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    • 2. 发明授权
    • Apparatus and method of growing single crystal
    • 生长单晶的装置和方法
    • US5363796A
    • 1994-11-15
    • US837202
    • 1992-02-18
    • Sumio KobayashiShunji MiyaharaToshiyuki FujiwaraTakayuki KuboHideki FujiwaraShuichi Inami
    • Sumio KobayashiShunji MiyaharaToshiyuki FujiwaraTakayuki KuboHideki FujiwaraShuichi Inami
    • C30B15/00C30B15/14C30B15/10
    • C30B29/06C30B15/14Y10T117/1068
    • An apparatus for growing a single crystal having a crucible, two heaters arranged at the outside of the crucible and along the vertical direction, a heat shield placed at the outside of the heaters, a radiation shield for shielding the single crystal from the radiation heat, and an upper heat shield for preventing the upward heat, transfer of the heaters. In the apparatus, a melted layer and solid layer of raw material are formed in the upper and lower portions of the crucible, respectively. While melting the solid layer, the single crystal is pulled up. The lower portion of the heat shield is thinner than the upper portion. The ratio of the height to the diameter of the crucible is 0.85 or more. The melting amount of the solid layer is controlled in the pulling process according to the non-segregation condition in the variable-thickness melted layer method. The oxygen concentration of the pulled single crystal is controlled in the pulling process by adjusting the rotation speed and rotation direction of the crucible.
    • 一种用于生长具有坩埚的单晶的装置,设置在坩埚外部并沿着垂直方向的两个加热器,设置在加热器外部的隔热罩,用于将单晶屏蔽在放射线上的辐射屏蔽, 以及用于防止加热器的向上热传递的上部隔热罩。 在该装置中,在坩埚的上部和下部分别形成熔融层和原料固体层。 在熔化固体层时,单晶被拉起。 隔热罩的下部比上部薄。 坩埚的高度与直径之比为0.85以上。 根据可变厚度熔融层法中的非偏析条件,在拉伸过程中控制固体层的熔融量。 通过调节坩埚的旋转速度和旋转方向,在牵引过程中控制拉出的单晶的氧浓度。
    • 7. 发明授权
    • Fixing structure of a pulley unit
    • 滑轮单元的固定结构
    • US06676548B2
    • 2004-01-13
    • US10033049
    • 2001-10-25
    • Hideki Fujiwara
    • Hideki Fujiwara
    • F16H1304
    • F16H7/20F16H55/36F16H55/49
    • In a fixing structure of a pulley unit in which the pulley unit is attached to a part from which a rotary shaft that is inserted into and is rotatably supported by a central hole of a housing protrudes in a state where the rotary shaft is protruded from an end face of the housing, a housing side end portion of the pulley unit is inserted into an opening side area in the central hole of the housing so that an outer peripheral face of the housing side end portion of the pulley unit overlays an inner peripheral face of the opening side area in the central hole of the housing in a shaft center direction.
    • 在滑轮单元的固定结构中,其中,滑轮单元被安装在从壳体的中心孔插入并可旋转地支撑的旋转轴的旋转轴在旋转轴从其中突出的状态下突出的部分 滑轮单元的壳体侧端部插入到壳体的中心孔的开口侧区域,使得滑轮单元的壳体侧端部的外周面与内周面 在轴中心方向上的壳体的中心孔中的开口侧区域。