) of ZrO2 and TiO2, from 0 to 10% of B2O3, and from 0 to 20% of Li2O. The cover glass has a ream minimum distance of 100 mm or more and 1,000 mm or less, and a ream period of 1 mm or more and 30 mm or less.
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公开(公告)号：US12054419B2
公开(公告)日：2024-08-06
申请号：US17335309
申请日：2021-06-01
Applicant: AGC Inc.
Inventor： Kensuke Fujii , Shinji Kobune , Minoru Tamada , Hitoshi Mishiro
IPC: C03C17/34 , C03C3/083 , C03C3/085 , C03C3/087 , C03C4/18 , C03C15/00 , C03C17/42 , C03C21/00 , C09D1/00 , C09D5/00 , C09D5/16 , G02B1/115 , G02B27/00 , G02B5/02
CPC classification number: C03C17/3417 , C03C3/083 , C03C3/085 , C03C3/087 , C03C4/18 , C03C15/00 , C03C17/42 , C03C21/002 , C09D1/00 , C09D5/006 , C09D5/1675 , G02B1/115 , G02B27/0006 , C03C2204/00 , C03C2217/218 , C03C2217/734 , C03C2218/154 , C03C2218/31 , G02B5/0268
Abstract: A cover glass includes: a glass substrate having a convex and concave shape formed on at least one of surfaces thereof by an antiglare treatment; and an antireflection film disposed on the surface of the glass substrate, the surface having the convex and concave shape. In the cover glass, a difference Δa* in a* value between any two points within a surface of the cover glass on the side where the antireflection film is present and a difference Δb* in b* value between any two points within the surface of the cover glass on the side where the antireflection film is present satisfy the following expression: √{(Δa*)2+(Δb*)2}≤4.
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公开(公告)号：US11267750B2
公开(公告)日：2022-03-08
申请号：US16279036
申请日：2019-02-19
Applicant: AGC INC.
Inventor： Masanobu Isshiki , Toru Ikeda , Takaaki Murakami , Yosuke Takeda , Minoru Tamada
Abstract: The present invention relates to a translucent structure having a surface unevenness shape which has: an area ratio of surface flat regions in which an angle formed with a flat surface is in a range of 0° to 0.5° of in a range of 0% to 5.8%; a projection density of in a range of 0.0001/μm2 to 0.05/μm2; a projection area ratio of in a range of 5.5% to 50%; a skewness Ssk which represents the degree of non-symmetry of in a range of −0.5 to 1.1; a load area factor Smr1 at a boundary between a projected mountain portion and a core portion of in a range of 0% to 14.5%; and an arithmetic average surface roughness Sa of in a range of 0.06 μm to 0.143 μm.
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公开(公告)号：US11590844B2
公开(公告)日：2023-02-28
申请号：US15931705
申请日：2020-05-14
Applicant: AGC Inc.
Inventor： Minoru Tamada , Yasuhiro Inoue
Abstract: A glass substrate includes a pair of main surfaces including a first main surface and a second main surface opposed to the first main surface; an edge surface arranged along a direction orthogonal to the pair of main surfaces; and a connecting surface arranged between the first main surface and the edge surface. The connecting surface has a plurality of pores. A difference between a 50% particle diameter of the pores in a portion 20 μm distant from the first main surface and a 50% particle diameter in a portion 20 μm distant from the edge surface is 10 μm or less.
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公开(公告)号：US11339087B2
公开(公告)日：2022-05-24
申请号：US17142088
申请日：2021-01-05
Applicant: AGC Inc.
Inventor： Hitoshi Mishiro , Keiko Koyama , Minoru Tamada
IPC: C03C17/42 , C03C15/00 , C03C19/00 , C03C17/30 , C03C21/00 , C03C15/02 , G02B1/18 , C09D5/16 , G02B1/11 , C09D5/00
Abstract: An antiglare glass substrate includes a glass substrate having a first main surface and a second main surface that is opposite to the first main surface. The first main surface has undergone an antiglare treatment and a fluorine-containing organosilicon compound coating film as an antifouling film is laminated thereon. The first main surface partly includes a non-antiglare-treated portion that has not undergone the antiglare treatment. The non-antiglare-treated portion has a surface roughness Ra of less than 10 nm. A difference in height along a plate thickness direction of the glass substrate between the antiglare-treated portion that has undergone the antiglare treatment and the non-antiglare-treated portion is 10 μm or larger and 200 μm or less.
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Patent Agency Ranking
公开(公告)号：US10816840B2
公开(公告)日：2020-10-27
申请号：US16251396
申请日：2019-01-18
Applicant: AGC Inc.
Inventor： Minoru Tamada , Yusuke Kobayashi
IPC: G02F1/1333 , G02F1/1335 , G02B5/00 , B29D11/00 , G01J3/46 , H01J29/89 , B32B17/06 , G01B11/00 , B60R1/08 , G02B27/01 , B60J3/00
Abstract: The present invention relates to a glass plate including a first main surface subjected to antiglare treatment, and a second main surface opposed to the first main surface, in which a clarity index value T, a reflection image diffusiveness index value R and an anti-sparkle index value S satisfy respective relations of: clarity index value T≥0.8; reflection image diffusiveness index value R≥0.01; and anti-sparkle index value S≥0.85; and a transmission haze measured by a method according to JIS K 7136 (2000) being 15% or less. The glass plate of the present invention is excellent in clarity, reflection image diffusiveness and anti-sparkle, and also excellent in reproducibility of color.
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公开(公告)号：US10310142B2
公开(公告)日：2019-06-04
申请号：US14799039
申请日：2015-07-14
Applicant: AGC Inc.
Inventor： Minoru Tamada , Yusuke Kobayashi , Tomonobu Senoo
Abstract: There is provided an optical device including a display device, and a transparent substrate that is disposed on a side of a display surface of the display device. When the transparent substrate is evaluated by using a three index values of a resolution index value T, a reflection image diffusiveness index value R, and a sparkle index value S, the following conditions are satisfied: the resolution index value T≤0.2, the reflection image diffusiveness index value R≥0.2, and the sparkle index value S≤60.
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公开(公告)号：US11644706B2
公开(公告)日：2023-05-09
申请号：US16718633
申请日：2019-12-18
Applicant: AGC INC.
Inventor： Hitoshi Mishiro , Takehiko Nose , Minoru Tamada , Yohei Kawai , Naoya Wada
IPC: G02F1/1335 , G02F1/1333 , C03C15/00 , C03C17/30
CPC classification number: G02F1/133502 , C03C15/00 , C03C17/30 , G02F1/133308 , G02F1/133331
Abstract: The present invention relates to a glass plate which is provided with a first main surface, and a second main surface which faces the first main surface. An antiglare portion and a non-antiglare portion are provided to the first main surface. The average lengths (RSm) of elements of roughness curves of the antiglare portion and the non-antiglare portion are respectively 1 μm or higher. The difference between the RSm of the antiglare portion and the RSm of the non-antiglare portion is 100 μm or lower.
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公开(公告)号：US10981827B2
公开(公告)日：2021-04-20
申请号：US15934023
申请日：2018-03-23
Applicant: AGC INC
Inventor： Hitoshi Mishiro , Keiko Koyama , Minoru Tamada
Abstract: An antiglare glass substrate includes a glass substrate having a first main surface and a second main surface that is opposite to the first main surface. The first main surface has undergone an antiglare treatment and a fluorine-containing organosilicon compound coating film as an antifouling film is laminated thereon. The first main surface partly includes a non-antiglare-treated portion that has not undergone the antiglare treatment. The non-antiglare-treated portion has a surface roughness Ra of less than 10 nm. A difference in height along a plate thickness direction of the glass substrate between the antiglare-treated portion that has undergone the antiglare treatment and the non-antiglare-treated portion is 10 μm or larger and 200 μm or less.
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公开(公告)号：US20190256410A1
公开(公告)日：2019-08-22
申请号：US16279036
申请日：2019-02-19
Applicant: AGC INC.
Inventor： Masanobu ISSHIKI , Toru Ikeda , Takaaki Murakami , Yosuke Takeda , Minoru Tamada
IPC: C03C17/00
Abstract: The present invention relates to a translucent structure having a surface unevenness shape which has: an area ratio of surface flat regions in which an angle formed with a flat surface is in a range of 0° to 0.5° of in a range of 0% to 5.8%; a projection density of in a range of 0.0001/μm2 to 0.05/μm2; a projection area ratio of in a range of 5.5% to 50%; a skewness Ssk which represents the degree of non-symmetry of in a range of −0.5 to 1.1; a load area factor Smr1 at a boundary between a projected mountain portion and a core portion of in a range of 0% to 14.5%; and an arithmetic average surface roughness Sa of in a range of 0.06 μm to 0.143 μm.
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