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    Method of producing MnZn-base ferrite
    1.
    发明授权
    Method of producing MnZn-base ferrite 有权
    生产MnZn基铁素体的方法

    公开(公告)号：US07713465B2

    公开(公告)日：2010-05-11

    申请号：US12053082

    申请日：2008-03-21

    申请人： Shenglei Che ,  Kentaro Mori ,  Masahiko Watanabe ,  Takuya Aoki ,  Tomofumi Kuroda

    发明人： Shenglei Che ,  Kentaro Mori ,  Masahiko Watanabe ,  Takuya Aoki ,  Tomofumi Kuroda

    IPC分类号： C04B33/32

    CPC分类号： H01F1/344 ,  C01G49/0018 ,  C01G49/009 ,  C01G53/006 ,  C01P2002/52 ,  C01P2006/80 ,  C04B35/265 ,  C04B35/6262 ,  C04B35/62695 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3262 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/3418 ,  C04B2235/5427 ,  C04B2235/656 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/6584

    摘要： Provided is a process for producing a MnZn-base ferrite comprising: firing a compacted raw material to produce the MnZn-base ferrite, wherein the firing comprises, in the following order: a heating phase comprising gradually bringing a firing temperature from room temperature up to a maximum temperature; a maximum temperature holding phase comprising maintaining the maximum temperature for a period of time, wherein a partial pressure of oxygen (p2) at the maximum temperature holding phase is greater than an equilibrium partial pressure of oxygen (p1) as follows: p2>p1, wherein the equilibrium partial pressure of oxygen (p1) is represented by the following equation: log(p1)=log(PO2)=a−b/T, wherein PO2 is measured in a unit of %, and T is measured in a unit of absolute temperature K; and a cooling phase comprising gradually bringing the maximum temperature down to near room temperature, wherein a partial pressure of oxygen (p3) at the cooling phase is operated at an equilibrium partial pressure of oxygen based on the equation log(p3)=a−b/T.

    摘要翻译： 提供了一种MnZn基铁素体的制造方法，其特征在于，包括：烧结压实的原料以制造所述MnZn基铁氧体，其中所述烧制按以下顺序包括：加热阶段，包括逐渐使焙烧温度从室温升至 最高温度; 最大温度保持阶段包括将最高温度保持一段时间，其中在最高温度保持阶段的氧分压（p2）大于氧的平衡分压（p1），如下：p2> p1， 其中氧的平衡分压（p1）由以下等式表示：log（p1）= log（PO2）= a-b / T，其中PO2以％为单位测量，T以单位测量 绝对温度K; 和冷却阶段，其包括使最高温度逐渐降至接近室温，其中在冷却阶段的氧（p3）分压基于等式log（p3）= a-b在氧的平衡分压下操作 / T。

    NiMnZn based ferrite
    3.
    发明授权
    NiMnZn based ferrite 失效
    NiMnZn基铁素体

    公开(公告)号：US08282853B2

    公开(公告)日：2012-10-09

    申请号：US12564483

    申请日：2009-09-22

    申请人： Kentaro Mori ,  Takuya Aoki

    发明人： Kentaro Mori ,  Takuya Aoki

    IPC分类号： H01F1/34

    CPC分类号： H01F1/344 ,  C04B35/265 ,  C04B35/62685 ,  C04B2235/3208 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3263 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3418 ,  C04B2235/656 ,  C04B2235/77 ,  C04B2235/786 ,  H01F1/36 ,  H01F41/0246

    摘要： A novel NiMnZn-based ferrite which can reduce magnetic loss (core loss) at a high frequency of about 2 MHz or higher and achieve higher saturated magnetic flux density while forming high sintered density is provided. The NiMnZn-based ferrite contains a main component comprising 54.0 to 57.5 mol % of iron oxide in terms of Fe2O3, 2.0 to 7.0 mol % of zinc oxide in terms of ZnO, 0.5 to 4.7 mol % of nickel oxide in terms of NiO, and a remainder of manganese oxide (in terms of MnO); and an accessory component comprising 100 to 1000 ppm by weight of Si in terms of SiO2, 800 to 3000 ppm by weight of Ca in terms of CaCO3, and 520 to 1000 ppm by weight of Nb in terms of Nb2O5 with respect to the main component; while having an average ferrite crystal particle size of 2.1 to 8.5 μm.

    摘要翻译： 提供了一种新型的基于NiMnZn的铁氧体，其可以在形成高烧结密度的同时，在大约2MHz或更高的高频下降低磁损耗（磁芯损耗）并获得更高的饱和磁通密度。 NiMnZn系铁氧体含有以Fe2O3为54.0〜57.5摩尔％的氧化铁，以ZnO为2.0〜7.0摩尔％的氧化锌，NiO为0.5〜4.7摩尔％的氧化镍的主成分，以及 剩余的氧化锰（以MnO计）; 以及以SiO 2为100〜1000ppm的Si，以CaCO 3计为800〜3000质量ppm的Ca，相对于主成分为Nb 2 O 5的Nb为520〜1000质量ppm的Nb ; 而平均铁素体晶粒度为2.1〜8.5μm。

    NiMnZn-BASED FERRITE
    4.
    发明申请
    NiMnZn-BASED FERRITE 失效

    公开(公告)号：US20100078587A1

    公开(公告)日：2010-04-01

    申请号：US12564483

    申请日：2009-09-22

    申请人： Kentaro Mori ,  Takuya Aoki

    发明人： Kentaro Mori ,  Takuya Aoki

    IPC分类号： H01F1/01

    CPC分类号： H01F1/344 ,  C04B35/265 ,  C04B35/62685 ,  C04B2235/3208 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3263 ,  C04B2235/3279 ,  C04B2235/3284 ,  C04B2235/3418 ,  C04B2235/656 ,  C04B2235/77 ,  C04B2235/786 ,  H01F1/36 ,  H01F41/0246

    摘要： A novel NiMnZn-based ferrite which can reduce magnetic loss (core loss) at a high frequency of about 2 MHz or higher and achieve higher saturated magnetic flux density while forming high sintered density is provided. The NiMnZn-based ferrite contains a main component comprising 54.0 to 57.5 mol % of iron oxide in terms of Fe2O3, 2.0 to 7.0 mol % of zinc oxide in terms of ZnO, 0.5 to 4.7 mol % of nickel oxide in terms of NiO, and a remainder of manganese oxide (in terms of MnO); and an accessory component comprising 100 to 1000 ppm by weight of Si in terms of SiO2, 800 to 3000 ppm by weight of Ca in terms of CaCO3, and 520 to 1000 ppm by weight of Nb in terms of Nb2O5 with respect to the main component; while having an average ferrite crystal particle size of 2.1 to 8.5 μm.

    摘要翻译： 提供了一种新型的基于NiMnZn的铁氧体，其可以在形成高烧结密度的同时，在大约2MHz或更高的高频下降低磁损耗（磁芯损耗）并获得更高的饱和磁通密度。 NiMnZn系铁氧体含有以Fe2O3为54.0〜57.5摩尔％的氧化铁，以ZnO为2.0〜7.0摩尔％的氧化锌，NiO为0.5〜4.7摩尔％的氧化镍的主成分，以及 剩余的氧化锰（以MnO计）; 以及以SiO 2为100〜1000ppm的Si，以CaCO 3计为800〜3000质量ppm的Ca，相对于主成分为Nb 2 O 5的Nb为520〜1000质量ppm的Nb ; 而平均铁素体晶粒度为2.1〜8.5μm。

    MnMgCuZn ferrite material
    8.
    发明授权
    MnMgCuZn ferrite material 有权
    MnMgCuZn铁氧体材料

    公开(公告)号：US06200493B1

    公开(公告)日：2001-03-13

    申请号：US09271432

    申请日：1999-03-18

    申请人： Taku Murase ,  Takuya Aoki ,  Naoyoshi Sato ,  Isao Kanada

    发明人： Taku Murase ,  Takuya Aoki ,  Naoyoshi Sato ,  Isao Kanada

    IPC分类号： C01G4900

    CPC分类号： C04B35/2625 ,  H01F1/344

    摘要： There is disclosed an MnMgCuZn ferrite material which contains ranges of 46.5 to 50.4 mol % of iron oxide, 10.5 to 22.0 mol % of magnesium oxide, 22.5 to 25.0 mol % of zinc oxide, 6.0 to 16.0 mol % of copper oxide, and 0.1 to 3.5 mol % of manganese oxide. Advantages of an MnMgCuZn ferrite material that resistivity is relatively high and material cost is low are utilized to realize a superior MnMgCuZn ferrite material which is much smaller in magnetic loss than conventional materials of the same series and which has a sufficient saturated magnetic flux density.

    摘要翻译： 公开了MnMgCuZn铁氧体材料，其含有氧化铁46.5〜50.4摩尔％，氧化镁10.5〜22.0摩尔％，氧化锌22.5〜25.0摩尔％，氧化铜6.0〜16.0摩尔％，氧化铜0.1〜 3.5mol％的氧化锰。 利用电阻率相对较高且材料成本低的MnMgCuZn铁氧体材料的优点是实现了一种优良的MnMgCuZn铁氧体材料，其磁损耗远低于同一系列的传统材料，且具有足够的饱和磁通密度。

    Electrode structure and electric heater comprising the same
    9.
    发明授权
    Electrode structure and electric heater comprising the same 失效
    电极结构和包括其的电加热器

    公开(公告)号：US6031213A

    公开(公告)日：2000-02-29

    申请号：US567326

    申请日：1995-12-05

    申请人： Shigeharu Hashimoto ,  Tadato Ito ,  Yuichi Shimasaki ,  Hiroaki Kato ,  Takashi Komatsuda ,  Akihisa Saito ,  Takuya Aoki ,  Tetsu Teshirogi

    发明人： Shigeharu Hashimoto ,  Tadato Ito ,  Yuichi Shimasaki ,  Hiroaki Kato ,  Takashi Komatsuda ,  Akihisa Saito ,  Takuya Aoki ,  Tetsu Teshirogi

    IPC分类号： H05K7/00 ,  F01N3/20 ,  F01N13/02 ,  H05B3/08 ,  F01N3/10

    CPC分类号： F01N3/2026 ,  F01N13/009 ,  H05B3/08 ,  Y02T10/26

    摘要： An electrode structure includes: a metallic electrode; a case for accommodating and holding the electrode, and one end of a lead wire connecting to the electrode; and an insulating member interposed between the electrode and the case in order to ensure insulation between the electrode and the case, in which structure a waterproof member is interposed between the case and the lead wire in order to prevent the incoming of water from between the case and the lead wire, and an electric heater havinging the above electrode structure. An electrode structure of an electric heater, includes: a first electrode; a second electrode of a cylinder shape, having a base portion connected with the first electrode and a top end portion connected with a lead wire; an insulating member having a thermal resistance, pierced by the second electrode; an elastic insulator having a thermal resistance, covering at least a portion of the second electrode; a case for accommodating and holding the second electrode, having a predetermined length L; and a rubber sealing member attached to the top end of the case. The electrode structure is preferably used by connecting to a conductive substance accommodated in a metallic housing, to apply electricity to the conductive substance. The conductive substance is preferably a metallic honeycomb structure. The given length L mentioned above is preferably L.gtoreq.40 mm.

    摘要翻译： 电极结构包括：金属电极; 用于容纳和保持电极的壳体，以及连接到电极的引线的一端; 以及插入在电极和壳体之间的绝缘构件，以便确保电极和壳体之间的绝缘，其中防水构件插入在壳体和引线之间的结构中，以防止水从壳体之间进入 和引线，以及具有上述电极结构的电加热器。 电加热器的电极结构包括：第一电极; 圆柱形的第二电极，具有与第一电极连接的基部和与导线连接的顶端部; 具有由第二电极刺穿的热阻的绝缘构件; 具有热阻的弹性绝缘体，其覆盖所述第二电极的至少一部分; 用于容纳和保持具有预定长度L的第二电极的壳体; 以及附接到壳体的顶端的橡胶密封构件。 电极结构优选通过连接到容纳在金属壳体中的导电物质来使用，以向导电物质施加电力。 导电性物质优选为金属蜂窝结构体。 上述给定长度L优选为L≥0.4mm。