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    Ferrite, and transformer and method for driving it
    1.
    发明授权
    Ferrite, and transformer and method for driving it 有权
    铁氧体，变压器及其驱动方法

    公开(公告)号：US6077453A

    公开(公告)日：2000-06-20

    申请号：US231763

    申请日：1999-01-15

    申请人： Hitoshi Saita ,  Tomofumi Kuroda ,  Shigeo Okamoto ,  Naoyoshi Sato

    发明人： Hitoshi Saita ,  Tomofumi Kuroda ,  Shigeo Okamoto ,  Naoyoshi Sato

    IPC分类号： C01G49/00 ,  C04B35/26 ,  C04B35/38 ,  H01F1/34 ,  H01F27/255 ,  C04D35/26

    CPC分类号： C04B35/2658 ,  H01F1/344 ,  H01F27/255 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3262 ,  C04B2235/3275 ,  C04B2235/3277 ,  C04B2235/3284 ,  C04B2235/3293 ,  C04B2235/3418 ,  C04B2235/604

    摘要： Provided are an Mn--Zn ferrite in which the core loss is low and Bs is high at high temperatures; a transformer capable of being small-sized and suitable to use at high temperatures; and a method for efficiently driving the transformer. Also provided is a transformer capable of being small-sized and suitable to use in a broad temperature range including high temperatures. Further provided are a high-efficiency transformer capable of being small-sized, in which the core loss in the ferrite core is low and the saturation magnetic flux density is high therein at the temperature at which the transformer is driven; and a high-efficiency driving method for the transformer. Depending on its use, Mn--Zn ferrite to be the ferrite core for the transformers comprises, as the essential components, specific amounts of Fe.sub.2 O.sub.3, ZnO and MnO, and, as the side components, specific amounts of SiO.sub.2, CaCO.sub.3, Nb.sub.2 O.sub.5 and ZrO.sub.2. The core of the transformers is made of the Mn--Zn ferrite.

    摘要翻译： 提供一种其中铁损低低并且Bs在高温下高的Mn-Zn铁氧体; 能够小型化并适用于高温使用的变压器; 以及有效地驱动变压器的方法。 还提供了能够小型化并且适合在包括高温的宽温度范围内使用的变压器。 还提供了一种能够在变压器驱动的温度下铁氧体磁芯的磁芯损耗低和饱和磁通密度高的小型高效变压器， 和变压器的高效率驱动方法。 根据其用途，用作变压器的铁氧体磁心的Mn-Zn铁氧体作为必要成分，含有Fe 2 O 3，ZnO，MnO的特定量，作为侧面成分，可以使用特定量的SiO 2，CaCO 3，Nb 2 O 5，ZrO 2 。 变压器的核心由Mn-Zn铁氧体制成。

    Magnetic ferrite material and manufacture method thereof
    2.
    发明授权
    Magnetic ferrite material and manufacture method thereof 失效
    磁性铁氧体材料及其制造方法

    公开(公告)号：US06402979B1

    公开(公告)日：2002-06-11

    申请号：US09628280

    申请日：2000-07-28

    申请人： Hitoshi Saita ,  Tomofumi Kuroda ,  Naoyoshi Sato

    发明人： Hitoshi Saita ,  Tomofumi Kuroda ,  Naoyoshi Sato

    IPC分类号： C04B3526

    CPC分类号： H01F1/344 ,  C04B35/2658

    摘要： There is disclosed a magnetic ferrite material obtained by calcining a raw material, forming a calcined powder into a desired shape and sintering to contain Fe2O3, MnO and ZnO as main components, the magnetic ferrite material with a low power loss is realized by setting the coefficient of variation (CV value) of the content of a Ca component precipitated along a grain boundary in a range of 1 to 60%, and the magnetic ferrite material is manufactured by calcining the raw material containing Fe2O3, MnO and ZnO as the main components to obtain the calcined powder in which that the S component content is in a range of 1 to 200 ppm, and forming the calcined powder into the desired shape and sintering.

    摘要翻译： 公开了通过煅烧原料获得的磁性铁氧体材料，将煅烧粉末形成所需形状并烧结以含有Fe 2 O 3，MnO和ZnO作为主要成分，通过设定系数来实现低功率损耗的磁性铁氧体材料 通过沿着晶界析出的Ca成分含量在1〜60％范围内的变化量（CV值），通过将含有Fe 2 O 3，MnO和ZnO的原料作为主要成分进行煅烧来制造磁性铁氧体材料， 得到S成分含量为1〜200ppm的煅烧粉末，将煅烧粉末形成所需形状并进行烧结。

    Ferrite and inductor
    3.
    发明授权
    Ferrite and inductor 失效
    铁氧体和电感

    公开(公告)号：US6033594A

    公开(公告)日：2000-03-07

    申请号：US112055

    申请日：1998-07-09

    申请人： Yasushi Enokido ,  Ryo Yokoyama ,  Hitoshi Saita ,  Naoyoshi Sato

    发明人： Yasushi Enokido ,  Ryo Yokoyama ,  Hitoshi Saita ,  Naoyoshi Sato

    IPC分类号： C04B35/26 ,  H01F1/34 ,  H01F17/04

    CPC分类号： H01F1/344 ,  C04B35/265 ,  C04B35/2666

    摘要： A ferrite which has a high initial permeability, excellent anti-stress properties and excellent temperature characteristic, obviates the use of lead, and is inexpensive, the ferrite being capable of materialize the narrow tolerance and high reliability of a resin mold type inductor without causing environmental pollution, the ferrite having a main component containing at least iron oxide and nickel oxide, an additive containing at least one of bismuth oxide, vanadium oxide, phosphorus oxide and boron oxide, a first auxiliary component containing silicon oxide and a second auxiliary component containing at least one of magnesium oxide, calcium oxide, barium oxide and strontium oxide, the content of the additive being 0.5 to 15 wt % based on the main component, the content of each auxiliary component being 0.1 to 10.0 wt % based on the main component, and a resin mold type inductor for which the above ferrite is applied.

    摘要翻译： 具有高初始磁导率，优异的抗应力性能和优异的温度特性的铁素体避免了铅的使用，并且成本低廉，铁氧体能够实现树脂模型型电感器的窄公差和高可靠性而不引起环境 污染，具有至少含有氧化铁和氧化镍的主成分的铁素体，含有氧化铋，氧化钒，氧化磷和氧化硼中的至少一种的添加剂，含有氧化硅的第一辅助成分和含有氧化硅的第二辅助成分 氧化镁，氧化钙，氧化钡和氧化锶中的至少一种，添加剂的含量相对于主成分为0.5〜15重量％，各辅助成分的含量相对于主成分为0.1〜10.0重量％ 以及应用上述铁氧体的树脂模型型电感器。

    Electric wave absorber
    5.
    发明授权
    Electric wave absorber 失效
    电波吸收器

    公开(公告)号：US06259394B1

    公开(公告)日：2001-07-10

    申请号：US09390293

    申请日：1999-09-03

    申请人： Taku Murase ,  Naoyoshi Sato ,  Hiroshi Kurihara ,  Toshifumi Saitoh ,  Motonari Yanagawa ,  Kozo Hayashi ,  Kyoichi Fujimoto

    发明人： Taku Murase ,  Naoyoshi Sato ,  Hiroshi Kurihara ,  Toshifumi Saitoh ,  Motonari Yanagawa ,  Kozo Hayashi ,  Kyoichi Fujimoto

    IPC分类号： H01Q1700

    CPC分类号： H05K9/0069 ,  H01Q17/008

    摘要： An electrically conductive member constituted by at least one member of the group consisting of carbon black, graphite and carbon fiber, a powdered or granulated material of an inorganic hollow body and inorganic reinforcing fiber are bonded to one another by an inorganic adhesive agent to thereby form an electric wave absorber. The electric wave absorber exhibits excellent electric wave absorbing power because of both the electrically conductive member and the powdered or granulated material of the inorganic hollow body which are contained in the electric wave absorber. The electric wave absorber has excellent mechanical strength because of the inorganic reinforcing fiber which is contained in the electric wave absorber. The electric wave absorber exhibits excellent nonflammable characteristic because of both the powdered or granulated material of the inorganic hollow body and the inorganic reinforcing fiber which are contained in the electric wave absorber. Preferably, the electric wave absorber is provided with a nonflammable layer which is integrally bonded to at least one portion thereof and which is constituted by at least one member of the group consisting of a nonflammable sheet made from a slurry containing sepiolite as a main component, and an inorganic coating agent layer.

    摘要翻译： 由碳黑，石墨和碳纤维组成的组中的至少一个构成的导电构件，无机中空体的粉末或粒状材料和无机增强纤维通过无机粘合剂彼此粘合，从而形成 电波吸收器。 电波吸收体既包含在电波吸收体中的无机中空体的导电性构件和粉末状或造粒材料，则表现出优异的电波吸收能力。 由于包含在电波吸收体中的无机增强纤维，电波吸收体具有优异的机械强度。 由于电波吸收体中含有的无机中空体的粉末状或粒状物质和无机增强纤维两者，电波吸收体表现出优异的不易燃特性。 优选地，电波吸收体具有与其至少一部分一体地结合的不易燃层，其由至少一种由含有海泡石作为主要成分的浆料制成的不可燃片材构成， 和无机涂层剂层。

    Process for preparation of oxide magnetic compact
    6.
    发明授权
    Process for preparation of oxide magnetic compact 失效
    氧化物磁性体的制备方法

    公开(公告)号：US6113843A

    公开(公告)日：2000-09-05

    申请号：US274931

    申请日：1999-03-23

    申请人： Takuya Aoki ,  Taku Murase ,  Kazuhiro Takakura ,  Jun Sawai ,  Naoyoshi Sato

    发明人： Takuya Aoki ,  Taku Murase ,  Kazuhiro Takakura ,  Jun Sawai ,  Naoyoshi Sato

    IPC分类号： C01G49/00 ,  C04B35/26 ,  C04B35/38 ,  H01F1/34 ,  H01J29/76

    CPC分类号： H01J29/76 ,  C04B35/2625 ,  H01F1/344 ,  H01J2229/7031

    摘要： The process for the preparation of an oxide magnetic compact of the invention comprises:a step of preparing a mixed material which comprises 44 to 50 mole % of iron calculated as Fe.sub.2 O.sub.3, 0.1 to 8 mole % of manganese calculated as Mn.sub.2 O.sub.3, with the sum of iron and manganese being 50 to 54 mole % calculated as Fe.sub.2 O.sub.3 and Mn.sub.2 O.sub.3, 20 to 38 mole % of magnesium calculated as MgO, 17 to 22 mole % of zinc calculated as ZnO and not more than 5 mole % of copper calculated as CuO, anda step of molding the aforesaid mixed material to a predetermined shape and then firing it in an atmosphere of low oxygen concentration of 2.5 to 12% by volume. Therefore, there appears an extremely excellent effect that the oxide magnetic compact having excellent electromagnetic properties can be obtained at low cost.

    摘要翻译： 制备本发明的氧化物磁性压块的方法包括：制备混合材料的步骤，该混合材料包含以Fe 2 O 3计为44〜50摩尔％的铁，以Mn 2 O 3计为0.1〜8摩尔％的锰， 按Mn计算的铁和锰为50〜54摩尔％，以MgO计为20〜38摩尔％的镁，以ZnO计为17〜22摩尔％的锌，以CuO计为5摩尔％以下的铜， 将上述混合材料成型为规定形状，然后在低氧浓度为2.5〜12体积％的气氛中烧成的工序。 因此，可以以低成本获得具有优异的电磁特性的氧化物磁性粉末的极好的效果。

    Incombustible honeycomb radio absorptive material and radio absorber using the same
    10.
    发明授权
    Incombustible honeycomb radio absorptive material and radio absorber using the same 有权
    不燃蜂窝式无线电吸收材料及其使用的无线电吸收体

    公开(公告)号：US06217978B1

    公开(公告)日：2001-04-17

    申请号：US09384383

    申请日：1999-08-27

    申请人： Taku Murase ,  Naoyoshi Sato ,  Hiroshi Kurihara ,  Toshifumi Saitoh ,  Motonari Yanagawa ,  Kozo Hayashi ,  Kyoichi Fujimoto

    发明人： Taku Murase ,  Naoyoshi Sato ,  Hiroshi Kurihara ,  Toshifumi Saitoh ,  Motonari Yanagawa ,  Kozo Hayashi ,  Kyoichi Fujimoto

    IPC分类号： B32B312

    CPC分类号： H05K9/0003 ,  H01Q17/00 ,  H01Q17/008 ,  Y10T428/24149

    摘要： An incombustible honeycomb radio absorptive material is disclosed, forming a honeycomb structure that is an aggregate of many cells, wherein (i) the honeycomb structure contains a hydrated inorganic compound and an electrically conductive material, or (ii) the honeycomb structure contains a hydrated inorganic compound and has an electrically conductive layer made of an electrically conductive material being formed on the surface of the structure. A radio absorber is also disclosed, wherein a large number of the incombustible honeycomb radio absorptive materials are disposed on a shield panel or a ferrite tile covering he shield panel is provided. The incombustible honeycomb radio absorptive material and the radio absorber using it according to the invention are suitably used for an anechoic chamber and are excellent in the fire resistance and the radio absorption effect.

    摘要翻译： 公开了一种不燃性蜂窝状无线电吸收材料，形成蜂窝结构体，其为许多细胞的集合体，其中，（i）蜂窝结构体含有水合无机化合物和导电材料，或（ii）蜂窝结构体含有水合无机物 并且具有由导电材料制成的导电层，形成在该结构体的表面上。 还公开了一种无线电收发器，其中大量的不可燃蜂窝式无线电吸收材料设置在屏蔽板上，或者设置了覆盖其屏蔽板的铁氧体瓦片。 根据本发明的不燃性蜂窝状无线电吸收材料和使用它的无线电吸收体适用于电波暗室，耐火性和无线电吸收效果优异。