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    • 3. 发明授权
    • Heater mechanism for crystal pulling apparatus
    • 拉晶机加热机构
    • US5887015A
    • 1999-03-23
    • US763883
    • 1996-12-11
    • Nobuaki MitamuraToshiharu UesugiAtsushi IwasakiShinobu Takeyasu
    • Nobuaki MitamuraToshiharu UesugiAtsushi IwasakiShinobu Takeyasu
    • C30B15/14C03B5/027
    • C30B15/14
    • A heater mechanism for a crystal pulling apparatus is disclosed. Electrodes made of copper or the like and disposed under a heater are connected to the heater via graphite members. A cover member is attached to each graphite member, so that the downwardly extending portion of the cover member surrounds the outer surface of the graphite member. Accordingly, a leak or splash of a melt is prevented from contacting the electrodes. The length of each graphite member is equal to or greater than the distance between the bottom surface of the heater and the top surface of a melt spill tray which distance is measured when the heater mechanism is raised The cover member is vertically slidable along the outer surface of each graphite member. Thus, even when a material melt leaks out from a crucible, the electrodes of the heater mechanism can be protected from a fusion damage or the like which would be otherwise caused by the leak of the melt.
    • 公开了一种用于晶体拉制装置的加热器机构。 设置在加热器下方的由铜等制成的电极通过石墨部件连接到加热器。 盖构件附接到每个石墨构件,使得盖构件的向下延伸的部分围绕石墨构件的外表面。 因此,防止熔体的泄漏或飞溅与电极接触。 每个石墨构件的长度等于或大于加热器的底表面和熔体溢出托盘的上表面之间的距离,该加热器机构升高时测量的距离。盖构件沿着外表面可垂直滑动 的每个石墨构件。 因此,即使当材料熔体从坩埚中泄漏出来时,也可以保护加热器机构的电极免受由熔体泄漏引起的熔融损伤等的​​影响。
    • 4. 发明授权
    • Single crystal production apparatus and single crystal production method having pedestal with grooves
    • 具有凹槽的基座的单晶制造装置和单晶制造方法
    • US09422635B2
    • 2016-08-23
    • US13977864
    • 2012-01-05
    • Atsushi IwasakiSusumu SonokawaShinobu Takeyasu
    • Atsushi IwasakiSusumu SonokawaShinobu Takeyasu
    • C30B15/30C30B15/10C30B15/00C30B29/06
    • C30B15/10C30B15/00C30B15/30C30B29/06Y10T117/1072
    • A single crystal production apparatus using the Czochralski method, includes: a crucible for holding raw material melt; a pedestal that supports the crucible and can be moved upward and downward; a crucible rotating shaft for rotating the crucible via the pedestal; and a melt receiver that is disposed below the crucible and provided with a center sleeve surrounding the pedestal, wherein, on the outer periphery of the pedestal, two or more grooves for preventing the raw material melt leaking from the crucible from dripping are provided. The single crystal production apparatus and single crystal production method can reliably prevent melt from reaching a metal portion below the pedestal even when the raw material melt in the crucible flows to the outside of the crucible in an unexpected accident or the like and runs down along the pedestal and thereby prevent damage to the apparatus and the occurrence of an accident.
    • 使用切克劳斯基法的单晶制造装置包括:用于保持原料熔融的坩埚; 支撑坩埚并能够向上和向下移动的基座; 用于经由基座旋转坩埚的坩埚旋转轴; 以及设置在所述坩埚下方并且设置有围绕所述基座的中心套筒的熔体接收器,其中,在所述基座的外周上设置有用于防止原料熔融物从所述坩埚中漏出的两个或更多个凹槽。 即使在坩埚中熔融的原料在意外的事故等中流动到坩埚的外部并且沿着该坩埚的下方向下流动,单晶生产装置和单晶生产方法也可以可靠地防止熔体到达基座下方的金属部分 从而防止设备损坏和发生事故。
    • 5. 发明申请
    • SINGLE CRYSTAL PRODUCTION APPARATUS AND SINGLE CRYSTAL PRODUCTION METHOD
    • 单晶生产设备和单晶生产方法
    • US20130276693A1
    • 2013-10-24
    • US13977864
    • 2012-01-05
    • Atsushi IwasakiSusumu SonokawaShinobu Takeyasu
    • Atsushi IwasakiSusumu SonokawaShinobu Takeyasu
    • C30B15/10C30B15/30
    • C30B15/10C30B15/00C30B15/30C30B29/06Y10T117/1072
    • A single crystal production apparatus using the Czochralski method, includes: a crucible for holding raw material melt; a pedestal that supports the crucible and can be moved upward and downward; a crucible rotating shaft for rotating the crucible via the pedestal; and a melt receiver that is disposed below the crucible and provided with a center sleeve surrounding the pedestal, wherein, on the outer periphery of the pedestal, two or more grooves for preventing the raw material melt leaking from the crucible from dripping are provided. The single crystal production apparatus and single crystal production method can reliably prevent melt from reaching a metal portion below the pedestal even when the raw material melt in the crucible flows to the outside of the crucible in an unexpected accident or the like and runs down along the pedestal and thereby prevent damage to the apparatus and the occurrence of an accident.
    • 使用切克劳斯基法的单晶制造装置包括:用于保持原料熔融的坩埚; 支撑坩埚并能够向上和向下移动的基座; 用于经由基座旋转坩埚的坩埚旋转轴; 以及设置在所述坩埚下方并且设置有围绕所述基座的中心套筒的熔体接收器,其中,在所述基座的外周上设置有用于防止原料熔融物从所述坩埚中漏出的两个或更多个凹槽。 即使在坩埚中熔融的原料在意外的事故等中流向坩埚的外部时,单晶生产装置和单晶制造方法也可以可靠地防止熔体到达基座下方的金属部分,并且沿着 从而防止设备损坏和发生事故。
    • 8. 发明申请
    • IMAGE HEATING APPARATUS AND PRESSURE ROLLER USED FOR IMAGE HEATING APPARATUS
    • 用于图像加热装置的图像加热装置和压力滚子
    • US20110237413A1
    • 2011-09-29
    • US13154600
    • 2011-06-07
    • Hiroyuki SakakibaraNorio HashimotoHiroaki SakaiAtsushi IwasakiYuko SekiharaKazuo KishinoMasaaki TakahashiKatsuhisa Matsunaka
    • Hiroyuki SakakibaraNorio HashimotoHiroaki SakaiAtsushi IwasakiYuko SekiharaKazuo KishinoMasaaki TakahashiKatsuhisa Matsunaka
    • F28F5/02
    • G03G15/206G03G2215/2035
    • A pressure roller forming a nip portion for contacting to a heating member to pinch and convey and heat recording material includes: a core metal and an elastic layer containing filler, the elastic layer containing the filler including thermal conductive filler with length of not less than 0.05 mm and not more than 1 mm and with thermal conductivity λf in the longitudinal direction in a range of λf≧500 W/(m·k) being dispersed in not less than 5 vol. % and not more than 40 vol % and the elastic layer containing the filler providing thermal conductivity λy in the longitudinal direction perpendicular to a recording material conveyance direction being λy≧2.5 W/(m·k) and ASKER-C hardness of the filler being not more than 60 degrees, wherein a solid rubber elastic layer with thermal conductivity λ in a thickness direction being not less than 0.16 W/(m·k) and not more than 0.40 W/(m·k) is included and the solid rubber elastic layer is formed on an outer periphery of the core metal and the elastic layer containing the filler is formed on the outer periphery of the solid rubber elastic layer. As a result, a pressure roller which can suppress temperature rise in a region, where recording material does not pass, stabilizes conveyability, provides high endurance, provides high thermal conductivity and low hardness is provided.
    • 形成用于与加热构件接触以夹持和传送和加热记录材料的压区的压辊包括:芯金属和含有填料的弹性层,所述弹性层包含长度不小于0.05的导热填料的填料 mm且不大于1mm,并且在λf≥500W/(m·k)的范围内的长度方向的热导率λf分散在5体积%以上。 %且不大于40体积%,并且包含在垂直于记录材料输送方向的纵向方向上提供热导率λy的填料的弹性层为λy≥2.5W/(m·k),填料的ASKER-C硬度为 不超过60度,其中包括厚度方向上的热导率λ的固体橡胶弹性层不小于0.16W /(m·k)且不大于0.40W /(m·k),并且固体橡胶 在芯金属的外周形成弹性层,在固体橡胶弹性层的外周形成含有填料的弹性层。 结果,可以抑制记录材料不通过的区域中的温度升高的压力辊稳定输送性,提供高耐久性,提供高导热性和低硬度。