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    • 7. 发明授权
    • Optical waveguide and method for fabricating the same
    • 光波导及其制造方法
    • US06996324B2
    • 2006-02-07
    • US10432920
    • 2002-09-18
    • Masahiro HirakaShigeo Furukawa
    • Masahiro HirakaShigeo Furukawa
    • G02B6/00G02B6/10C03B37/022C03B37/033C03B37/075
    • G02B6/138G02B6/02042G02B6/10G02B6/12G02B6/132G02B6/25G02B2006/12176
    • An optical waveguide comprising cladding 1 and core segment 20 buried in cladding 1 and serving as a waveguide, wherein a combination of glass material constituting the core segment 20 and another glass material constituting the cladding 1 is so selected that an absolute value of difference in coefficient of thermal expansion between these materials (α1-α2) is within a range of 0 and 9×10−7° C., where α1 denotes a coefficient of thermal expansion of the former material and α2 denotes that of the latter material. Since this makes possible to bond directly the glass materials having different refraction factors and different coefficients of thermal expansion, and to produce the optical waveguide at even a lower temperature as compared to the prior art method as an upper cladding layer is formed with the sputtering method, it realizes reduction in number of processes and time of manufacture, thereby providing the optical waveguide of low transmission loss at low cost, as well as a method of manufacturing the same.
    • 光波导包括覆盖层和掩埋在包覆层中并用作波导的芯部分。 选择构成芯部分的玻璃材料和构成包覆层的另一种玻璃材料的组合,使得这些材料(α1-α2)之间的热膨胀系数差的绝对值在0和9×10 < SUP> -7℃,其中α1表示前者材料的热膨胀系数,α2表示后者材料的热膨胀系数。
    • 9. 发明授权
    • Process for producing spherical glass
    • 球形玻璃制造工艺
    • US07240518B2
    • 2007-07-10
    • US10477152
    • 2002-12-25
    • Masahiro HirakaShigeo FurukawaMitsuhiro Fujita
    • Masahiro HirakaShigeo FurukawaMitsuhiro Fujita
    • C03B19/10C03C3/00
    • C03C3/00C03B19/1045C03B19/1055C03B19/109Y02P40/57
    • The apparatus for producing glass beads of the present invention comprises a melting pot 2 for heating and melting glass, a nozzle 2A for dripping molten glass 4 in the melting pot 2, which is disposed at the bottom of the melting pot 2, and a liquid glass droplet receiver 11 filled with cooling solution 150 for cooling the liquid glass droplet 10 dripped from the nozzle 2A, which is disposed under the nozzle 2A, wherein the cooling solution 150 is made from a material that forms a bubble layer around the liquid glass droplet 10 as the cooling solution 150 is vaporized due to the heat of the liquid glass droplet 10 during a period when the liquid glass droplet 10 is cooled down to a temperature lower than the glass transfer temperature in the cooling solution 150.
    • 本发明的玻璃珠制造装置包括:熔融玻璃用熔融炉2,熔融锅2内的熔融玻璃4滴落用喷嘴2A,配置在熔池2的底部, 液体玻璃液滴接收器11填充有冷却溶液150,用于冷却从喷嘴2A下方的喷嘴2A滴下的液体玻璃液滴10,其中冷却溶液150由围绕着形成气泡层的材料制成 在液体玻璃液滴10被冷却到低于冷却溶液150中的玻璃转移温度的温度期间,由于液体玻璃液滴10的热量,冷却溶液150的液体玻璃液滴10蒸发。
    • 10. 发明授权
    • Glass-ceramic composition, and electronic component and multilayer LC composite component using the same
    • 玻璃陶瓷组合物,以及使用其的电子部件和多层LC复合部件
    • US06623845B1
    • 2003-09-23
    • US09763109
    • 2001-04-20
    • Hidenori KatsumuraRyuichi SaitoMasahiro Hiraka
    • Hidenori KatsumuraRyuichi SaitoMasahiro Hiraka
    • B32B1700
    • C03C3/095C03C14/004Y10T428/12528Y10T428/24926
    • A multilayer LC composite component includes a glass-ceramic composition and internal electrodes containing silver or copper as a main component. The multilayer LC composite component is outstanding in mounting reliability particularly to a resin substrate, easy to manufacture, and has excellent electric characteristics at high frequency. The glass-ceramic composition includes 45 to 35 wt. % of forsterite powder and 55 to 65 wt. % of glass composite powder, and compositions of the glass composite powder include 40 to 50 wt. % of SiO2, 30 to 40 wt. % of BaO, 3 to 8 wt. % of Al2O3, 8 to 12 wt. % of La2O3, and 3 to 6 wt. % of B2O3. It is high in flexural strength, moderately high in coefficient of thermal expansion, easy to use in manufacturing a greensheet, and densely sintered at a temperature of less than 950 degrees C.
    • 多层LC复合部件包括玻璃 - 陶瓷组合物和含有银或铜作为主要成分的内部电极。 多层LC复合部件在树脂基板的安装可靠性方面突出,易于制造,并且在高频下具有优异的电特性。 玻璃 - 陶瓷组合物包含45至35wt。 %的镁橄榄石粉和55〜65wt。 %的玻璃复合粉末,玻璃复合粉末的组成为40〜50wt。 SiO 2%,30〜40wt。 %的BaO,3〜8wt。 %的Al 2 O 3,8〜12wt。 %的La 2 O 3和3〜6wt。 %的B2O3。 弯曲强度高,热膨胀系数适中,易于用于制造毛坯,并且在低于950℃的温度下致密烧结。