Method for manufacturing a soft magnetic powder material
    3.
    发明授权
    Method for manufacturing a soft magnetic powder material 有权
    软磁性粉末材料的制造方法

    公开(公告)号:US07270718B2

    公开(公告)日:2007-09-18

    申请号:US10993502

    申请日:2004-11-19

    IPC分类号: H01F1/20

    CPC分类号: H01F1/33

    摘要: The invention provides a method for manufacturing a soft magnetic powder material covered by oxide layers at surfaces of the powder, by using a soft magnetic alloy powder containing a soft magnetic powder material and a second element such as Si having an oxidizing reactivity higher than iron, and heating the soft magnetic alloy powder in an atmosphere of a weak oxidizing gas by mixing a weak oxidizing gas in an inert gas, and oxidizing selectively the second element at surface layers of the powder while restraining an oxidation of iron to form thin oxide layers with high electrical resistance.

    摘要翻译: 本发明提供一种通过使用含有软磁性粉末材料的软磁性合金粉末和具有高于铁的氧化反应性的第二元素例如Si来制造在粉末表面上由氧化物层覆盖的软磁性粉末材料的方法, 通过在惰性气体中混合弱氧化气体,在弱氧化气体气氛下加热软磁性合金粉末,并在抑制铁氧化形成薄氧化物层的同时对粉末的表面层选择性地氧化第二元素, 高电阻。

    Method for manufacturing a soft magnetic powder material
    4.
    发明申请
    Method for manufacturing a soft magnetic powder material 有权
    软磁性粉末材料的制造方法

    公开(公告)号:US20050133116A1

    公开(公告)日:2005-06-23

    申请号:US10993502

    申请日:2004-11-19

    CPC分类号: H01F1/33

    摘要: The invention provides a method for manufacturing a soft magnetic powder material covered by oxide layers at surfaces of the powder, by using a soft magnetic alloy powder containing a soft magnetic powder material and a second element such as Si having an oxidizing reactivity higher than iron, and heating the soft magnetic alloy powder in an atmosphere of a weak oxidizing gas by mixing a weak oxidizing gas in an inert gas, and oxidizing selectively the second element at surface layers of the powder while restraining an oxidation of iron to form thin oxide layers with high electrical resistance.

    摘要翻译: 本发明提供一种通过使用含有软磁性粉末材料的软磁性合金粉末和具有高于铁的氧化反应性的第二元素例如Si来制造在粉末表面上由氧化物层覆盖的软磁性粉末材料的方法, 通过在惰性气体中混合弱氧化气体,在弱氧化气体气氛下加热软磁性合金粉末,并在抑制铁氧化形成薄氧化物层的同时对粉末的表面层选择性地氧化第二元素, 高电阻。

    Method for manufacturing soft magnetic material
    5.
    发明申请
    Method for manufacturing soft magnetic material 审中-公开
    软磁材料制造方法

    公开(公告)号:US20060027950A1

    公开(公告)日:2006-02-09

    申请号:US11195848

    申请日:2005-08-03

    IPC分类号: C04B33/32 C04B33/36 C04B35/64

    摘要: The invention provides a method for manufacturing a soft magnetic material, wherein an Fe—Si alloy powder is heated in a weakly oxidizing atmosphere to form a SiO2 oxide film on the surface, and the powder is then press-molded and fired in a weakly oxidizing atmosphere to obtain a sintered product. By performing the surface oxidizing step in a weakly oxidizing atmosphere such as water vapor, Si is selectively oxidized to form a thin oxide film with high electrical resistance. Furthermore, by firing the molded product in a weakly oxidizing atmosphere, the sintering can be performed while the oxide film, in which cracks and the like are generated at the press-molding, is repaired.

    摘要翻译: 本发明提供了一种制造软磁性材料的方法,其中Fe-Si合金粉末在弱氧化气氛中被加热以在表面上形成SiO 2氧化物膜,然后将粉末压制 在弱氧化气氛中成型并烧制,得到烧结体。 通过在诸如水蒸气的弱氧化气氛中进行表面氧化步骤,选择性地氧化Si以形成具有高电阻的薄氧化膜。 此外,通过在弱氧化气氛中烧成模制品,可以进行烧结,同时修复在压制成型时产生裂纹等的氧化膜。

    Partial response transmission system and equalizing circuit thereof
    8.
    发明授权
    Partial response transmission system and equalizing circuit thereof 有权
    部分响应传输系统及其均衡电路

    公开(公告)号:US07590176B2

    公开(公告)日:2009-09-15

    申请号:US11346387

    申请日:2006-02-03

    申请人: Kouichi Yamaguchi

    发明人: Kouichi Yamaguchi

    IPC分类号: H03H7/40

    摘要: A partial response transmission system in which a data signal is transmitted from a transmission side to a reception side through a transmission medium, includes an equalizing circuit provided in the transmission side or the reception side, and configured to adjust a transfer function for an entire system including the transmission medium to a desired transfer function by delaying input data over a plurality of states in units of a period equal to a transition time of a single bit response by the desired transfer function of a partial response transmission and by weighing and adding data in the plurality of stages; and a deciding circuit provided in the reception side and configured to decide an output data from a signal received through the transmission medium through processing under consideration of the desired transfer function.

    摘要翻译: 通过传输媒体将数据信号从发送侧发送到接收侧的部分响应传输系统包括设置在发送侧或接收侧的均衡电路,并且被配置为调整整个系统的传递函数 通过以等于单个位响应的转换时间的周期的单位延迟多个状态的输入数据,通过部分响应传输的期望传输函数来延迟传输介质到所需的传递函数,并且通过称量和添加数据 多个阶段; 以及确定电路,设置在接收侧,并且被配置为通过考虑所需传输函数的处理从通过传输介质接收的信号中确定输出数据。

    Partial response transmission system and equalizing circuit thereof
    9.
    发明申请
    Partial response transmission system and equalizing circuit thereof 有权
    部分响应传输系统及其均衡电路

    公开(公告)号:US20070030890A1

    公开(公告)日:2007-02-08

    申请号:US11346387

    申请日:2006-02-03

    申请人: Kouichi Yamaguchi

    发明人: Kouichi Yamaguchi

    IPC分类号: H03H7/30

    摘要: A partial response transmission system in which a data signal is transmitted from a transmission side to a reception side through a transmission medium, includes an equalizing circuit provided in the transmission side or the reception side, and configured to adjust a transfer function for an entire system including the transmission medium to a desired transfer function by delaying input data over a plurality of states in units of a period equal to a transition time of a single bit response by the desired transfer function of a partial response transmission and by weighing and adding data in the plurality of stages; and a deciding circuit provided in the reception side and configured to decide an output data from a signal received through the transmission medium through processing under consideration of the desired transfer function.

    摘要翻译: 通过传输媒体将数据信号从发送侧发送到接收侧的部分响应传输系统包括设置在发送侧或接收侧的均衡电路,并且被配置为调整整个系统的传递函数 通过以等于单个位响应的转换时间的周期的单位延迟多个状态的输入数据,通过部分响应传输的期望传输函数来延迟传输介质到所需的传递函数,并且通过称量和添加数据 多个阶段; 以及确定电路,设置在接收侧,并且被配置为通过考虑所需传输函数的处理从通过传输介质接收的信号中确定输出数据。

    High-frequency choke coil
    10.
    发明授权
    High-frequency choke coil 失效
    高频扼流圈

    公开(公告)号:US6160465A

    公开(公告)日:2000-12-12

    申请号:US187278

    申请日:1998-11-06

    IPC分类号: H01F17/06 H01F27/34 H01F21/00

    摘要: A soft magnetic core is substantially cylindrical and a linear-shaped coil conductor is inserted through a hole in the central portion of the soft magnetic core. A hard magnetic material sheet has areas which are magnetized in a thickness direction thereof and the areas are arranged in strips so that a magnetization direction of adjacent strips is mutually opposite. The hard magnetic material is wound on the outside surface of the soft magnetic core and is fixed to the soft magnetic core. The direction of the areas formed as strips of the hard magnetic material is substantially perpendicular to the axial direction of the coil conductor.

    摘要翻译: 软磁芯基本上是圆柱形的,并且线状线圈导体通过软磁芯的中心部分中的孔插入。 硬磁性材料板具有沿其厚度方向被磁化的区域,并且这些区域被排列成条状,使得相邻条带的磁化方向相互相反。 硬磁性材料被卷绕在软磁芯的外表面上并固定在软磁芯上。 形成为硬磁性材料的条的区域的方向基本上垂直于线圈导体的轴向。