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公开(公告)号：US20240368028A1
公开(公告)日：2024-11-07
申请号：US18289369
申请日：2022-08-10
Inventor： Zhiyao TANG , Yongyan LI , Jiafang WANG , Yanping ZHANG
Abstract: The disclosure belongs to the technical field of glass fibers, and specifically relates to a glass fiber composition with low dielectric loss. The content of each component of the composition is as follows: 50-60% of SiO2; 20-30% of B2O3; 8-18% of Al2O3; 1-6% of CaO; 0.2-1.50% of F2; 0.05-0.5% of SnO2; 0.05-0.5% of Li2O; and K2O+Na2O≤0.05%. In the disclosure, SnO2 and F2 are both added, and the ratio of F2/SnO2 is controlled, such that not only glass fibers have relatively low dielectric constant and dielectric loss, but also the viscosity of the glass fibers is reduced, so that the number of bubbles in the glass fibers is zero. According to the disclosure, various components interact with one another, such that the glass fiber composition obtained has the low dielectric constant, low dielectric loss, few bubbles, low viscosity, and excellent glass performance.
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公开(公告)号：US20240368025A1
公开(公告)日：2024-11-07
申请号：US18771189
申请日：2024-07-12
Applicant: AGC Inc.
Inventor： Shuhei NOMURA , Kazutaka ONO
Abstract: The present invention relates to a substrate having a dielectric loss tangent (A) as measured at 20° C. and 10 GHz of 0.1 or less, a dielectric loss tangent (B) as measured at 20° C. and 35 GHz of 0.1 or less, and a ratio [a dielectric loss tangent (C) as measured at an arbitrary temperature in a range of −40 to 150° C. and at 10 GHz]/[the dielectric loss tangent (A)] of 0.90-1.10, or a substrate having a relative permittivity (a) as measured at 20° C. and 10 GHz of 4 or more and 10 or less, a relative permittivity (b) as measured at 20° C. and 35 GHz of 4 or more and 10 or less, and a ratio [a relative permittivity (c) as measured at an arbitrary temperature in a range of −40 to 150° C. and at 10 GHz]/[the relative permittivity (a)] of 0.993-1.007.
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公开(公告)号：US20230348317A1
公开(公告)日：2023-11-02
申请号：US18025053
申请日：2021-09-02
Applicant: Nippon Electric Glass Co., Ltd.
Inventor： Ryota SUZUKI
Abstract: A glass according to the present invention is characterized by having a rate of change of 30% or less in a dielectric loss tangent at a measurement temperature of 25° C. and a measurement frequency of 2.45 GHz after being subjected to a constant temperature/constant humidity test for 1000 hours at a temperature of 85° C. and a relative humidity of 85%.
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公开(公告)号：US11168022B2
公开(公告)日：2021-11-09
申请号：US16181715
申请日：2018-11-06
Applicant: TDK CORPORATION
Inventor： Shusaku Umemoto , Takashi Suzuki , Hidekazu Sato , Masaki Takahashi , Shinichi Kondo
IPC: C03C10/00 , C03C4/16 , H01F27/32 , H01F41/02 , H01F27/28 , H01F41/04 , H01F27/29 , H01F17/00 , H01F41/12
Abstract: A glass ceramics sintered body includes a glass phase and a ceramics phase dispersed in the glass phase. The ceramics phase includes alumina grains and zirconia grains. The glass phase includes an MO—Al2O3—SiO2—B2O3 based glass, where M is an alkaline earth metal. An area ratio of the alumina grains is 13 to 30%, and an area ratio of the zirconia grains is 0.05 to 6%, on a cross section of the sintered body.
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公开(公告)号：US11136260B2
公开(公告)日：2021-10-05
申请号：US16377270
申请日：2019-04-08
Applicant: SCHOTT AG
Inventor： Ulf Dahlmann , Sabine Pichler-Wilhelm , Jens Suffner , Simone Monika Ritter
IPC: C03C4/08 , C03C3/118 , C03C3/085 , C03C3/064 , C03C4/12 , C03C4/14 , C03C4/16 , A61K6/77 , C03C4/00
Abstract: The invention relates to a radiopaque glass having a refractive index nd of 1.480 to 1.561, this glass, apart from impurities at most, being free from SrO and PbO. The glass is based on the SiO2, Al2O3 and B2O3 system. The radiopacity can be adjusted using Cs2O in particular in combination with BaO and/or SnO2 optionally in conjunction with fluorine. The glass may be used in particular as dental glass or as optical glass.
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Patent Agency Ranking
公开(公告)号：US20200255324A1
公开(公告)日：2020-08-13
申请号：US16860107
申请日：2020-04-28
Applicant: AGC Inc.
Inventor： Nobutaka KIDERA , Kazuya SASAKI , Yasutomi IWAHASHI
Abstract: A silica glass for a radio-frequency device has an OH group concentration being less than or equal to 300 wtppm; an FQ value being higher than or equal to 90,000 GHz at a frequency of higher than or equal to 25 GHz and lower than or equal to 30 GHz; and a slope being greater than or equal to 1,000 in a case where the FQ value is approximated as a linear function of the frequency in a frequency band of higher than or equal to 20 GHz and lower than or equal to 100 GHz.
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7.发明申请公开(公告)号：US20190380767A1
公开(公告)日：2019-12-19
申请号：US16334233
申请日：2017-11-14
Applicant: Medtronic Advanced Energy LLC
Inventor： Xiaoming CHENG , Himanshu K. BHATT , Zahedul HUQ
Abstract: A vitreous enamel coating for an electrosurgical metal cutting blade, the coating having a coefficient of thermal expansion substantially near the coefficient of thermal expansion of the metal cutting blade. Selection of materials having similar coefficients of thermal expansion results in an electrosurgical cutting blade with an improved insulating layer, substantially improved durability, or both.
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公开(公告)号：US20190144329A1
公开(公告)日：2019-05-16
申请号：US16097033
申请日：2016-11-01
Inventor： Yoshiyuki INAKA , Takaharu MIYAZAKI , Yoshito NAWA , Daisuke NISHINAKA , Tomoki SEKIDA
Abstract: A glass composition of the present disclosure includes, in wt %, 50≤SiO2≤54, 25≤B2O3≤30, 12≤Al2O3≤15, 0.5≤MgO≤1.9, 3.0≤CaO≤5.5, 0≤ZnO≤3.5, 0.1≤Li2O≤0.5, and 0.1≤Na2O≤0.3, and has a permittivity of less than 5.0 at a frequency of 1 MHz. The glass composition of the present disclosure has a low permittivity. The use of this glass composition can reduce the occurrence of devitrification and the inclusion of bubbles in glass fibers to be formed or in a shaped glass material to be formed even when the glass fibers have a small fiber diameter or the shaped glass material has a small thickness.
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公开(公告)号：US20190047904A1
公开(公告)日：2019-02-14
申请号：US16163686
申请日：2018-10-18
Applicant: SCHOTT AG
Inventor： Oliver FRITZ , Georg MEIER , Thomas FINK
CPC classification number: C03C8/24 , C03C3/068 , C03C4/16 , C03C10/0036 , C03C10/0054 , C03C2204/00 , H01B3/087 , H01B17/305 , H01B17/58 , H05K999/99
Abstract: A lead-through or connecting element is provided that includes an assembly having a carrier body of a high-temperature alloy, a functional element, and an at least partially crystallized glass. The crystallized glass is between a portion of the functional element and a portion of the carrier body. The carrier body subjects the crystallized glass to a compressive stress of greater than or equal to zero, at a temperature from at least 20° C. to more than 450° C. Also provided are a method for producing a lead-through or connecting element, the use of such a lead-through or connecting element, and to a measuring device including such a lead-through or connecting element.
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公开(公告)号：US10074456B2
公开(公告)日：2018-09-11
申请号：US14725660
申请日：2015-05-29
Inventor： Matthew Sgriccia , Mark Challingsworth , Samson Shahbazi , Ryan Persons , Steven Grabey
IPC: C03C8/02 , C03C8/24 , C03C3/062 , C03C3/083 , H01B3/08 , H01B19/02 , C03C3/064 , C03C3/091 , C03C4/16 , C03C8/16 , C03C8/20 , H01G4/10 , H01G4/12 , H01C17/065
CPC classification number: H01B3/087 , C03C3/062 , C03C3/064 , C03C3/091 , C03C4/16 , C03C8/16 , C03C8/20 , C03C2207/08 , H01B19/02 , H01C17/06533 , H01G4/105 , H01G4/129
Abstract: A dielectric glass composition suitable for use in an electronic device which comprises a sufficient amount of silicon dioxide to impart durability to the glass composition when subject to a humid environment, and one or more alkali metal oxides, wherein (i) the total content of the alkali metal oxides is at least about 10 wt % and no more than about 35 wt %, based upon 100% total weight of the glass composition, (ii) the median particle size (d50) of the glass composition is no more than about 5 μm, and (iii) the glass composition has a coefficient of thermal expansion of at least about 10 ppm/K and no more than about 25 ppm/K, is provided.
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