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公开(公告)号：US20220312555A1
公开(公告)日：2022-09-29
申请号：US17840254
申请日：2022-06-14
Applicant: AGC Inc.
Inventor： Terutaka MAEHARA , Akifumi NIWA , Shuntaro HYODO , Yukihito AKITA , Takashi ENOMOTO , Yoji DOI , Roger PAULI , Lawrence KEEN
Abstract: A heater includes a heat generating member being conductive and configured to radiate heat rays by being fed with electric power, and a tubular member constituting of a metal and accommodating the heat generating member, wherein the heat generating member is composed of a material containing carbon at 80% or more by mass, the tubular member is composed of a material including one or more selected from platinum, rhodium, tungsten, iridium, and molybdenum, and an insulating material is not provided between the heat generating member and the tubular member.
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公开(公告)号：US20200299180A1
公开(公告)日：2020-09-24
申请号：US16819753
申请日：2020-03-16
Applicant: AGC INC.
Inventor： Motoyuki HIROSE , Takashi ENOMOTO
Abstract: An alkali-free glass substrate contains, as represented by mass % based on oxides: 54% to 66% of SiO2; 10% to 23% of Al2O3; 6% to 12% of B2O3; and 8% to 26% of MgO+CaO+SrO+BaO. The alkali-free glass substrate has β-OH of 0.15 mm−1 to 0.5 mm−1, and a Cl content of 0.1 to 0.35 mass %. A bubble growth index I of the alkali-free glass substrate given by the following formula is 280 or more: I=590.5×[β-OH]+874.1×[Cl]5.7×[B2O3]−33.3. In the formula, [β-OH] is β-OH of the alkali-free glass substrate in mm−1, [Cl] is the Cl content of the alkali-free glass substrate in mass %, and [B2O3] is a B2O3 content of the alkali-free glass substrate in mass %.
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Patent Agency Ranking
公开(公告)号：US20250115507A1
公开(公告)日：2025-04-10
申请号：US18984128
申请日：2024-12-17
Applicant: AGC Inc.
Inventor： Terutaka MAEHARA , Akifumi NIWA , Shuntaro HYODO , Takashi ENOMOTO , Takeshi YAMAZAKI , Yoji DOI , Roger PAULI , Lawrence KEEN
Abstract: According to the present invention, provided is a heater including a heat generating member being conductive and configured to radiate heat rays by being fed with electric power, a tubular member constituted by a metal and accommodating the heat generating member, and an intermediate member arranged between the heat generating member and the tubular member and constituted by an electrically insulating material, wherein the intermediate member is arranged and/or configured to allow, among the heat rays radiated from the heat generating member, at least light having a wavelength of from 1 μm to 2 μm to pass through the intermediate member to reach the tubular member.
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公开(公告)号：US20210078892A1
公开(公告)日：2021-03-18
申请号：US17098983
申请日：2020-11-16
Applicant: AGC Inc.
Inventor： Terutaka MAEHARA , Akifumi NIWA , Shuntaro HYODO , Takashi ENOMOTO , Takeshi YAMAZAKI , Yoji DOI , Roger PAULI , Lawrence KEEN
Abstract: According to the present invention, provided is a heater including a heat generating member being conductive and configured to radiate heat rays by being fed with electric power, a tubular member constituted by a metal and accommodating the heat generating member, and an intermediate member arranged between the heat generating member and the tubular member and constituted by an electrically insulating material, wherein the intermediate member is arranged and/or configured to allow, among the heat rays radiated from the heat generating member, at least light having a wavelength of from 1 μm to 2 μm to pass through the intermediate member to reach the tubular member.
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公开(公告)号：US20220312554A1
公开(公告)日：2022-09-29
申请号：US17840263
申请日：2022-06-14
Applicant: AGC Inc.
Inventor： Terutaka MAEHARA , Akifumi NIWA , Shuntaro HYODO , Yukihito AKITA , Takashi ENOMOTO , Yoji DOI , Roger PAULI , Lawrence KEEN
Abstract: A heater for melting glass includes: a heating member containing carbon (C) configured to emit heat rays upon power feeding; and a tubular member made of metal configured to have one end closed, and to house the heating member. The heating member includes a first heat generating part and a second heat generating part along an extending axis direction of the heater, and the first heat generating part is arranged at a position closer to the one end of the tubular member than is the second heat generating part. Denoting a unit-length resistance of the first heat generating part along the extending axis direction by X (Ω/m), and denoting a unit-length resistance of the second heat generating part by Y (Ω/m), ( 1/30)X
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公开(公告)号：US20220298048A1
公开(公告)日：2022-09-22
申请号：US17805309
申请日：2022-06-03
Applicant: AGC Inc.
Inventor： Terutaka MAEHARA , Akifumi NIWA , Takashi ENOMOTO , Shuntaro HYODO , Yoji DOI
Abstract: An apparatus for transferring molten glass includes a wall including a refractory material and a metal layer provided on an inside of the refractory material, the metal layer coming into contact with the molten glass, and the metal layer being configured to guide the molten glass, the apparatus including a heater including a metal cover protruding to an inside of the wall, the metal cover coming into contact with the molten glass, the heater including a heat generating element electrically insulated from the metal cover, and the heat generating element receiving electric power to radiate heat rays to heat the metal cover from an inside.
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公开(公告)号：US20200299179A1
公开(公告)日：2020-09-24
申请号：US16819696
申请日：2020-03-16
Applicant: AGC INC.
Inventor： Motoyuki HIROSE , Takashi ENOMOTO
Abstract: An alkali-free glass substrate contains, as represented by mass % based on oxides: 54% to 68% of SiO2; 10% to 25% of Al2O3; 0.1% to 5.5% of B2O3; and 8% to 26% of MgO+CaO+SrO+BaO. The alkali-free glass substrate has β-OH of 0.15 mm−1 to 0.35 mm−1, and a Cl content of 0.15 to 0.3 mass %. A bubble growth index I of the alkali-free glass substrate given by the following formula is 320 or more: I=590.5×[β-OH]+874.1×[Cl]−5.7×[B2O3]−33.3. In the formula, [β-OH] is β-OH of the alkali-free glass substrate in mm−1, [Cl] is the Cl content of the alkali-free glass substrate in mass %, and [B2O3] is a B2O3 content of the alkali-free glass substrate in mass %.
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